LJD Technology
Spacing Calc
PaidSiding a wall, shingling a roof, laying patio stones? One of the challenges is where to place the individual items so that they are all evenly...
iOS
CheX Challenger
FreeCheX was invented by George Robertson, a 97 year old computer enthusiast. He developed a paper based version of the game over a two year period...
iOS
Navigator - Aviation Instrument Training
PaidNavigator is an instrument training program for general aviation pilots. It operates in two modes.In learn mode you move and/or rotate the items on...
iOS