Moving from Threema to AChat
A messenger that asks for no phone number or email, with separate backup options for your ID and your chats. Choose Threema if you want to give no personal data at all when you sign up. Choose AChat if you also want rooms anyone can join by link, and a chat you can put on a website.
Last checked 2026-11-07. The full comparison is on AChat and Threema.
How to move across
- Sign in to AChat and pick a username. It asks for no phone number.
- Tell the people you talk to on Threema your username, or send them your link or QR code (personal chats and contacts).
- Save your recovery key somewhere only you can reach (devices and recovery). It's what brings your history back if you lose every device.
- Keep Threema open until the people you need have moved. AChat doesn't import chats from other apps.
How they differ
| Feature | AChat | Threema |
|---|---|---|
| Sign up without a phone number | Yes | Yes (their page) |
| End-to-end encryption on personal chats | Yes | Not stated on the pages we checked |
| History comes back on a new device | Partly | Partly (their page) |
AChat has no voice or video calls. Your encrypted history comes back only with another linked device or your recovery key. Lose both, and nobody can restore it, including us.
What they charge
| Plan | Price | Source |
|---|---|---|
| Threema Private | Not stated | their page |
AChat's plans are on the pricing page.
Check it yourself: Threema website.