# Classic Sudoku by Logic Wiz > Beautiful handcrafted puzzles. Logic & brain training game. Sudoku (Soduko). Canonical page: [https://chrome-stats.com/d/com.uvmlab.classic](https://chrome-stats.com/d/com.uvmlab.classic) ## Overview - **ID:** `com.uvmlab.classic` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Logic-Wiz - **Category:** GAME\_PUZZLE - **Downloads:** 176,616 - **Rating:** 4.77 / 5 (2,061 ratings) - **Version:** 4.5.2 - **Last updated:** 2026-09-14 - **First published:** 2022-11-28 - **Publisher country:** US - **Size:** 122 MB - **Data as of:** 2026-09-19 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.uvmlab.classic) - **Website:** [https://logic-wiz.com/](https://logic-wiz.com/) - **Privacy policy:** [https://www.logic-wiz.com/privacy.html](https://www.logic-wiz.com/privacy.html) ## Description Classic Sudoku by Logic Wiz is a beautifully designed logic and brain training game featuring handcrafted puzzles. With six levels from Beginner to Master, it caters to novices and experts alike. The app offers smart hints, a user-friendly interface, and tools to help players improve their solving skills. Highlights include unique solutions to puzzles, cloud synchronization across devices, weekly challenges, multiple puzzle tracking, and both light and dark themes. Features like multiple pencil mark styles, error modes, performance tracking, and unlimited undo/redo enhance the experience. This Sudoku app is an engaging way to sharpen your logic and enjoy challenging puzzles on mobile phones and tablets. ## Rankings - #169,836 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_CUSTOM_AUDIENCE` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.ACCESS_WIFI_STATE` - `android.permission.FOREGROUND_SERVICE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.USE_BIOMETRIC` - `android.permission.USE_FINGERPRINT` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.amazon.privacypass.ATTEST` - `com.anddoes.launcher.permission.UPDATE_COUNT` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.google.android.c2dm.permission.RECEIVE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.AD_ID` - `com.google.android.providers.gsf.permission.READ_GSERVICES` - `com.hihonor.android.launcher.permission.CHANGE_BADGE` - `com.hihonor.android.launcher.permission.READ_SETTINGS` - `com.hihonor.android.launcher.permission.WRITE_SETTINGS` - `com.htc.launcher.permission.READ_SETTINGS` - `com.htc.launcher.permission.UPDATE_SHORTCUT` - `com.huawei.android.launcher.permission.CHANGE_BADGE` - `com.huawei.android.launcher.permission.READ_SETTINGS` - `com.huawei.android.launcher.permission.WRITE_SETTINGS` - `com.majeur.launcher.permission.UPDATE_BADGE` - `com.sec.android.provider.badge.permission.READ` - `com.sec.android.provider.badge.permission.WRITE` - `com.sonyericsson.home.permission.BROADCAST_BADGE` - `com.sonymobile.home.permission.PROVIDER_INSERT_BADGE` - `com.uvmlab.classic.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` - `com.vivo.notification.permission.BADGE_ICON` ## Review summary Classic Sudoku by Logic Wiz is widely praised for its feature-rich toolkit (coloring, multiple note styles, candidate markers, and a built-in strategy guide), strong puzzle variety, and an excellent UI that makes solving easy and enjoyable. The expert-level puzzles offer solid training on techniques like X-wing and Skyscraper. However, ads are the dominant pain point, with intrusive, mid‑puzzle interruptions and occasional load problems. Some users opt to purchase premium to remove ads. Overall, the app excels in depth and quality despite the ad experience. ### Pros - Feature-rich toolset for solving Sudoku (coloring options, multiple note styles, candidate markings, and a strategy guide). - Wide range of difficulties and thousands of puzzles; expert level helps train techniques such as X-wing, Skyscraper, and W-wing. - Strong UI/UX and smooth gameplay; intuitive pencil marks and note features. - Helpful learning aids and hints; strategy guide available in settings. - Premium option to remove ads, which many users view as worthwhile. ### Cons - Ads are intrusive and frequent, including mid-puzzle interruptions. - Ads loading issues and occasional black screens when ads fail to load or are blocked. - Some users feel pressured to buy premium to remove ads; the ad-free experience is a paid expectation. ## Similar extensions and apps - [Killer Sudoku by Logic Wiz](https://chrome-stats.com/d/com.uvmlab.killer) — 144,522 users, 4.72 / 5 - [Sudoku: Variants & Classic](https://chrome-stats.com/d/com.uvmlab.usudoku) — 1,073,131 users, 4.53 / 5 - [Sudoku - Number Logic Game](https://chrome-stats.com/d/com.nomadicratio.sudoku) — 4,350 users, 1.00 / 5 - [Classic Sudoku: Logic Puzzle](https://chrome-stats.com/d/rc4812.android.classicSudoku) — 12,138 users, 3.80 / 5 - [Sudoku Logic Master](https://chrome-stats.com/d/com.shinemedia.sudoku) — 3,545 users - [Sudoku - Logic Puzzles Sudoku](https://chrome-stats.com/d/org.qtproject.hexsudoku) — 1,331,414 users, 4.75 / 5 - [Classic Sudoku: Logic Puzzle](https://chrome-stats.com/d/com.kbemanagmentllc.sudoku) — 7 users - [Sudoku: Brain Logic Puzzles](https://chrome-stats.com/d/rc4812.androidsudoku) — 29,367 users - [Sudoku Master: Logic Puzzle](https://chrome-stats.com/d/com.soloras.sudoku) — 7 users - [Indian Sudoku](https://chrome-stats.com/d/com.radhika.indiansudoku) — 24 users - [Classic Sudoku Puzzle](https://chrome-stats.com/d/sudoku.brain.game.puzzle) — 5,228 users - [Sudoku - Logic Puzzles](https://chrome-stats.com/d/com.works.timeglass.sudoku) — 338,497 users, 4.55 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.uvmlab.classic)