Where Are Threema Backups Stored?
Threema writes encrypted data backups to a folder you choose, since chats never touch a server that could restore them.
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Threema's privacy promise shapes its files. With no server side message store, the phone holds the only copy of chats, and backups are explicit encrypted files you place yourself.
Data backups capture chats, groups, contacts, and the ID together for same OS restores. Threema Safe handles the lighter cross platform job of ID plus contacts. ID export covers just the identity as a string. Pick the tier matching the move, and mind that every tier is password locked.
Where Threema stores this, by platform
Internal storage/Threema/Backups
Modern versions ask where to write through the system picker instead of a fixed path. Restores only work on the same OS, so keep the file plus its password together.
Frequently asked questions
Can I move chats from Android to iPhone?
Only the ID, contacts, and settings travel through Threema Safe. Chats and media need a data backup, which restores solely on the same OS. Export important chats as text before switching platforms.
What happens if I lose the backup password?
Your private key encrypts everything and the password guards it. No password means no restore, with no company reset possible by design. Store both the backup file and its password somewhere boring and safe.
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