Sudoku a Day vs Andoku Sudoku 3
We make Sudoku a Day. This comparison uses the linked official product listings, checked on 11 September 2026. It is a guide to choosing features, not an independent scored review.
This choice starts with your device and the kinds of puzzles you want. Andoku Sudoku 3 is an Android option with variants and learning tools. Sudoku a Day offers classic daily play in the browser, an iPhone app and printable downloads.
Platform and puzzle choices
| Your priority | Sudoku a Day | Andoku Sudoku 3 |
|---|---|---|
| Phone app | iPhone app; the website also offers browser play. | Google Play listing for Android phones and tablets. |
| Puzzle selection | Classic Sudoku with five levels in the browser game. | The listing describes nine difficulty levels and multiple game variations. |
| Learning and notes | Beginner course and existing web lessons. | The listing describes detailed instructions, notes, assistance and entering your own puzzles. |
| Payment | The iPhone app is ad-free with optional in-app purchases. | Google Play lists ads and in-app purchases; review the available offer on your device. |
| Paper practice | Free website PDF downloads. | Check the app's current tools against your needs; this guide does not assume a printable export feature. |
When Andoku is worth trying
If you use Android and want several puzzle variations or to enter a puzzle you already have, investigate those tools in Andoku. Check how notes and assistance work on the grid you choose. Nine labels give you more selection steps, but do not directly correspond to another publisher's five levels.
When Sudoku a Day fits
Try our browser puzzle if you want to start without a phone-app installation. Choose our weekly printable pack for paper solving with a separate answer page. Our variant guides explain different rules; the current browser game plays classic Sudoku.
A short trial checklist
Choose a puzzle, add and remove notes, try the available help and check what a purchase unlocks. If offline access or transferring progress matters, test those functions in the version you intend to use before relying on them.
Compare Sudoku.com, see the full app guide, or start an Easy browser puzzle.