Endless Numbers nails what it sets out to do: make early math approachable, adorable, and completely stress-free. The animations are genuinely delightful, and the no-pressure approach is perfect for building confidence in kids who might otherwise feel anxious about numbers.

The catch? You only get 5 numbers for free, so you'll need to pony up for Number Packs if your kid gets hooked (and they probably will). Also, while it's great for foundational skills, don't expect it to take your kid deep into math territory—Common Sense Education rightly calls the addition component 'woefully superficial.'

Still, for preschool and kindergarten, this is a solid, well-loved app that's been around since 2015 and still holds up. It's showing its age slightly in the interface, but the core experience remains charming. If you're looking for a gentle, effective intro to numeracy that won't stress out your kid (or you), this is a winner.