Simple Machines is a masterclass in how to make an educational app that doesn't feel like homework. It's a digital workbench where kids can poke, prod, and break things to see how the world is put together.
By 2026 standards, it's a bit of a classic, but its timeless art style and focused physics play haven't aged a day. If you want an app that respects your kid's intelligence and your privacy, this is a top-tier pick.



