Nitrosend vs Encharge.

Send-priced, unlimited contacts, transactional on every paid plan, and BYO sending.

TL;DR

Encharge is marketing automation built for B2B SaaS. Behavior emails, a visual flow builder, user and company profiles, and native billing triggers from Stripe, Chargebee, and Paddle sit on one record. The plan is priced on the subscribers you hold, and sends are capped at a multiple of that number. If what people do inside your product is what drives your email, that model is the argument, and it's a good one.

Nitrosend is an AI-native email platform that prices what you send, so contacts are unlimited on every plan, including Free. Transactional email sits on the same platform rather than the plan above it. Every capability is an email API endpoint and an MCP tool before it's a screen, so you run all of it from one agent command rather than driving a dashboard through a bolted-on agent. The honest limit is arithmetic: their bill follows your list and ours your sending, so a big list mailed lightly favors Encharge and heavy volume favors us. SaaS teams running this shortlist usually read the Flodesk comparison, the GetResponse one, and the GMass one beside it, and the full comparison index lists the rest.

Pricing math

What you actually pay.

Both published ladders, monthly billing, in USD, before Encharge's 20% annual discount. Encharge prices on subscribers held rather than emails sent, and its send allowance is 10x the subscriber limit on Growth and 12x on Premium, so the volumes in the right-hand column are derived from the plan rather than printed on it.

Scenario	Nitrosend	Encharge
Free	8,000 emails to start, then 500/mo forever. Unlimited contacts, 1 seat, full MCP, API, and CLI	No free plan. A 14-day trial, and then $99/mo
~20,000 emails/mo	$20 Pro: 20,000 emails, 3 seats, BYO sending and AI keys	$99 Growth at 2,000 subscribers, which is where the 10x allowance lands. Transactional email and API events need Premium at $159
~100,000 emails/mo	$100 Ultra: 125,000 emails, 5 brands, 10 seats	$199 Growth at 10,000 subscribers, or $399 Premium if transactional and API events are in scope
500,000+ emails/mo	$300 Enterprise: 500K to 4M+ emails at a published price, with SSO and SAML	$550 Growth at 49,000 subscribers, $879 on Premium. Above 50,000 the published ladder stops and it becomes an enterprise conversation

Prices accurate as of August 2026. Check vendor sites for current rates.

Migration

How to switch (or run both).

Encharge keeps sending while you move, and both platforms authenticate against the same domain, so this can go one message type at a time.

Add and verify your sending domain in Nitrosend. DKIM and SPF records sit alongside Encharge's, so both platforms can send from the same domain for as long as the overlap lasts.
Export your people with their attributes and import them with nitro_import_contacts. Encharge person fields map onto custom fields and its segments map onto segments, so the shape survives the trip.
Point your product events at Nitrosend. Encharge's triggers are fed by its Ingest API, its JavaScript tracker, or Segment, so the same events have to be arriving somewhere new before any flow can fire. Send them first, watch them land, then build on them.
Rebuild the flows with nitro_compose_flow, onboarding sequence first. Billing-driven automation is the piece to plan for: Stripe and Chargebee events are native triggers inside Encharge, so the equivalent here is an event you send us.
Decide what carries your reputation. BYO sending keys on Pro and above route mail through Amazon SES, Resend, Postmark, Mailgun, or SendGrid, and Encharge's own pool isn't one of them, so a sender leaving it is changing pool whichever platform it lands on. What travels with you is the domain and its authentication history.

Honest credit

What Encharge does well.

Picking a tool is about fit. Here's what Encharge is genuinely good at.

Behavior emails are the product rather than a feature: flows fire on what someone does, or doesn't do, in your app.
A visual flow builder with over 100 automation triggers and actions, and unlimited flows on both paid plans.
Native billing integrations with Stripe, Chargebee, Recurly, Chargify, and Paddle, so trial, payment, and churn events reach a flow without middleware in between.
User Profiles show every action a person has taken on your site or in your product, in real time.
Segmentation is what they lead on, and event-based segmentation on Premium goes past attributes to what actually happened.
Company Profiles carry account-based sequences, so a message can address a whole team rather than one address.
Custom Objects let you model your own data inside the platform instead of flattening it onto contact fields.
Lead scoring and A/B testing on both broadcasts and flows, plus free email verification on every plan.
Unlimited team members on both paid plans, so adding a colleague never changes the bill.

What Nitrosend adds

Where we think we're better.

Unlimited contacts on every plan, including Free, so a list that grows without being mailed never moves the bill.
The price follows what you send: 20,000 emails on $20 Pro, 125,000 on $100 Ultra, and a published price from 500,000 to over 4,000,000 a month.
Transactional sending sits on the same platform as campaigns and flows, not on the plan above them.
A transactional recipient doesn't become a billable subscriber here, because addresses held aren't what the plan counts.
MCP-first is an architecture, not an integration: every capability is an API endpoint and an MCP tool before it's a screen.
Encharge documents an Ingest API, a JavaScript tracker, Segment, a transactional email API, and a REST API published as an OpenAPI definition, which is a way to get data in and read it back.
The tool surface here covers operating the platform, not only getting data into it.
Deliverability, billing, tests, and approvals are all tools here, and those four are what usually stop an automation dead.
BYO sending keys on Pro and above keep the transport where you want it while the platform above it changes, which is what makes the move reversible.

Use case fit

When to pick which.

Pick Encharge if

Your email is driven by what people do inside your product, your billing lives in Stripe or Chargebee and you want trial, payment, and churn events firing sequences with nothing in between, or you need account-level messaging with company profiles and lead scoring. Wanting to model your own objects rather than flatten them onto a contact record points the same way. A small list mailed hard is the shape their pricing suits.

Pick Nitrosend if

Email is the channel your program runs on and your list is much larger than your send volume, so you're tired of paying for addresses you never mail. It's the right call too when you want transactional and campaigns on one plan rather than two rungs, and when you want the platform to answer to an agent end to end, including the billing, testing, and approval steps that usually send someone back to a dashboard.

Encharge vs Nitrosend - common questions.

Can Nitrosend replace Encharge?

For the email half, yes. Campaigns, flows, segments, templates, contacts, and transactional sending are API endpoints and MCP tools before they're screens, with transactional on the same plan rather than the one above. The piece that takes real work is re-pointing the product events your behavior triggers run on, because those have to arrive somewhere new before a flow can fire. Encharge's company profiles and custom objects come across as attributes on the contact rather than as records of their own.

Is Nitrosend cheaper than Encharge?

It depends on the ratio between your list and your sending. Encharge's entry rung is $99 a month for 2,000 subscribers, which carries a 20,000-email allowance, against $20 for 20,000 emails on Nitrosend Pro. The gap narrows at the top, where 50,000 subscribers on Encharge Growth is $279 and our published Enterprise price is $300.

Do transactional sends add to my Encharge bill?

They can. A transactional send to an address that isn't already in the account creates that person in Encharge, and people with email addresses count toward the plan, so a transactional recipient can land in the number your subscription is priced on. Transactional email is a Premium feature there as well, so it sits a rung above Growth. On Nitrosend it's on the same plan as campaigns, and the bill counts sends.

What happens to Encharge's company profiles and custom objects when I move?

They come across as attributes, not as records of their own. Nitrosend holds people, custom fields, and segments, so the account data a message actually reads (a company identifier, a plan tier, a renewal date) travels as fields on the contacts in that account, and an account-level send becomes a segment over that identifier. Anything you built as a custom object stays in the system that owns it, and you send us the fields the email needs.

Start with the free tier.

8,000 emails to start, then 500 a month, unlimited contacts, full MCP, API and CLI access. No credit card.