Programming Hero - Personalized, fun, and interactive way to learn programming
F*ckOff - Tell YouTube ads to f*ck off
uEye - uEye is free, fun, and an interactive way to learn UI design.
Amplosion - Google's AMP links are super annoying.
Word Tetris - Tetris with words
Crystal - Crystal shows you the best way to communicate with any prospect, customer, or coworker based on their unique personality.