U App

The U App,
in development.

An early, actively-built version of the U.CASH super-app: a self-custodial wallet, end-to-end encrypted chat, and a distributed social square - one app, one seed, your keys. New builds land almost every day.

Get the latest build What's new
in development - install at your own risk Android 7.0+ 15 native coins reinstalls over prior builds

The download page always carries the newest build, its SHA-256 and the full version history.

U App
co.u.app
Total balance
UCASH & crypto
Ethereum + 18 L2s1 key
Bitcoin / SOL / TON1 seed
Chat / Square / Payin-app
QR code to open the U App download page
Open this on your phone, or scan to download

Self-custodial wallet

15 native coins - ETH + 25 EVM chains, BTC, SOL, SUI, XRP, TRX, XMR and more - every signature on your phone, keys sealed in hardware.

Encrypted chat

End-to-end encrypted messages, group chats, photos and voice - media is encrypted on your phone before it ever touches a server.

Distributed social

A public square with threads, hashtags, reactions and Lightning zaps - your identity is your key, on Nostr relays we run ourselves.

Every U App

Pay, Swap, Buy, Send, Portal and more open in-app with your wallet injected as the signer - one sign-in across the whole fleet.

In development: this is a pre-release build that changes daily - features appear and move, and things may break. Your keys never leave your phone and installs carry over, but enable unknown sources and install at your own risk. For install help and the full changelog, see the download page.