Multiplication
To improve my Android development skills, I created a reference app by the book. It turned into an app for learning the multiplication table — aimed at children around 7 to 11 years old.
I looked at what was already available on the Play Store and found most apps in this space to be confusing and poorly designed. Despite that, they had high ratings and millions of downloads. So I figured I could make something much better and clearer than those.
So here it is: Multiplication
Idea, programming, design — everything by me.
If you like the app, I’d really appreciate a rating on the Play Store — it helps a lot!
I decided to charge 9 SEK to unlock the full version, but you can use most of the tables without paying. That small fee is to help compensate for the time I’ve put into it, and to support future development of my own apps.
The app is now also available in several languages — but it works great even if you can’t read yet, making it suitable for younger children or early learners.
Technologies used:
Kotlin, Jetpack Compose, Dependency Injection (Dagger Hilt), Compose Navigation, SQLDelight, MVVM, Timber, Material Design 3, Datastore, Android Billing.
I’ve tried to follow Google’s recommended architecture patterns.
Also includes Firebase Crashlytics, Proguard, and an adaptive design (with different layouts for tablets and phones).
