Starter
For your first email program.
$16USD / month
$192 billed yearly.
20,000 emails / month
Choose Starter- 5 brands · 3 seats
- 5 custom sending domains
- 500 email verifications/month
- $1.50 / 1,000 extra emails
Nitrosend ranks first of the eight SMS marketing tools for AI reviewed here, with the top score of 76.5 out of 100, for a team that runs its email marketing from an AI assistant and wants texting in the same place once it arrives. The tests score the email side and the assistant, and Nitrosend's texting is coming soon: it is not open to customers today. To run email from an AI assistant with Nitrosend, connect the MCP server at api.nitrosend.com/mcp to Claude, ChatGPT, Cursor or Codex with an OAuth sign-in. The assistant then writes email campaigns and flows from one contact record. Campaigns and flows stay drafts until they are approved, and a single transactional email sends on the call. Attentive's beta MCP server can draft and schedule campaigns across text and email today. Emails come out in your brand's colors, fonts and voice, and email costs $20 a month for 20,000 with unlimited contacts. Omnisend comes next at 61.5, then Attentive at 52. If you need to send texts now, or texting is the whole program, a dedicated SMS tool or Omnisend is the better pick, and the list below says which.
The ranking
Rank 1Nitrosend
76.5 out of 100Total
- Priced by
- Emails sent
- Free plan
- 5,000 emails, then 500 a month
- Entry plan
- $20 a month, 20,000 emails
- Works from your AI assistant9 out of 10Official MCP server writes and sends email campaigns, flows and single emails from the chat; campaigns and flows stay drafts until approved, and texting is coming soon (MCP registry).
- Emails in your brand, no designer9 out of 10Brand Kit scans the site for colors, fonts and voice, and applies them to every draft on every plan (docs).
- Price8.5 out of 10Unlimited contacts on every plan. $20 a month for 20,000 emails and $650 for a million emails on Scale including overage (pricing).
- Free plan7 out of 105,000 emails to start, then 500 a month, unlimited contacts. New accounts start at 100 recipients per rolling 24 hours (pricing).
- Receipts and newsletters on one plan9 out of 10Receipts, resets and newsletters share one allowance and one API on every plan. Texting is coming soon and is not open to customers yet (pricing).
- Editor for building by hand6 out of 10A block builder exists for editing by hand, but it is plainer, because the agent is the main way in.
- Integrations, support and track record5 out of 10Shopify, Stripe, HubSpot, Attio and Mailchimp, five bring-your-own sending providers, a Node SDK, a CLI and signed webhooks for transactional email, but a young product from a small team (docs).
Nitrosend
Ask your agent for the next campaign
Connect Nitrosend to Claude, ChatGPT, Cursor or Codex, point Brand Kit at your site, and describe the next email campaign or flow. Texting is coming soon. Contacts are unlimited on every plan.
Free: 5,000 emails to start, then 500 a month. No credit card.
Start free
Rank 2Omnisend
61.5 out of 100Total
- Priced by
- Contacts emailed
- Free plan
- 250 contacts, 500 emails a month
- Entry plan
- $16 a month, 500 contacts
- Works from your AI assistant8 out of 10Official Claude connector and ChatGPT plugin, connected by OAuth, whose execute tool runs Send campaign, Create automation workflow and Enable automation workflow (docs).
- Emails in your brand, no designer7 out of 10Imports logo, colors and fonts from your Shopify, WooCommerce or BigCommerce store, not voice (Omnisend help).
- Price3 out of 10Billed by contacts. Standard is $132 a month at 10,000, and above 150,000 it is by quote (pricing).
- Free plan4 out of 10500 emails a month to up to 250 contacts, with 24/7 support (pricing).
- Receipts and newsletters on one plan6 out of 10Order and shipping emails run as automations on every plan, triggered by store events (Omnisend help).
- Editor for building by hand7 out of 104.6 of 5 across 1,245 reviews, but Limited Templates is a recurring complaint (G2).
- Integrations, support and track record8 out of 10335+ integrations, web push and 24/7 live chat support on every plan, and SMS on Pro (pricing).
