Meishi

Meishi is a mobile contacts app solving data sovereignty in personal contact management. Users retain full control over their data, kept current via peer-to-peer sync. It employs end-to-end encryption with the Signal Protocol for private transmission, using a hybrid P2P-client-server setup—P2P for sensitive info, server only for public search. Access can be granted/revoked anytime; no data storage or monetization by the platform.