Boilerplate
50 words
Skudo is a free, ad-free Sudoku app with Classic & Killer modes, a real-time AI rival that races you offline, daily challenges, a weekly league, and co-op play with friends. It has no ads, no in-app purchases and no sign-up requirement, and runs on iOS and Android in English and Vietnamese.
100 words
Skudo is a free, ad-free Sudoku app with Classic & Killer modes, a real-time AI rival that races you offline, daily challenges, a weekly league, and co-op play with friends. Its distinguishing feature is an on-device bot that solves the same grid alongside the player in real time — it speeds up on easy cells, hesitates on hard ones, and makes mistakes, so a match feels like playing a person rather than a timer. Skudo covers three board sizes and four difficulty levels, explains the technique behind every hint instead of just revealing an answer, and runs its solo modes entirely offline. It contains no ads and no in-app purchases, supports VoiceOver and TalkBack, and lets players export or delete their data at any time.
Fact sheet
| Product name | Skudo |
|---|---|
| Category | Puzzle game — Sudoku |
| Platforms | iOS · Android · Web |
| Price | Free — no ads, no in-app purchases |
| Modes | Classic · Killer |
| Board sizes | 9×9 · 6×6 · 4×4 |
| Difficulty levels | Easy · Medium · Hard · Expert |
| Multiplayer | Private rooms by code · Versus · Co-op |
| AI rival | Real-time bot, on-device, works offline |
| Weekly league | 6 tiers: Bronze → Master |
| Languages | English · Tiếng Việt |
| Accessibility | VoiceOver · TalkBack |
| Privacy | GDPR/PDPA · data export · account and data deletion |
| Bundle ID | app.thopd.sudoku |
| Website | https://skudo.app |
| Download | https://play.google.com/store/apps/details?id=app.thopd.sudoku |
What makes Skudo different
- An on-device AI rival that solves alongside the player in real time and works with no connection — rare in this category.
- Classic and Killer in a single free app, where competitors usually split them into two paid products.
- Hints that name and explain the solving technique, so the app teaches instead of just revealing answers.
Using the Skudo name and logo
- Write the name as "Skudo" — capital S, the rest lowercase.
- Brand colour: #7B4060 on a #F8F4FC background.
- Do not write "SKUDO", "skudo", "Skudo Sudoku" or "Skudo App".
- Do not recolour the logo, stretch it, or add effects to it.
Press contact
For interviews, review copies or additional assets, send a message through the support page and mention that you are press.
Start your streak today
Free, ad-free Sudoku with a live AI rival. Classic & Killer. Plays fully offline.