Rank 3Attentive
52 out of 100Total
- Priced by
- List size and messages sent
- Free plan
- None, a free trial
- Entry plan
- Quote after a call
- Works from your AI assistant7 out of 10Official MCP server, in beta, drafts campaigns across text, email and push and can schedule the send, once your account is set up (docs).
- Emails in your brand, no designer3 out of 10Attentive AI creates campaigns inside the product. Nothing on its pricing page reads your brand from your site (pricing).
- Price2 out of 10No price is published. It says pricing is set by list size, messages sent, channels and AI tools (pricing).
- Free plan1 out of 10No free plan. A free trial after a form (pricing).
- Receipts and newsletters on one plan6 out of 10Text and email campaigns and triggered messages in one package. No transactional API is published (pricing).
- Editor for building by hand8 out of 10Mature campaign, journey and sign-up builders for text, email and push (Attentive).
- Integrations, support and track record8 out of 10Founded in 2016 and used by large retail brands, with integrations and a customer success team (pricing).
Rank 4Twilio
43.5 out of 100Total
- Priced by
- Texts sent, per segment
- Free plan
- None, a 30-day trial
- Text rate
- $0.0083 to the US
- Works from your AI assistant5 out of 10Twilio Labs publishes an MCP server that exposes the raw Twilio API. It sends one message at a time, with no campaign to send (GitHub).
- Emails in your brand, no designer1 out of 10Programmable Messaging sends whatever text your code builds. Nothing learns your brand (pricing).
- Price4 out of 10Email is SendGrid Marketing Campaigns, a second product: $60 a month at 10,000 contacts on Advanced, the first plan with automation, and a quote above 200,000 (pricing).
- Free plan1 out of 10No free plan. A 30-day trial with 100 free texts and no card (pricing).
- Receipts and newsletters on one plan4 out of 10Texts through the Messaging API, and email through SendGrid, a second product on its own plan and bill (pricing).
- Editor for building by hand4 out of 10No editor for texts. SendGrid Marketing Campaigns, sold separately, has design and code editors (pricing).
- Integrations, support and track record9 out of 10The reference API for programmable messaging, voice and email since 2008, at very large scale (Twilio).
Rank 5EZ Texting
39.5 out of 100Total
- Priced by
- Text credits
- Free plan
- None, a 14-day trial
- Entry plan
- $25 a month, 500 credits
- Works from your AI assistant7 out of 10Official hosted MCP server with OAuth, covering messaging, contacts, workflows and reports (MCP registry).
- Emails in your brand, no designer2 out of 10AI Compose and AI Reply write texts. Nothing reads your brand from your site (pricing).
- Price0 out of 10Sells no email, so it cannot be priced on this test (pricing).
- Free plan1 out of 10No free plan. A 14-day trial with no card (pricing).
- Receipts and newsletters on one plan3 out of 10Texts only, no email. Mass texts, workflows and API sends run from one account (pricing).
- Editor for building by hand7 out of 10Mass texting, workflows, conversational texting, text-to-pay and short codes (pricing).
- Integrations, support and track record6 out of 10Setup within one business day, an onboarding specialist on Scale, and a dedicated manager on Enterprise (pricing).
Rank 6Postscript
34.5 out of 100Total
- Priced by
- Texts sent, plus a monthly fee
- Free plan
- None, a free trial
- Entry plan
- Starter, $49 monthly minimum
- Works from your AI assistant2 out of 10No official MCP server or assistant app. Only community-built MCP servers wrap its API (pricing).
- Emails in your brand, no designer3 out of 10Brand Center keeps AI messages in your voice, on the $699 a month AI plan. Nothing reads your brand from your site (pricing).
- Price2 out of 10Email is on a waitlist with no published price, so it is scored as a quote (pricing).
- Free plan1 out of 10No free plan. A free trial on each plan, then a $49 monthly minimum on Starter (pricing).
- Receipts and newsletters on one plan3 out of 10Texts only for now. Campaigns and order texts run from one Shopify-connected account, and email is on a waitlist (pricing).
- Editor for building by hand7 out of 10A visual flow builder with templates for cart, browse, welcome and shipping texts, and sign-up popups (pricing).
- Integrations, support and track record6 out of 10Built for Shopify stores since 2019, with live chat on Growth and API access from Professional (pricing).
