Priced on sends, unlimited contacts, the agent surface on every plan, and BYO transport.
Mailsoftly is email marketing and automation software for small teams, sold on a calm screen, AI in the working surface, and a person on support. The plan limit is the size of your list: four tiers from a free 500 contacts up to 30,000 on Premium, each with a monthly send cap attached, and their team does the move for you free on any paid plan. If that's the shape of your program, it's a straightforward buy.
Nitrosend is an AI-native email platform. It specializes in email and prices on sends, with contacts unlimited on every plan including Free. Mailsoftly has shipped a real MCP server, so this isn't a page about an incumbent with no agent surface. It's a page about where that surface starts and stops: API access and webhooks open on the $159 Premium rung, and the automations that decide when mail goes out sit outside the API.
Where the agent surface starts is also the thing separating ManyReach, Maropost, and Moosend, so it is worth checking the same rung on each before you pick a ladder.
The two ladders are priced on different things: Mailsoftly on the contacts you hold, with a monthly send cap attached to each tier, and Nitrosend on the emails you send, with contacts unlimited. So each row names both.
| Scenario | Mailsoftly | |
|---|---|---|
| Free | 8,000 emails to start, then 500/mo forever. Unlimited contacts, full MCP, API, and CLI, no card | 500 contacts, 2,000 sends/mo, one user, no card |
| 5,000 contacts, 20,000 emails/mo | $20 Pro: 20,000 emails, 3 seats, BYO sending and AI keys | $39 Basic: 5,000 contacts, 40,000 sends, one user, and no automation on this rung |
| 15,000 contacts, 125,000 emails/mo | $100 Ultra: 125,000 emails, 5 brands, 10 seats | $79 Business: 15,000 contacts, 150,000 sends, 3 users. Basic automation starts here |
| 30,000+ contacts, 1M emails/mo | $300 Enterprise: 500K to 4M+ emails at a published price, with SSO and SAML | $159 Premium tops out at 30,000 contacts and 300,000 sends, and API access starts here. Enterprise above it is quote-only |
Prices accurate as of August 2026. Check vendor sites for current rates.
Mailsoftly keeps sending while you move, there's no contract to exit, and plans upgrade, downgrade, or cancel from billing settings.
nitro_import_contacts. Tags map onto lists and custom fields onto custom fields, so the shape survives the trip. On Premium that export is an API read; below it, a dashboard export.nitro_send_message, watched for a week before a campaign follows it.nitro_compose_flow. This step is a read-and-rebuild rather than an export, because Mailsoftly's automations endpoint isn't live yet, so nothing comes across programmatically and the triggers, steps, and branches get recreated by hand. Budget real time for it.Picking a tool is about fit. Here's what Mailsoftly is genuinely good at.
You want the move done for you rather than done yourself, by a team that lifts contacts, templates, segments, and automations across while your current sender keeps running. A person on the phone and four onboarding sessions in the price both point the same way, and so does a list that's small relative to what you send it, where a contact tier is simply the cheaper shape. Forms, landing pages, and a brand kit in the same product as the campaigns close it. None of those are close calls.
Your list is much larger than your send volume and you're tired of paying for addresses you don't mail. Campaigns and transactional email run on one set of contacts here rather than two. It's also the right call when you want the agent surface and the email API on the plan you're already on rather than at the top of the ladder, with the flows inside them rather than sitting outside. The same goes for keeping your own transport underneath a platform that can change.
For the email program, yes. Campaigns, flows, segments, templates, contacts, and transactional sending are all here, and the agent surface over them is on every plan rather than on one rung. What doesn't come across is the service around the software: Mailsoftly's team does your migration for you on any paid plan and puts four onboarding sessions in the Premium price, and we don't replace either of those.
It depends which end of the ladder you're on. At 5,000 contacts, Pro is $20 against Basic at $39. At 15,000 contacts Mailsoftly is cheaper on headline price, $79 Business against $100 Ultra. Above 30,000 contacts their published ladder stops and turns into a custom quote, where ours is $300 for 500,000 to over 4 million emails a month. The two are priced on different things, contacts held against emails sent, so the answer moves with your ratio.
Order of construction, and what it reaches. Mailsoftly built a dashboard, then an API under it, then exposed that API to agents. Nitrosend was built the other way round, so every capability is an endpoint and a tool before it's a screen. The practical test is the edges: their published endpoints cover authentication, contacts, lists, tags, and email drafts and sends, the automations and forms are marked coming soon, and API access starts on the $159 Premium plan.
On the domain, yes. Both platforms can authenticate against the same sending domain, so you can move one message type at a time and leave the rest where they are. What you can't do is point Nitrosend at Mailsoftly's transport: BYO sending keys cover Amazon SES, Resend, Postmark, Mailgun, and SendGrid, and Mailsoftly's own pool isn't one of them. What travels with you is the domain and its authentication history.