Unlocking combination locks by simulating real mechanisms. Spin the dial to input combinations and open the by tapping or swiping the shackle. Receive hints when common mistakes occur, such as forgetting to rotate the dial fully.
by James Randolph★ 4.81,992 ratingsEducation$0.99Data updated 2026-10-30
Practice math operations with shapes and fractions
Practice arithmetic operations including addition, subtraction, multiplication, and division, with mixed problems and fraction support. Learn number tables and basic math with shape-based addition and subtraction.
The app demonstrates correct installation techniques for various seals using film, animation, and documentation. It covers hydraulic seals, radial oil seals, and mechanical face seals, including visual inspection and common mistakes.
