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Infomaniak Mail vs Thunderbird: catalog facts
Infomaniak Mail	Thunderbird
Freemium A free address with 20 GB storage is available; other Infomaniak mail plans are paid.	Free Free forever, funded by donations.
Android	Windows, macOS, Linux, Android
Open-source Android client Free address with 20 GB of storage and no ads	Unified inbox across every account, or each account kept separate, your choice Mail, calendar, contacts and tasks in one application rather than four
Only works with Infomaniak-hosted addresses F-Droid version lacks push notifications	The interface carries a lot of history and can feel dense next to a webmail tab Major ESR releases have historically been disruptive for add-ons and settings
Downloadable app, Hosted service	Downloadable app
Open source	Open source
License: GPL-3.0	License: MPL-2.0
Account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.