YOYO Private Chat

YOYO Private Chat is a simple private messaging app for one-to-one encrypted text communication.

Messages are encrypted on your device before they are sent. The server stores encrypted message payloads only so your contact can receive them when they come online. Private keys stay on your device.

Free users can use basic encrypted chat. Pro subscriptions increase service limits such as contact capacity and offline encrypted-message retention. Pro does not provide stronger encryption than the free tier.

Included:
- One-to-one encrypted text chat
- Username contact requests
- Local encrypted history
- Offline encrypted-message relay
- Block, report, and delete account
- Privacy-preserving notification design
- English, Japanese, and Chinese UI

Not included:
- Ads
- Public fuzzy search
- Group chat
- Images, files, voice, or video
- Read receipts, typing status, or online status

Security note: YOYO Private Chat is designed to keep plaintext message bodies off the server, but no app can promise absolute security. Keep your device and password safe.