Rank 7SimpleTexting
31 out of 100Total
- Priced by
- Text credits
- Free plan
- None, a free trial
- Entry plan
- $29 a month, 500 credits, plus a number
- Works from your AI assistant2 out of 10No official MCP server or assistant app. Only a community-built MCP server wraps its API (pricing).
- Emails in your brand, no designer2 out of 10An AI Assist message generator writes texts. Nothing reads your brand from your site (pricing).
- Price0 out of 10Sells no email, so it cannot be priced on this test (pricing).
- Free plan1 out of 10No free plan. A free trial with no card, then a 30-day money-back guarantee (pricing).
- Receipts and newsletters on one plan3 out of 10Texts only, no email. Campaigns, auto-replies and API sends run from one account (pricing).
- Editor for building by hand7 out of 10Campaigns, drip sequences, keywords, MMS and segments, with unlimited contacts on every plan (pricing).
- Integrations, support and track record7 out of 10Running since 2010 and part of Sinch since 2021, with integrations and chat and phone support (pricing).
Rank 8SlickText
31 out of 100Total
- Priced by
- Text credits
- Free plan
- None, a 14-day trial
- Entry plan
- $29 a month, 500 credits
- Works from your AI assistant2 out of 10No MCP server or assistant app, first-party or listed, but its v2 API creates and sends campaigns, so an agent can work it only through the raw API (API).
- Emails in your brand, no designer2 out of 10No brand learning from your site. You write the texts (SlickText).
- Price0 out of 10Sells no email, so it cannot be priced on this test (pricing).
- Free plan1 out of 10No free plan. A 14-day trial with no card (pricing).
- Receipts and newsletters on one plan3 out of 10Texts only, no email. Campaigns, workflows and API sends run from one account (pricing).
- Editor for building by hand7 out of 10Campaigns, workflows, segments, popups, web forms and text-to-join keywords (SlickText).
- Integrations, support and track record7 out of 10Founded in 2011, rated 4.8 of 5 by 1,900+ reviewers on G2 by its own count, with US in-house support (SlickText).
How they compare
How each one scores
Scores out of 10, September 26, 2026| What we compared | Nitrosend | Omnisend | Attentive | Twilio | EZ Texting | Postscript | SimpleTexting | SlickText |
|---|---|---|---|---|---|---|---|---|
| Works from your AI assistant20 points | 9 out of 10 | 8 out of 10 | 7 out of 10 | 5 out of 10 | 7 out of 10 | 2 out of 10 | 2 out of 10 | 2 out of 10 |
| Emails in your brand, no designer10 points | 9 out of 10 | 7 out of 10 | 3 out of 10 | 1 out of 10 | 2 out of 10 | 3 out of 10 | 2 out of 10 | 2 out of 10 |
| Price20 points | 8.5 out of 10 | 3 out of 10 | 2 out of 10 | 4 out of 10 | 0 out of 10 | 2 out of 10 | 0 out of 10 | 0 out of 10 |
| Free plan10 points | 7 out of 10 | 4 out of 10 | 1 out of 10 | 1 out of 10 | 1 out of 10 | 1 out of 10 | 1 out of 10 | 1 out of 10 |
| Receipts and newsletters on one plan10 points | 9 out of 10 | 6 out of 10 | 6 out of 10 | 4 out of 10 | 3 out of 10 | 3 out of 10 | 3 out of 10 | 3 out of 10 |
| Editor for building by hand15 points | 6 out of 10 | 7 out of 10 | 8 out of 10 | 4 out of 10 | 7 out of 10 | 7 out of 10 | 7 out of 10 | 7 out of 10 |
| Integrations, support and track record15 points | 5 out of 10 | 8 out of 10 | 8 out of 10 | 9 out of 10 | 6 out of 10 | 6 out of 10 | 7 out of 10 | 7 out of 10 |
| Total scoreout of 100 | 76.5 out of 100,1st | 61.5 out of 100,2nd | 52 out of 100,3rd | 43.5 out of 100,4th | 39.5 out of 100,5th | 34.5 out of 100,6th | 31 out of 100,tied 7th | 31 out of 100,tied 7th |
Here are the seven yes-or-no questions people usually ask before they choose an SMS tool. A tick means the service does it, as described on its own pages today. A dash means the answer is not a clean yes or no.
