Keep track of Bitcoin addresses and their balances.
BTC Balance Watcher helps you keep track of bitcoin addresses and their BTC / USD balances. Your friend's stack, personal address or any other address on the blockchain - Bitcoin Balance Watcher helps you keep track of their balance.
Bitcoin Balance Watcher does not share, require or work with private data, keys or cryptographic elements. It downloads data from the blockchain and display publicly available balances. Bitcoin is a cryptocurrency and worldwide payment system with no central entity or company that controls it. It is a decentralized network.
Learn more on Bitcoin:
https://en.wikipedia.org/wiki/Bitcoin