Persephona is a zero-knowledge messenger routed entirely through the Tor network. No phone number, no email, no account — and no server that ever learns who you are.
Your identity is a keypair generated on your device. Everything else follows from that.
RSA-4096 OpenPGP signing and encryption on every message, wrapped in a forward-secrecy ratchet. Only the recipient's device can read it.
The app ships with embedded Tor. Messages travel through layered encryption, so the relay never sees your IP address or who is talking to whom.
No phone number, no email, no username database. Your address is derived from your public key and shared by QR code or invite link.
The relay stores nothing readable: sealed-sender envelopes, no IP logs, no metadata. Offline messages are held encrypted and deleted on delivery.
Every message is padded to a fixed 64 KB block and mixed with random cover traffic, so even a network observer can't tell when you're really talking.
Chats, keys, and files live only in encrypted storage on your phone — protected by passphrase and optional biometric lock.
Encrypted group chats, photo and file sharing, GIFs and stickers, reactions, and peer-to-peer audio/video calls.
App updates are delivered through your own Tor relay and verified by SHA-256 before install — no app store, no tracking, no gatekeepers.
Each message passes through independent layers of protection before it ever leaves your phone.
OpenPGP RSA-4096 sign + encrypt — only the recipient's key can open it.
HMAC-SHA-256 chain keys ensure past messages stay safe even if a key leaks later.
Fixed 64 KB padding plus randomized cover traffic defeats size and timing analysis.
Layered ECDH P-256 + AES-256-GCM encryption hides sender identity from the relay itself.
Embedded Tor carries everything to a hidden-service relay — your IP never appears anywhere.
Persephona is distributed directly — outside app stores — so nothing links the app to an identity.
Grab the signed build with the button below or from the releases page.
When Android asks, allow installs from your browser (Settings → Install unknown apps). This is standard for apps distributed outside the Play Store.
Check the file's integrity: sha256sum persephona.apk should print 3f67040e…e58ec8bf.
Open the app, choose a passphrase, and your anonymous keypair is generated on-device. Share your QR code or an invite link to start chatting.
Download Persephona 2.6.0 for Android — free, open, and accountless.
Download APK