8 services, side by side
Checked November 10, 2026QuestionNitrosendOmnisendAttentiveTwilioEZ TextingPostscriptSimpleTextingSlickText
NitrosendOmnisendAttentiveTwilioEZ TextingPostscriptSimpleTextingSlickTextSend a campaign from the chatCan an agent send a marketing campaign, email or text, without anyone opening the web app?Nitrosend: Yes.Omnisend: Yes.Attentive: Yes.Twilio: Not a yes or no.EZ Texting: Yes.Postscript: No.SimpleTexting: No.SlickText: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes, through the MCP server. Campaigns stay drafts until approved. |
| Omnisend | Yes. Yes. Its MCP server's execute tool runs Send campaign. |
| Attentive | Yes. Yes, through its beta MCP server, which can schedule a campaign send. |
| Twilio | Not a yes or no. Its MCP server exposes the raw API, one message at a time. There is no campaign to send. |
| EZ Texting | Yes. Yes, through its hosted MCP server, which covers messaging and contacts. |
| Postscript | No. No first-party route. Only community MCP servers. |
| SimpleTexting | No. No first-party route. |
| SlickText | No. No. |
Official MCP serverIs there a first-party MCP server?Nitrosend: Yes.Omnisend: Yes.Attentive: Yes.Twilio: Yes.EZ Texting: Yes.Postscript: No.SimpleTexting: No.SlickText: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. Listed as com.nitrosend/nitrosend on the official MCP registry. |
| Omnisend | Yes. Yes, as a ChatGPT plugin and a Claude connector. |
| Attentive | Yes. Yes, in beta. |
| Twilio | Yes. Yes, from Twilio Labs. |
| EZ Texting | Yes. Yes, hosted, with OAuth. |
| Postscript | No. No. |
| SimpleTexting | No. No. |
| SlickText | No. No. |
Email and SMS on one contact recordDo email and text share one customer profile and one consent record?Nitrosend: No.Omnisend: Yes.Attentive: Yes.Twilio: No.EZ Texting: No.Postscript: Not a yes or no.SimpleTexting: No.SlickText: No.
| Service | Answer |
|---|---|
| Nitrosend | No. Not yet. Texting is coming soon and is not open to customers. |
| Omnisend | Yes. Yes. Email, texts and web push share one contact. |
| Attentive | Yes. Yes. Text and email subscribers in one platform. |
| Twilio | No. No. Email is SendGrid, a separate product and bill. |
| EZ Texting | No. No. It sells no email. |
| Postscript | Not a yes or no. Email is on a waitlist, so there is no email record yet. |
| SimpleTexting | No. No. It sells no email. |
| SlickText | No. No. It sells no email. |
SMS inside automated flowsCan an automated flow send a text as one of its steps?Nitrosend: No.Omnisend: Yes.Attentive: Yes.Twilio: Not a yes or no.EZ Texting: Yes.Postscript: Yes.SimpleTexting: Yes.SlickText: Yes.
| Service | Answer |
|---|---|
| Nitrosend | No. Not yet. Texting is coming soon and is not open to customers. |
| Omnisend | Yes. Yes. Automations send email and texts. |
| Attentive | Yes. Yes, in journeys. |
| Twilio | Not a yes or no. Twilio Studio builds messaging flows, with no marketing automation. |
| EZ Texting | Yes. Yes, in workflows. |
| Postscript | Yes. Yes, in its visual flow builder. |
| SimpleTexting | Yes. Yes, drip campaigns and auto-replies. |
| SlickText | Yes. Yes, in workflows. |
Two-way textingCan customers reply, and can a person or agent answer them in the product?Nitrosend: No.Omnisend: Not a yes or no.Attentive: Not a yes or no.Twilio: Yes.EZ Texting: Yes.Postscript: Yes.SimpleTexting: Yes.SlickText: Yes.
