Hardfolio is a cryptocurrency portfolio app based on hardwarewallets. You can find it on the Google Play Store, and the Microsoft Store. Hardfolio is around 60%+ open source. It is powered by my open source hardwarewallet libraries, and my crypto library CryptoCurrency.Net. While maintaining the libraries that Hardfolio is based on has taken up most of my time, Hardfolio remains my overarching driver. The hard work that has gone in to USB/Hid integration is being woven in the next version of Hardfolio and should make Hardfolio far more stable and comprehensive. The plan is to completely open source Hardfolio.