Felt for iPhone - Handwritten cards for the modern world
WeSwap - P2P currency exchange. Travel money on your smartphone.
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.
US Dollar Inflation Calculator - Calculate the value of the US dollar adjusted for inflation
Token - One ring to replace your keys cards and passwords
Orion Desktop - QML/C++-written cross-platform desktop client for Twitch.tv