| Service | Answer |
|---|---|
| Nitrosend | No. Not yet. Texting is coming soon and is not open to customers. |
| Omnisend | Not a yes or no. Not described on its pricing page. |
| Attentive | Not a yes or no. Not described on its pricing page. |
| Twilio | Yes. Yes, through the API and Twilio Conversations. |
| EZ Texting | Yes. Yes, conversational texting. |
| Postscript | Yes. Yes. You can reply to texts from subscribers. |
| SimpleTexting | Yes. Yes. Replies are free and land in its inbox. |
| SlickText | Yes. Yes, in its inbox. |
Published price per textIs a per-text US rate printed on the pricing page?Nitrosend: No.Omnisend: Yes.Attentive: No.Twilio: Yes.EZ Texting: Yes.Postscript: Yes.SimpleTexting: Yes.SlickText: Not a yes or no.
| Service | Answer |
|---|---|
| Nitrosend | No. No. Texting is not available yet, so there is no rate. |
| Omnisend | Yes. Yes. From $0.007 a text, in credit packs. |
| Attentive | No. No. Only the carrier fees it passes through are published. |
| Twilio | Yes. Yes. $0.0083 a text to the US. |
| EZ Texting | Yes. Yes. Extra credits from 3 to 4 cents. |
| Postscript | Yes. Yes. $0.009 a text on Starter. |
| SimpleTexting | Yes. Yes. Credits from 5.5 cents, less on bigger plans. |
| SlickText | Not a yes or no. Credit bundles, not a per-text rate. |
Free plan with no time limitIs there a free plan that does not expire?Nitrosend: Yes.Omnisend: Yes.Attentive: No.Twilio: No.EZ Texting: No.Postscript: No.SimpleTexting: No.SlickText: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. 5,000 emails to start, then 500 a month. |
| Omnisend | Yes. Yes, up to 250 contacts. |
| Attentive | No. No. A free trial. |
| Twilio | No. No. A 30-day trial. |
| EZ Texting | No. No. A 14-day trial. |
| Postscript | No. No. A free trial. |
| SimpleTexting | No. No. A free trial. |
| SlickText | No. No. A 14-day trial. |
Yes answersOut of the questions that have a yes or no for that service3 of 7 yes for Nitrosend6 of 6 yes for Omnisend4 of 6 yes for Attentive3 of 5 yes for Twilio5 of 7 yes for EZ Texting3 of 6 yes for Postscript3 of 7 yes for SimpleTexting2 of 6 yes for SlickText
At a glance
8 services, the same 7 tests, 100 points in all. In order: Nitrosend 76.5, Omnisend 61.5, Attentive 52, Twilio 43.5, EZ Texting 39.5, Postscript 34.5, SimpleTexting 31, SlickText 31. Nitrosend has the best score on Works from your AI assistant, Emails in your brand, no designer, Price, Free plan and Receipts and newsletters on one plan. Every price and feature was read on each company's own pages on September 26, 2026.
When another service is the better pick
These scores measure email marketing run from an AI assistant, for a team that also sends texts. Nitrosend's texting is coming soon, so for texts you need to send today, every service below is ahead of it. Read these before you choose.
- Pick SimpleTexting if texting is the program and you are a small team. Contacts are unlimited, two-way messaging is included and incoming texts are free, and keywords and drip campaigns are built in, per SimpleTexting's pricing page. It is $29 a month for 500 credits plus a $10 number, and about $326 for 10,000 texts.
- Pick SlickText if collecting numbers is the hard part. Website popups, web forms and text-to-join keywords are the center of the product, and SlickText lists its support as US-based and in-house. It is $319 a month for 10,000 credits.
- Pick Postscript if you run a Shopify store and texting is your main channel. It segments on your Shopify data, and texts are $0.009 each on Starter, with a $49 monthly minimum, plus carrier fees. Postscript email is open by waitlist, onboarding brands in cohorts.
- Pick EZ Texting if you want a plain mass text out the door fast, from an assistant too. Its hosted MCP server covers messaging, contacts and workflows, and its pricing page puts setup within one business day.
- Pick Attentive if you are a large retail brand with the volume to negotiate. Its beta MCP server can draft and schedule campaigns across text, email and push. No price is published, so you need a sales call first. The Attentive alternatives page covers why people leave.
- Pick Twilio if you are building messaging into your own product. It has the most complete messaging API here, at $0.0083 a text plus carrier fees, and a developer builds everything else. The Twilio alternatives page compares the APIs at that layer.
- Pick Omnisend if you run a smaller store and want email, texts and web push in one automation. It beats Nitrosend on the editor and on integrations and support, and its texts start at $0.007 each, a rate that applies to high-volume US sending. The Nitrosend and Omnisend comparison goes through it test by test.
