Yellow Danger (free)

Help a scientist escape from their laboratory by advancing through 49 rooms filled with puzzles. The puzzles involve pushing and stacking various items, activating pressure plates and levers, catching moving platforms and elevators, and collecting items or pushing them on conveyor belts. There's also plenty of jumping over obstacles, climbing walls and building bridges. All the while avoiding falling to your death or being eaten by monsters.

There is also a paid version of the app called Yellow Danger which is completely ad-free.