WeSwap - P2P currency exchange. Travel money on your smartphone.
Penny - Penny is a personal finance app that takes the pain out of keeping track of your finances.
US Dollar Inflation Calculator - Calculate the value of the US dollar adjusted for inflation
MoneyWiz - The cross-platform finance app with sync. For Windows, Mac, iOS and Android.
Orion Desktop - QML/C++-written cross-platform desktop client for Twitch.tv
Kualto - Personal finance tool that forecasts your cash flow