
Canary Mail
Free plan; paid plans from about $3/month, billed yearly
AI-assisted email with encryption and a unified inbox on every platform.
Pick it if you want a free plan to start and you need it on Android, iPhone and Windows.
An email add-on for tracking opens, templates, AI writing help, notes, tasks and team signatures. If it is not working for you, here are 5 apps that do the same job, closest match first.
Built from official pricing pages and app store listings, prices checked 2026-11-01. Not paid to be here.| App | Price | Platforms | Pick it if |
|---|---|---|---|
| Mailbutler (the app you have) | Per user/month: Starter $4 / $5 | Mac, Web | - |
| Superhuman | From about $25/member/month billed yearly | Everywhere | you need it on Android, iPhone and Windows |
| Canary Mail | Free plan | Everywhere | you want a free plan to start |
| Shortwave | 14-day trial | Everywhere | you need it on Android, iPhone and Windows |
| Blue Mail | Free | Apple | you want it free |
| Gmelius | Meli $19/user/month annually | Web, iPhone, Android | you need it on Android and iPhone |


A fast, keyboard-driven email app for Gmail and Outlook, with AI.
Pick it if you need it on Android, iPhone and Windows and you want more power-user features.


AI-assisted email with encryption and a unified inbox on every platform.
Pick it if you want a free plan to start and you need it on Android, iPhone and Windows.

An AI agent for your email that sorts, writes, searches and automates.
Pick it if you need it on Android, iPhone and Windows.
Free email app that works with most email providers, with a unified inbox.
Pick it if you want it free and you need it on iPhone.
Shared inboxes, notes, delegation and an AI assistant built into Gmail for teams on Google Workspace.
Pick it if you need it on Android and iPhone and you work with a team.
We matched these apps to Mailbutler by what they are for, who they suit and where they run, using our research on each app's official website and app store listing. We have not tested them hands-on for this page. Check the price on each app's own site before you buy.