kukumber:

Kukumber is an iOS math tutor app built for children roughly 5 to 9 years old. A cartoon mascot named Nom walks kids through arithmetic in a chat-style format, much like a messaging app, so practice feels like a conversation instead of a worksheet. It covers the core primary school skills: counting, addition, subtraction, multiplication, and division. The official library holds more than 1,000 lessons.

The app pairs each concept with an explanation before and after the exercise. When a child slips up, Nom points out the step that went wrong rather than just marking the answer incorrect. That feedback loop is the main reason parents look at Kukumber instead of a plain daily math practice app.

The biggest limits are the platform and the language. Kukumber runs only on iPhone and iPad through the App Store, so Android users are out of luck, and there's no browser version. The free tier is real, but the full lesson path and rewards sit behind a paid subscription. There's also no public API, so you can't wire it into a school system.

Getting Started

1. Download Kukumber from the App Store on an iPhone or iPad running iOS 16 or later.
2. Open the app and let your child meet Nom. The first session sets a rough starting level from a few warm-up questions.
3. Start the daily session. Nom introduces a concept, then gives a short set of exercises with clear explanations before and after each one.
4. Finish the day's goal, roughly 20 minutes of practice, and your child unlocks short math games and stickers as rewards.
5. Subscribe to Kukumber Premium if you want the full lesson library and rewards once the free trial ends.