Numi App - Numi is a beautiful text calculator for Mac.
skribbl - Word guessing based on drawing.
SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
LetsDraw.It - Guess and Draw, Drawing Battle, Pictionary, Copy picture - online drawing games where you can compare your skill with others.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
gartic.io - Draw, guess, and win!