What each one costs in 2026
Two bills matter on this page: email and texts. The first table prices the email side at the same two volumes used on every email comparison on this site. The second shows 10,000 US texts a month, which is not scored, because not every service publishes a rate. Nitrosend has no text rate because its texting is not available yet.
What sending costs
List prices, USD, monthly, September 26, 2026| Service | 20,000 emails a month | 1,000,000 emails a month |
|---|---|---|
| Nitrosend (pricing page) | $20Starter, contacts unlimited | $650Scale, contacts unlimited, including overage |
| Omnisend (pricing page) | $132Standard, paid monthly. The page opens on a 30% prepay discount | Ask salesBy quote. Published tiers stop at 150,000 contacts, $1,456 |
| Attentive (pricing page) | Ask salesQuote only | Ask salesQuote only |
| Twilio (pricing page) | $60SendGrid Marketing Campaigns Advanced, the first plan with automation. A second product and bill | Ask salesSendGrid quote above 200,000 contacts. A second product and bill |
| EZ Texting (pricing page) | No emailSells no email | No emailSells no email |
| Postscript (pricing page) | WaitlistEmail is on a waitlist, with no price | WaitlistEmail is on a waitlist, with no price |
| SimpleTexting (pricing page) | No emailSells no email | No emailSells no email |
| SlickText (pricing page) | No emailSells no email | No emailSells no email |
At 20,000 emails a month, Nitrosend is $20. Twilio's email is SendGrid Marketing Campaigns, a second product, at $60 for 10,000 contacts on the first plan with automation. Omnisend is $132. Attentive publishes no price, Postscript's email is on a waitlist, and EZ Texting, SimpleTexting and SlickText sell no email at all.
At a million emails, Nitrosend is $650, and everyone else here that sells email moves to a quote.
What 10,000 texts cost
List prices, USD, monthly, September 26, 2026| Service | 10,000 US texts a month |
|---|---|
| Nitrosend (pricing page) | Not yet availableTexting is coming soon. Email only today |
| Omnisend (pricing page) | $9010,588 US texts for $90, added to the Pro plan |
| Attentive (pricing page) | Ask salesNo rate published, carrier fees passed through |
| Twilio (pricing page) | $83Lowest. $0.0083 a text, plus carrier fees and a number |
| EZ Texting (pricing page) | $407.50Boost, $75 with 500 credits, plus 9,500 at 3.5 cents |
| Postscript (pricing page) | $90Starter, $0.009 a text, plus carrier fees averaging $0.0033 |
| SimpleTexting (pricing page) | $326.507,500 credits for $229, 2,500 more at 3.5 cents, and a $10 number |
| SlickText (pricing page) | $31910,000 credits a month |
For texts, the lowest published rates are Omnisend from $0.007, $90 for 10,588 texts, then Twilio at $0.0083 and Postscript at $0.009, all before carrier fees. The credit-based tools cost $319 to $408 for 10,000 texts, and they include the campaign tools a developer would otherwise build.
How we scored
Every service gets a score out of 10 on the same seven tests. Each test is worth a set number of points, 100 in all. These are the tests and points used on every email marketing comparison on this site, applied here to a team that sends email and texts. Working from your AI assistant and price are worth the most, 20 points each. The editor and the integrations, support and track record share 30 points.
Each test is a question with one answer per service, checked against the service's own pages on September 26, 2026. A 10 means it does the job fully on its normal plans. A 5 means it does part of it, or only on a higher plan or in a second product.
Works from your AI assistant, 20 points. Can an agent inside Claude, ChatGPT, Cursor or Codex compose a marketing campaign, test it, and send it, with no person opening the web app between the prompt and the send? An approval step the person answers in the chat counts as inside the agent. Moving into the web app to finish does not. Scored on one written rule for every vendor: a first-party server the vendor runs and that can send counts fully; a third-party wrapper (Zapier, Composio, Kanopi, community servers) counts for less; a server that only drafts or reads counts for less than one that sends.
Emails in your brand, no designer, 10 points. Does the product learn your logo, colors, fonts and voice from your own site and apply them to every email it drafts, on the plan most small teams start on?
