Bjoern Gumboldt

Mental Cal - Brain Training

Games

MemoCube - Memorize the Magic Cube

Games

RGB Master - Color Mixing Puzzle

Games

TicTacMoji - Play Tic Tac Toe with Emoji

Games

Spoken Numbers

Games

Learn Turkish - Calendar 2020

Education

Learn Spanish - Calendar 2019

Education

Speffz Trainer - Improve Your BLD Solve Times

Games

Learn French - Calendar 2019

Education

Learn Italian - Calendar 2019

Education

Learn Hebrew - Calendar 2020

Education

Mental Cal - Brain Training

Games

Mental Cal - Brain Training

Games