What our server knows

Our server cannot read your messages, photos or files. It holds no names, phone numbers or email addresses.

What it does see or hold:

• Which random, nameless KUVRTs exchange messages, when, and how much.
• Sealed messages and file pieces until they arrive, for at most 45 days, and whether each one arrived, for up to 45 days more.
• Your KUVRT itself, encrypted so that only your devices and your recovery phrase can open it, and its public keys, which are in KUVRT's public key list for good.
• Your IP address while you use KUVRT. Our logs keep only a scrambled form of it, for at most 7 days.
• How often each app version is opened, counted per hour and kept for a day, without knowing by whom.
• What you send with "Write to us", without your KUVRT, for at most 90 days.

Notifications pass through your browser maker's push service, which may be outside the EU. It sees when your device is woken, never what arrived. Turning notifications off avoids even that.

Your internet provider or Wi-Fi can see that you use KUVRT, when and how much - never what you write.

KUVRT has no tracking, no analytics service and no third-party code. Names, pictures, contacts and history stay on your devices. The privacy notice at kuvrt.com/legal has the details.