Price, 20 points. What does email cost each month at 20,000 emails, a 10,000-contact list emailed twice, and at 1,000,000, a 500,000-contact list emailed twice? Scored on list prices in US dollars, paid monthly, at the cheapest plan that holds the contacts, covers the sends and includes automated emails such as a welcome series. Every ranking on this site uses the same fixed scale. At 20,000 emails, $20 or less scores 10, then $25 scores 9, $32 scores 8, $40 scores 7, $50 scores 6, $70 scores 5, $100 scores 4 and $140 scores 3. At 1,000,000, $500 or less scores 10, then $625, $800, $1,000, $1,250, $1,750, $2,500 and $3,500 step down the same way. Anything dearer, or a price given only by quote, scores 2. A free product scores 10. The score is the average of the two. A service that sells no email scores 0. Text message prices are shown in the price table but not scored, because not every service here publishes one. Nitrosend has no text rate because its texting is not available yet.
Free plan, 10 points. How far can a team get on the free plan before it has to pay: contacts, total sends, and the daily ceiling.
Receipts and newsletters on one plan, 10 points. Can receipts, password resets and newsletters go out from one account, on one bill, through one API?
Editor for building by hand, 15 points. For a person who wants to build the email themselves: how mature are the visual editor and the template library?
Integrations, support and track record, 15 points. How many tools does it plug into, what support comes with the plan, and how long has it been doing this at scale?
Scoring SMS tools on email tests is a choice, and it decides the order. A service that sells no email scores 0 on price and low on the one-plan test, whatever its text rate. That is why the dedicated SMS tools sit in the bottom half here, and why the Pick lines above name them for texting. Text prices and inbox placement are not scored, and no test scores whether a service's texting is live. Nitrosend's texting is coming soon, so its score rests on the email side and the assistant alone, and the yes-or-no table marks its texting rows as not yet available.
Texting on Nitrosend is coming soon
Texting on Nitrosend is coming soon. It is not open to customers today, and no launch date or text rate is published. What Nitrosend does today is email: campaigns, flows and single transactional emails, run from your AI assistant over MCP. Campaigns and flows stay drafts until they are approved, and a single transactional email sends on the call. If you need to send texts now, pick one of the services above.
Whichever texting tool you choose, check these first.
- Ask where replies land. Some tools document sending texts but not reading the answers. That matters more than it looks. Under the FCC's revocation rule, a reply in words other than STOP still ends consent "if a reasonable person would understand" it that way, and it must be honored within ten business days. The CTIA messaging principles give "please opt me out" as an example a sender should act on. A keyword filter catches STOP. Someone, or something, has to read the rest. SimpleTexting, SlickText and EZ Texting all have a reply inbox, so ask any tool you shortlist where a "please stop texting me" goes and how it reaches the contact's text subscription.
- Check keywords and pop-up sign-up capture. If growing a phone list is the job, SlickText and SimpleTexting build their products around it.
- Branch the follow-up on a click, not on an open. The usual two-channel flow texts the people who did not open the email. Apple's Mail Privacy Protection downloads remote content in the background whether or not the reader engages, so Apple Mail readers tend to count as opened and drop out of the "did not open" branch. A click, a purchase or another event you track is a cleaner test. Nitrosend's flow split conditions use the same filter builder as segments, which includes clicks, last clicked and event history, so an assistant can describe the branch that way when it builds an email flow today.
Use Nitrosend when email is the program and texting can wait for its launch. Use a dedicated tool when you need texts today or the text is the program.
What does SMS marketing cost in the United States?
More than the plan price, always. Every US text carries a carrier fee on top of whatever the platform charges, $0.0035 for AT&T, $0.0045 for T-Mobile and $0.005 for Verizon per outbound text on long code numbers, in Twilio's carrier fee table. Texts are billed per segment, and a segment is 160 standard characters or 70 with an emoji, so one long text can bill as two or three. Then there is the number, from $1.15 a month on Twilio to $10 on SimpleTexting, and 10DLC brand and campaign registration.
If you send a few hundred texts a month, SlickText at $29 for 500 credits and EZ Texting at $25 for 500 credits are the cheapest entry points, and SimpleTexting is $29 plus $10 for the number. If your sending is irregular, a pay-as-you-go service avoids paying for a plan you do not use.
