Address book for bitcoin addresses. Also supports litecoin.
Scan bitcoin or litecoin addresses into your phone, to easily transfer them from one computer to another. Always have your addresses with you to receive payment wherever you go. (You can also save other people's addresses).
Note: this is NOT a wallet, it will not show your address balances or allow you to spend the coins.
This app operates completely offline.
Open source: https://github.com/ogunden/bitcoin-address-book