Neal.fun - Hi!
SpaceVR - Explore space with Oculus Rift (pre-launch)
Spacetime - Work hour and time zone management for distributed teams.
MyLambo - Choose your favourite Crypto coin and figure out the time you take to get your Lambo.
TruSat - Track satellites to reduce space debris
Chamath Abs Calculator - Calculate how long will you take to get SixPAC ab'ed