palimpsest
In-app purchases
Everyone
info
10+
Downloads
About this app
Private messaging where even we can't read your chats.
Palimpsest is an end-to-end encrypted messenger built for people who want real privacy—not just a lock icon. Messages, attachments, reactions, and calls are encrypted on your device before they ever leave it. We operate a transient mailbox relay: encrypted envelopes are forwarded to recipients and removed from our servers after delivery. Your conversation history lives on your device, not in our cloud.
WHY PALIMPSEST?
• True end-to-end encryption — X25519 key exchange, XSalsa20-Poly1305, and Ed25519 signing. Zero-knowledge by design.
• Keys stay on your device — Your private encryption keys never leave your phone in plaintext.
• No phone number required — Sign in with email. Connect via a unique 6-word key or QR code.
• Transient relay, not an archive — We forward encrypted traffic; we don't hoard your chats on our servers.
• Local-first — Chats load instantly from encrypted storage on your device. Sync when online, retry when offline.
• Lock it down — App PIN, biometrics, per-chat PIN lock, and auto-lock timers.
• More than text — Voice messages, photos, video attachments, reactions, replies, and read receipts.
• Encrypted calls — Voice and video calls over WebRTC with privacy-preserving push alerts (no message content in notifications).
• You control your contacts — Accept or decline contact requests. Block users. No public phone-book discovery.
HOW IT WORKS
1. Sign in with your email and a one-time verification code.
2. Set a device PIN to protect your local keys and decrypted data.
3. Share your unique word key or QR code so trusted contacts can reach you.
4. Chat, call, and share media — all encrypted end-to-end.
SECURITY YOU CAN VERIFY
Palimpsest uses industry-standard cryptography: X25519 for key agreement, NaCl secretbox for symmetric encryption, and Ed25519 for digital signatures. Push notifications are intentionally generic—they never include message plaintext. Optional encrypted key backup stores PIN-locked ciphertext on our servers; we cannot restore your keys without your PIN.
WHAT WE DON'T DO
• No ads
• No selling your data
• No reading your message content—we can't decrypt it
• No requiring a phone number or SIM card
IMPORTANT TO KNOW
Because Palimpsest is end-to-end encrypted, we cannot recover a lost PIN, lost device, or undelivered messages. This is inherent to strong encryption, not a bug. Store your recovery phrase securely if you enable account backup.
Account deletion: visit palimpsest.app/delete-account or contact legal@palimpsest.app.
COMING SOON
Tor routing, disappearing messages, and decoy PIN are on our roadmap and not yet available in this release.
Palimpsest v1.0.0 • X25519 + NaCl • Ed25519
Your words belong to you—not to us. We provide the pipes; you hold the keys.
Palimpsest is an end-to-end encrypted messenger built for people who want real privacy—not just a lock icon. Messages, attachments, reactions, and calls are encrypted on your device before they ever leave it. We operate a transient mailbox relay: encrypted envelopes are forwarded to recipients and removed from our servers after delivery. Your conversation history lives on your device, not in our cloud.
WHY PALIMPSEST?
• True end-to-end encryption — X25519 key exchange, XSalsa20-Poly1305, and Ed25519 signing. Zero-knowledge by design.
• Keys stay on your device — Your private encryption keys never leave your phone in plaintext.
• No phone number required — Sign in with email. Connect via a unique 6-word key or QR code.
• Transient relay, not an archive — We forward encrypted traffic; we don't hoard your chats on our servers.
• Local-first — Chats load instantly from encrypted storage on your device. Sync when online, retry when offline.
• Lock it down — App PIN, biometrics, per-chat PIN lock, and auto-lock timers.
• More than text — Voice messages, photos, video attachments, reactions, replies, and read receipts.
• Encrypted calls — Voice and video calls over WebRTC with privacy-preserving push alerts (no message content in notifications).
• You control your contacts — Accept or decline contact requests. Block users. No public phone-book discovery.
HOW IT WORKS
1. Sign in with your email and a one-time verification code.
2. Set a device PIN to protect your local keys and decrypted data.
3. Share your unique word key or QR code so trusted contacts can reach you.
4. Chat, call, and share media — all encrypted end-to-end.
SECURITY YOU CAN VERIFY
Palimpsest uses industry-standard cryptography: X25519 for key agreement, NaCl secretbox for symmetric encryption, and Ed25519 for digital signatures. Push notifications are intentionally generic—they never include message plaintext. Optional encrypted key backup stores PIN-locked ciphertext on our servers; we cannot restore your keys without your PIN.
WHAT WE DON'T DO
• No ads
• No selling your data
• No reading your message content—we can't decrypt it
• No requiring a phone number or SIM card
IMPORTANT TO KNOW
Because Palimpsest is end-to-end encrypted, we cannot recover a lost PIN, lost device, or undelivered messages. This is inherent to strong encryption, not a bug. Store your recovery phrase securely if you enable account backup.
Account deletion: visit palimpsest.app/delete-account or contact legal@palimpsest.app.
COMING SOON
Tor routing, disappearing messages, and decoy PIN are on our roadmap and not yet available in this release.
Palimpsest v1.0.0 • X25519 + NaCl • Ed25519
Your words belong to you—not to us. We provide the pipes; you hold the keys.
Secure • Encrypted • Private
Updated on
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 partiesLearn more about how developers declare sharing
- This app may collect these data typesPersonal info and Device or other IDs
- Data is encrypted in transit
- You can request that data be deleted
What’s new
New!:
-Arabic language support!
-Enhance UI
-Improve stability
-Improve chat loading speed
-Arabic language support!
-Enhance UI
-Improve stability
-Improve chat loading speed
App support
About the developer
MOHAMMAD SHUKRI ABDUL KAREEM ARABYAT
conseder0nato@gmail.com
al-salt/Al-Ayzariya/Al-Ayzariya Street
12
Salt 19110
Jordan