WeSwap - P2P currency exchange. Travel money on your smartphone.
Boatsetter - Rent a boat, with or without a captain. Powerboats and sailboats, anywhere in the country.
US Dollar Inflation Calculator - Calculate the value of the US dollar adjusted for inflation
Sailo - Airbnb for boats
Orion Desktop - QML/C++-written cross-platform desktop client for Twitch.tv
GetMyBoat - Book boat rentals, charters, tours, and lessons in 171 countries around the world.