# Big Sudoku > Challenging Sudoku puzzles with helpful tools and daily challenges. (iPhone/iPad app by Derrick Huth.) - Source: https://appshunter.io/ios/app/big-sudoku/id6794924187 (this page in markdown: same URL + `.md`) - Developer: [Derrick Huth](https://appshunter.io/developer/375731995) - Category: Games, Entertainment, Puzzle, Strategy - Price: Free with in-app purchases - Rating: 5.00/5 from 3 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 28 MB - Languages: American English - Released: 2026-09-04 - Data updated: 2026-09-16 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/big-sudoku/id6794924187/reviews.md ## What is Big Sudoku? Sudoku that actually lasts. Samurai Sudoku and 16×16 "Super" Sudoku for when you want a puzzle that takes more than a few minutes — and classic 9×9 Sudoku for when you just want a quick one. These are proper puzzles. The Samurai and Super Sudokus come in four levels of difficulty and none of them are trivial. If you complete one, you will have genuinely solved it. There are no cheats and no hints to carry you past a square you're stuck on. The 9×9 Sudokus come in the same four levels, from a gentle warm-up to genuinely fiendish. THREE WAYS TO PLAY • 9×9 — the classic, quick and satisfying • Samurai — five overlapping 9×9 grids for a much longer solve • 16×16 "Super" — a giant grid using numbers and letters (0–F) HELP WITH THE LEGWORK, NOT THE THINKING The app takes care of the bookkeeping so you can concentrate on the puzzle: • Auto pencil marks that fill in and update every possible number for each square • Highlight every square a chosen number could go in, so patterns jump out But nothing here shortcuts the mental process — the solving is still all yours. A NEW CHALLENGE EVERY DAY • A fresh daily puzzle for each of the three styles, every single day • Build and protect completion streaks, and earn streak freezes as you go • Over 1,800 puzzles across dozens of packs, plus the daily challenges BUILT FOR HOW YOU PLAY • Everything auto-saves, so keep several puzzles on the go at once • Play completely offline — no connection needed • Light and dark themes • Made for pen-and-paper traditionalists too: share an image of any puzzle to print and solve the hard way, with no on-screen assistance BIG PUZZLES, ANY SCREEN Because these grids are large, the app is at its best on a tablet or a large-screen phone. But every grid pinch-zooms, so with a little patience you can play on almost any device. An optional ad-free purchase removes ads entirely. Purchases are subject to Apples Standard Terms & Conditions which can be viewed here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Multiple Sudoku grid sizes (9x9, Samurai, 16x16) - Four difficulty levels per puzzle type - Auto pencil mark feature - Daily puzzles for all styles - Streak tracking and rewards - Offline play - Light and dark themes ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Ad Free 1 Year | $9.99 | per year | | Ad Free 1 Month | $0.99 | per month | ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/big-sudoku/id6794924187/reviews.md ### 5/5 — Fun and Challenging Sudoku Experience *2026-09-13* Big Sudoku is a fun and engaging app for anyone who enjoys puzzle games. The interface is easy to understand, and the gameplay feels smooth and enjoyable. It's a great way to challenge your mind and pass the time. Definitely worth trying! ### 5/5 — fun *2026-09-11* Very fun sudoku puzzles and the app overall is super easy to use and also extremely entertaining and enjoyable especially when u don't have any wifi ### 5/5 — A fun challenge *2026-09-11* Wow, I've never attempted a sudoku game this big before!! ## Frequently asked questions about Big Sudoku ### Does Big Sudoku have ads? Yes, Big Sudoku contains advertisements. An optional in-app purchase is available to remove ads entirely. ### What types of Sudoku puzzles are available in Big Sudoku? Big Sudoku offers classic 9x9 puzzles, Samurai Sudoku (five overlapping 9x9 grids), and 16x16 "Super" Sudoku grids that use numbers and letters (0-F). ### Can I play Big Sudoku offline? Yes, Big Sudoku can be played completely offline, meaning no internet connection is needed to enjoy the puzzles. ### Does Big Sudoku offer hints or cheats? No, Big Sudoku does not offer cheats or hints to help you past a stuck square. The app assists with bookkeeping, not with the solving process itself. ### How often are new puzzles added to Big Sudoku? Big Sudoku provides a fresh daily puzzle for each of its three styles every single day. There are also over 1,800 puzzles available across various packs. ### Is Big Sudoku suitable for all ages? Big Sudoku is rated for ages 4 and up, making it accessible for a wide range of players interested in logic puzzles. ### What devices is Big Sudoku best played on? Due to the large grid sizes, Big Sudoku is at its best on a tablet or a large-screen phone. However, all grids pinch-zoom, allowing play on most devices with some patience. ### How does Big Sudoku help with solving without giving away answers? The app features auto pencil marks that fill in and update possible numbers for each square. It can also highlight squares where a chosen number could go, helping patterns to emerge. ## Version history (last 3 releases) ### 1.1.1 — 2026-09-15 Bug fix for the settings screen. ### 1.1.0 — 2026-09-09 Advertising added and in app subscriptions. ### 1.0 — 2026-09-04 No release notes. ## More apps by Derrick Huth - [The Big Sudoku](https://appshunter.io/ios/app/the-big-sudoku/id1064047574) All apps by Derrick Huth: https://appshunter.io/developer/375731995 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-16.*