Šepot – soukromý messenger
Android app by Julius Joska. Communication · Julius Joska
- Store rating
- Unknown
- Store rating count
- Unknown
- Download price
- Free to download
- In-app purchases
- Not listed in captured metadata
- Version
- 1.1.2
- Listing last refreshed
- 2026-09-15
View the original store listing
Store description excerpt
Whisper is a private messenger built on metadata minimization. Messages are encrypted from start to finish using the proven Signal protocol (X3DH and Double Ratchet) with post-quantum PQXDH protection — no one but you and the recipient, or the server operator, can read them. What makes Whisper different: • No phone number or email — your identity is just a cryptographic key, not your person. • Sealed sender — the server cannot see who is writing to whom. • Messages, photos, and documents encrypted directly on your device (SQLCipher), unlocked with a PIN or biometrics. • Disappearing messages with an optional time limit. • Contact verification with a security number — protection against eavesdropping (MITM). • Push notifications without content: only the “you have a message” signal will be received, the text itself will be downloaded only after the application is unlocked. • Optional de-Googled delivery (UnifiedPush) and entry via the Tor network. Fair boundaries: Whisper minimizes metadata, but does not promise "zero metadata". Our threat model is public — you know exactly what the server can and cannot see. Open source (AGPL-3.0 license). You can run the relay server yourself.
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