Compare
LuneaMail vs Customer.io
Customer.io is a powerful messaging platform for complex, data-driven journeys, with no free plan. LuneaMail is simpler and has a free plan: campaigns, a transactional API and webhooks, a visual builder and code mode, and AI that drafts and checks emails.
Side by side
| LuneaMail | Customer.io | |
|---|---|---|
| Free plan | Yes: 500 contacts, 2,000 emails and 15 AI emails a month, plus a 14-day Pro trial with no card. | No free plan is listed; Customer.io offers a free 14-day trial during which you can send up to 5,000 messages across all channels. Source |
| Entry price | Pro is $39/month ($32 yearly) for 2,500 contacts and 15,000 emails; Pro 5× ($129) covers 12,500 contacts and 75,000 emails. | Essentials is priced on profiles and starts at $100 per month (billed monthly) with 5,000 profiles and 1 million emails/month included. Extra profiles cost $0.009 each, so 5,000 profiles is $100/month. Source |
| Transactional email API | Yes, in every plan: API emails use the same monthly allowance, with no separate product to buy. | Yes: transactional emails are included on every plan (Essentials, Premium and Enterprise) with no separate add-on. Source |
| Campaigns and newsletters | Yes, on every plan, sent now or scheduled with a best-time suggestion. | Yes: broadcasts support one-time sends to a group and API-triggered broadcasts. Source |
| Visual builder | Yes: drag-and-drop builder with six email styles and a brand kit. | Yes: Design Studio's drag-and-drop visual editor is included on every plan. Source |
| Code / HTML templates | Yes, on every plan: edit the HTML directly with Handlebars variables, conditions and loops. | Yes: a code editor is included on every plan. Source |
| AI writing | Yes: writes on-brand drafts from your facts and fact-checks them against your brief (15 a month on Free, 75 on Pro). | Yes: the AI Agent (beta on the pricing page) can draft emails from a prompt and follow an uploaded brand style guide, alongside an AI translator and email content analysis. Source |
| AI agents (MCP) | Yes: an MCP server for your workspace, where sending needs an explicit confirmation step, plus a built-in marketing agent that asks before it sends. | Yes: the official MCP server (https://mcp.customer.io/mcp, EU: https://mcp-eu.customer.io/mcp) connects your account to Claude, ChatGPT and Cursor, and the pricing page lists it on every plan. Source |
| Webhooks | Yes: signed webhooks for subscribes, unsubscribes, bounces, complaints and campaign events, retried for about two days. | Yes: reporting webhooks can send sent, delivered, opened, clicked, bounced, spammed, unsubscribed and subscribed events to your endpoint. Source |
| Subject-line A/B tests | Yes, on every plan: test two subject lines on part of the list, then the winner goes to the rest automatically. | Yes: the pricing page lists A/B and multivariate testing as included on Essentials, Premium and Enterprise. Source |
| Automations | Welcome emails when someone joins a list, on Pro and Team. | Yes: the visual workflow builder and cross-channel campaign automation are included on every plan. Source |
| Your own sending domain | Yes, on every plan: DKIM-authenticated sending and branded click-tracking links on your domain. | Yes: domain authentication uses DNS records that include a DKIM TXT record and a DMARC record. Source |
Customer.io details checked on 23 October 2026 against Customer.io's own pages, linked above. Prices and features change; check their site for today's details. Customer.io is a trademark of its owner; this page isn't affiliated with or endorsed by them.
LuneaMail or Customer.io?
Is LuneaMail a Customer.io alternative?
Yes, for startups and SaaS teams that want marketing campaigns and app email in one place. Customer.io is a powerful messaging platform for complex, data-driven journeys, with no free plan. LuneaMail is simpler and has a free plan: campaigns, a transactional API and webhooks, a visual builder and code mode, and AI that drafts and checks emails.
When is Customer.io the better choice?
You need multi-step, event-driven journeys across email, push and SMS.
How did you check these facts?
Every Customer.io fact on this page comes from Customer.io's own website or documentation, linked in the table, and was checked on 23 October 2026. Prices and plans change; follow the links for the current details.
Other comparisons
Send your first email today
Every account starts with 14 days of Pro. No card needed.