dunno

Content rating
Everyone
10+
Downloads
Content rating
Everyone
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About this app

DUNNO is a private messenger built for people who value their privacy. Every message, voice recording, and file is end-to-end encrypted and sent over the Tor network. There is no central server — your data stays on your device.

Chat securely Send text messages, voice messages, photos, and files. All communication is encrypted with your contact's public key and routed through Tor. Your IP address stays hidden.

Walkie-talkie (PTT) over Tor Hold to talk. Your voice is encrypted and streamed over Tor for maximum privacy. Release to listen. Perfect for quick, private conversations.

Fast Call (WebRTC) Higher quality audio calls with end-to-end encryption (DTLS-SRTP). Signaling stays on Tor. Your call audio remains private.

No accounts, no servers DUNNO doesn't need your phone number, email, or any personal information. Contacts are added by scanning a QR code — you control who can reach you.

Privacy by design • End-to-end encryption for everything • No telemetry, no crash reports, no tracking • Encrypted database (SQLCipher + Android Keystore) • No cloud backups — full encrypted backup/restore available • App lock with device PIN or fingerprint • Block unwanted contacts • Open source

DUNNO is built for anyone who wants to communicate without being watched. No accounts, no servers, no compromise.
The messenger that knows nothing
Updated on
Sep 12, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

Play Store Release V1.3.0
Content rating
Everyone
Users Interact
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App support

Phone number
+31612045441
About the developer
Eelke Greven
computerproblematiek@gmail.com
Somogybükkösd Fő utca 5 8858 Hungary