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Pimkin vs Thunderbird
Thunderbird is a free, open-source desktop app with mail, calendar, contacts and tasks. It is the app closest to Pimkin, and if you work on one computer and like setting up your own tools, it is a strong choice.
Pimkin and Thunderbird side by side
Each product as generally available in 2026. The notes below the table add what a check mark can't.
| Capability | Pimkin | Thunderbird |
|---|---|---|
| Mail, calendar, contacts and tasks in one app | ||
| Works with any provider: Gmail, Microsoft 365, iCloud, Fastmail, Zoho Mail and other standard accounts | ||
| Web app | — | |
| Desktop apps for Mac, Windows and Linux | ||
| Free to use |
The difference is where you can use it. Pimkin also has a web app, keeps all your devices in sync for you, and needs no add-ons or setup.
Where Pimkin differs
- A web app and automatic sync across your devices, alongside the desktop app
- One inbox and one search across every account, with nothing to add or configure
- The same app on the web and on Mac, Windows and Linux
Questions about Thunderbird
Is Pimkin a good Thunderbird alternative?
Yes. Both work with the accounts you already have, and both bring mail, calendar, contacts and tasks together. Pimkin adds a web app and keeps your devices in sync, with nothing to set up. Thunderbird is a better fit if you want a fully local, open-source desktop app you configure yourself.
Does Pimkin run on Linux like Thunderbird?
Yes. Pimkin has desktop apps for Mac, Windows and Linux, an iPhone app with an Apple Watch app, an Android app in testing, and a web app for any browser.
Do I have to install and maintain Pimkin myself, like Thunderbird?
No. Pimkin is a service we run for you, so there is nothing to maintain. The apps update themselves, and the desktop app checks each update's signature first. You keep your accounts; Pimkin connects to them.
Can I keep my existing accounts?
Yes. Pimkin connects to Gmail, Microsoft 365, iCloud, Fastmail, Zoho Mail and any standard email, calendar or contacts account, and to company directories. Nothing is migrated and you get no new address.