Loops vs Mails.ai
Both sit in email marketing. Here is how they differ on the things you can actually check.
On price: Mails.ai starts $29 a month cheaper than Loops ($20 against $49, 59% less) on its Pro tier. Where a price could not be read from the vendor's page it is marked indicative below.
Loops
loops.so
Marketing and transactional email in one place with a deliberately small surface area — campaigns, loops (sequences) and an API, without the enterprise sprawl.
Mails.ai
mails.ai
Gives an AI agent a real mailbox: inbound arrives as structured reply events carrying a prompt-injection score and sender reputation, with a six-category injection scanner on every message, dedicated IPs and an MCP server. Cold email is refused at the API rather than in the fine print.
| Loops | Mails.ai | |
|---|---|---|
| Entry price | $49/mo | $20/mo |
| Entry plan | — | Pro |
| Paid annually | — | — |
| Price checked | not verified | 21 Sept 2026 |
| Pricing model | Free plan | Free plan |
| Free plan | Yes | Yes |
| Category | Email Marketing | Email Marketing |
| Around since | 2022 | 2025 |
1 of these 2 prices were read from the vendor's own pricing page, most recently on 21 Sept 2026; the rest are indicative. Entry tier only — vendors change pricing without notice.
Loops vs Mails.ai, answered
- Is Loops cheaper than Mails.ai?
- No — Mails.ai is the cheaper entry point, at $20 a month against Loops's $49, 59% less.
- Do Loops or Mails.ai have a free plan?
- Both do. Loops and Mails.ai each publish an ongoing free tier rather than a time-limited trial.
- What is the difference between Loops and Mails.ai?
- Loops: Marketing and transactional email in one place with a deliberately small surface area — campaigns, loops (sequences) and an API, without the enterprise sprawl. Mails.ai: Gives an AI agent a real mailbox: inbound arrives as structured reply events carrying a prompt-injection score and sender reputation, with a six-category injection scanner on every message, dedicated IPs and an MCP server. Cold email is refused at the API rather than in the fine print.