How to launch SMS without getting your number blocked
The failure in SMS is not the spam folder. It is a carrier refusing to deliver you at all.
- Register the 10DLC brand and campaign before you send. Twilio's 10DLC guide says anyone texting the US from a 10DLC number must register, that registered traffic sees lower filtering, and that unregistered traffic pays extra carrier fees.
- Collect consent for texts specifically. Permission to email is not permission to text, and the CTIA messaging principles say consent applies only to the campaign and the sender it was given for.
- Say who you are in the first message. CTIA's confirmation message names the program, how to get help, how to reply STOP and how often messages come. Honor opt-outs at once.
- Send between 8am and 8pm in the recipient's time zone, and do the time zone arithmetic for your assistant. Postscript's compliance overview puts the federal guidance at 8am to 9pm and notes that Florida, Maryland, Oklahoma, Connecticut and Washington stop at 8pm, so 8am to 8pm is the safe window. Postscript holds a campaign until waking hours in each subscriber's time zone. A campaign with one send time reaches everyone at that moment. Across the contiguous states that leaves 11am to 8pm Eastern. In summer, Alaska on the list moves the start to noon Eastern, and Hawaii to 2pm. Tell the assistant that window, or keep the time zone as a custom field and schedule one campaign per time zone segment.
- Start small and ramp. Carriers react to sudden volume from a new number much as mailbox providers react to a cold domain, the same idea as warming up an email domain.
- Keep the email list clean at the same time. On one contact record a bad list hurts both channels, and the email blacklist checker shows what you are carrying.
SMS marketing tools FAQ
For a team that runs email marketing from an AI assistant and can wait for texting, Nitrosend, with the top score here, 76.5 out of 100. Its texting is coming soon. For texting as the whole program, SimpleTexting suits a small team, Postscript a Shopify store, SlickText a team focused on collecting numbers, and Twilio a developer building messaging into a product. Attentive is the enterprise retail option, and Omnisend puts email, texts and web push in one automation for a smaller store.
Nitrosend, for the email side. Working from your AI assistant is worth 20 of the 100 points, and Nitrosend scores 9 out of 10 on it: its official MCP server writes email campaigns and flows, and sends single transactional emails, from Claude, ChatGPT, Cursor or Codex. Campaigns and flows stay drafts until they are approved. Its texting is coming soon. Attentive and EZ Texting score 7, through Attentive's beta MCP server and EZ Texting's hosted one. Omnisend scores 8, Twilio 5, and Postscript, SimpleTexting and SlickText 2.
Entry plans run from about $25 to $49 a month for a few hundred texts, and 10,000 texts a month costs $319 to $408 on the credit-based tools read here. On top of the plan you pay US carrier fees of $0.0035 to $0.005 per outbound segment, a monthly number and 10DLC registration. Pay-as-you-go services publish per-text rates instead, such as $0.0083 on Twilio.
Not today. Nitrosend's texting is coming soon and is not open to customers yet, so a team that needs to send texts now needs a dedicated tool or Omnisend. Nitrosend suits a team whose main channel is email. If texting is the program, use SimpleTexting, SlickText or Postscript.
Yes. On this list Omnisend and Attentive send both today, and Nitrosend's texting is coming soon. On one platform, one journey spans the two channels and you build the segment once. The text side of a combined platform is usually thinner than a dedicated tool's, on keywords, replies and compliance workflow. A dedicated SMS tool beside a separate email platform gives you a better texting product and two consent records to keep in sync.
Partly. Attentive and EZ Texting publish MCP servers that can send or schedule texts, and Twilio's exposes its API. Nitrosend's MCP server runs email campaigns and flows today, described in a sentence and reviewed before they go live, and its texting is coming soon. Consent, carrier registration and reading replies stay a person's job.
Add Nitrosend's MCP server to Claude as a connector at api.nitrosend.com/mcp and sign in with OAuth. Then describe the campaign or flow in the chat, for example a welcome email today and a follow-up email two days later to anyone who did not click. Claude builds it as a draft, can send a test to your own inbox, and the flow goes live once it is approved. A single transactional email sends on the call. Texting is coming soon, so until it opens a text step needs a separate SMS tool.
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