GontaSmith

Feature- The number of the answer buttons is variable from 1 to 14.- The "R" button is a Reset button.- Correct/Wrong sound effect and screen view is …

Draw 3D boxes to compare the size of many objects.For example, you can compare new gadget with another one.Share the Image with SNS etc...免費玩Size Comp …

Feature- Scientific Calculator formula input by text.- Calculate with physical units is available (for dimensional analysis).- Unit conversion of the …