Multiple Difficulty Levels
Choose the challenge, from a gentle warm-up to a puzzle that fights back.
Overview
What It Is.
Sudoku is a focused take on the classic number puzzle: a clean board, clear controls, and nothing on screen competing for attention.
The app is built around how people actually play — short sessions on a phone, usually one-handed and often interrupted. Difficulty scales from a relaxed first game to a demanding one, and a puzzle can be left and picked up again later.
Features
Key Features
What the app actually does.
Hints
A nudge in the right direction when a board stops making sense.
Lives
A limited number of mistakes keeps every placement deliberate.
Progress Tracking
Leave a puzzle mid-solve and pick it up again where you left it.
Statistics
A record of games played and completion times, so improvement is visible.
Clean User Interface
A calm, uncluttered board built for one-handed play on any screen size.
Screenshots
Inside The App
A look at the interface, screen by screen.
Technology
Built With
The stack behind Sudoku.
- Kotlin
- Jetpack Compose
- Android
- Material Design
Development
How It Was Built
From the first sketch to a release-ready build.
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01
The idea
Start from a puzzle everyone already knows, and ask a narrower question: what would it feel like if nothing on screen competed with the board?
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02
Product design
Board legibility came first — cell size, number weight and selection feedback were tuned on real devices before any polish was added.
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03
Development
Built natively for Android, with the game logic kept separate from the interface so both can change independently.
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04
Testing
Play-tested across screen sizes for readability and one-handed reach.
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05
Launch
Prepared for release with store assets, icon and screenshots, and a versioned build.