We have released version 2, which has more features in it. Its now a watch-only style wallet.
Users can now view wallet balances, and still get notifications on any activity (Even if the phone or app is off)
If you register your xpub (Like from Trezor) the wallet can also track all future transactions, and
there is also a way to get your next receive address(with QR Code) for HD wallets. So users can receive BTC into their wallet (Like Trezor, and other HD wallets) without needing access to the actual HD wallet. (Leave your hardware wallet in the safe, and still receive funds).

walletBouncer
Available on Apple App Store (https://itunes.apple.com/us/app/walletbouncer/id1369626879?mt=8)
We have development working on www, and android version, but not ready yet.