Einz - Privacy policy

Last updated: 2026-10-12

What we cannot see

Einz is an end-to-end encrypted app. Your messages, photos, videos, voice notes, and files are encrypted on your device, and the keys exist only on your device and your companion's. The server — including the people running it — cannot decrypt any content.

What the server stores

To carry a message from one device to another, the server must keep:

Encrypted message bodies and attachments (ciphertext);
The metadata delivery requires: timestamps, sizes, the sender's entrance identifier, and sequence numbers;
Entrance registration data (entrance identifiers and statuses), along with each member's display name and gender within a space.

The server does not store: message plaintext, your PIN, the shared passphrase, or any key material.

What your device stores

All of your content lives in the app's database on your device, and a PIN is required every time you open the app. Deleting a space also erases that space's data from your device.

What we don't do

No ads, no user profiling, no data selling;
No collection or analysis of your chat content (we can't, and we wouldn't);
No app store listings, no third-party analytics SDKs.

Data deletion

Delete a space: erases that space's data from your device at the same time;
Revoke an entrance: cuts off that device's access immediately;
To delete data from the server, contact us (see below).

Contact us