Frequently asked questions
Straight answers, no needless jargon.
Who can read my messages?+
You and your recipients, no one else. Messages are encrypted on your device before sending, and only the people in the conversation hold the decryption keys.
What exactly does the server see?+
Encrypted data to transport and store, without knowing its content. One owned exception: your email address, in the clear, for anti-bot protection, account recovery, and your GDPR rights.
What happens if I lose my password?+
Your recovery phrase lets you restore your account. If you lose both the password AND the phrase, the data is permanently inaccessible — by design: no one, not even us, can decrypt it.
Can I use AKARUP on several devices?+
Yes. Your conversations, files, and notes synchronize across your devices, end-to-end encrypted. Adding a new device goes through your recovery phrase.
Can several people use the same device?+
Yes, and it is an AKARUP specialty: each account has its own keys and its own encrypted space, strictly isolated. No profile can access another's data.
Where is my data hosted?+
In France, with a French publisher, under European law.
Why post-quantum encryption now?+
Because data encrypted today can be collected and kept until quantum computers make it decryptable. Encrypting post-quantum now protects your exchanges for the long run.
How can I verify your claims?+
Our Security page publishes analyses unedited, documents the interoperability between our two implementations, and will track our external evaluation process, step by step.
How do I delete my account?+
From the app, or through the dedicated page on this site. The procedure is described on the Account deletion page.
A question not answered here?
Ask us directly and we'll expand this page.
ML-KEM-768 · ML-DSA-65 · XChaCha20-Poly1305 · Argon2id