# Tectonic \| Logic puzzles — A fun Sudoku alternative > A logic puzzle game, similar to Sudoku, with unique number placement rules. (iPhone/iPad app by Keesing Digital B.V..) - Source: https://appshunter.io/ios/app/tectonic-logic-puzzles/id1628584293 (this page in markdown: same URL + `.md`) - Developer: [Keesing Digital B.V.](https://appshunter.io/developer/1539420313) - Category: Games, Education, Board, Puzzle - Price: Free with in-app purchases - Rating: 4.80/5 from 5 App Store ratings - Age rating: 4+ - Requires: iOS 11.0 · 162 MB - Languages: American English, Dutch, French (France), German (Germany), Italian, European Portuguese, European Spanish, Swedish - Released: 2022-07-22 - Data updated: 2026-08-22 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/tectonic-logic-puzzles/id1628584293/reviews.md ## What is Tectonic | Logic puzzles? Tectonic (a.k.a. suguru puzzle, jigsaw sudoku or number blocks) is a fun and free logic puzzle. The perfect alternative for the popular sudoku. The puzzles start of simple to help you master the number logic and soon you won't be able to let this addictive game go. Just like with sudoku you complete the board by filling in the missing numbers. The number of cells in each region determine how many numbers should be placed. Do you use hints or do you accept the logic problem challenge and get to the top of the leader board? Tectonic gameplay rules Tectonic rule #1 is that a cell has to contain a different number than its neighbouring cells. This applies to both neighbouring cells in the same region and those in adjacent regions. Tectonic rule #2 is that the number you drag to a region can not be higher than the number of cells in that region. Tectonic logic puzzles features -- Fun sets of Tectonic logic puzzles with increasing difficulty. Starting with a 4x4 grid and gradually dialling up the difficulty to make sure you continue to be challenged. -- Various shapes challenging you to continue to fill the puzzle grid with more and more challenging board set ups. Fun for adults and kids alike! -- Compete against other players in the leader board and beat their game scores. -- Relaxing music and design to comfortably tune out while playing. -- Addictive gameplay just like sudoku. Play this logic grid puzzle when you are bored or want to train your brain. Become a Tectonic pro Take your time with filling in the board. The challenge is in playing all the levels! Using as few hints as possible while completing the fun logic puzzles. The ideal sudoku alternative For those logic puzzle players out there that are looking for a new puzzle challenge, Tectonic is the app to play! With changing shapes like jigsaw soduku, but even more variety from changing numbers. So not just 1 through 9. Tectonic is the ideal logic puzzle that requires you to engage your brain but still allowing you to relax as you progress through the levels. The ideal sudoku alternative! This app contains ads and in-app-purchases. ## Key features - Progressively difficult logic puzzles - Varied grid shapes - Global leaderboards - Relaxing music and design - Brain training gameplay - Sudoku alternative ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Gems Pack Extra Large | $5.99 | one-time | | Gems Pack Large | $4.99 | one-time | | Gems Pack Medium | $2.99 | one-time | | Gems Pack Small | $0.99 | one-time | | No Adverts | $2.99 | one-time | | No ads 30% discount | $1.99 | one-time | ## Frequently asked questions about Tectonic | Logic puzzles ### What are the main rules of Tectonic? Tectonic requires that a cell contains a different number than its neighboring cells, both within and across regions. Additionally, the number dragged to a region cannot be higher than the number of cells in that region. ### How does Tectonic compare to Sudoku? Tectonic is a Sudoku alternative that uses similar logic but with different rules and number variations. Instead of just 1-9, it offers more variety in numbers and changing grid shapes, providing a fresh challenge. ### Does Tectonic have ads? Yes, Tectonic contains advertisements. These ads are part of the free experience for users. ### Can I play Tectonic offline? The provided data does not specify if Tectonic can be played offline. However, many logic puzzle games offer offline play for their core puzzles. ### Is Tectonic suitable for all ages? Tectonic has an age rating of 4+, making it suitable for children and adults alike. The puzzles start simple and gradually increase in difficulty. ### How often is Tectonic updated? The latest version of Tectonic was released on July 5, 2023. While update frequency isn't explicitly stated, this indicates recent ongoing support and development. ### What devices does Tectonic support? Tectonic is available on iPhone, iPad, and iPod. It is designed for iOS devices. ### Are there in-app purchases in Tectonic? Yes, Tectonic offers in-app purchases. These may include hints or other features to enhance gameplay. ## Version history (last 5 releases) ### 1.0.17 — 2023-07-05 Bug fixes for later levels to make sure you can keep on playing! ### 1.0.15 — 2022-09-19 Various performance improvements and even more free levels to play! ### 1.0.14 — 2022-09-12 Now with a weekly leaderboard to win great prizes! ### 1.0.13 — 2022-08-24 Performance & general app optimizations ### 1.0.11 — 2022-08-13 Performance & general app optimizations ## More apps by Keesing Digital B.V. - [Puzzle Pal: Logic & Word Games](https://appshunter.io/ios/app/puzzle-pal-logic-and-word-games/id1539420311) - [Ball Sort: Classic Puzzle Game](https://appshunter.io/ios/app/ball-sort-classic-puzzle-game/id6444150205) All apps by Keesing Digital B.V.: https://appshunter.io/developer/1539420313 --- *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 2026-08-22.*