# Str8ts HD > Number puzzle game with unique 'straight' rule compartments, addictive like Sudoku. (iPhone/iPad app by Scanraid Ltd.) - Source: https://appshunter.io/ios/app/str8ts-hd/id1086373811 (this page in markdown: same URL + `.md`) - Developer: [Scanraid Ltd](https://appshunter.io/developer/1420000829) - Category: Games, Entertainment, Puzzle - Price: Free with in-app purchases - Rating: 4.10/5 from 7 App Store ratings · 30 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 19 MB - Languages: American English - Released: 2016-03-03 - Data updated: 2026-07-05 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/str8ts-hd/id1086373811/reviews.md ## What is Str8ts HD? Overplayed Sudoku? Try Str8ts - the best new number puzzle game. Str8ts is a number puzzle that is easy to learn, has simple rules, requires no math skills and is addictive as Sudoku. Few puzzles have the amount of depth and variety as Str8ts. You are encouraged to find multiple solving techniques as you progress between different levels of difficulties. Like Sudoku you need to place numbers uniquely in each row and column. But the dark blue cells add a new dimension. These divide the rows and columns into compartments which work like a poker hand - you have to make sure the numbers are like a 'straight', like 5,6,7 and 8 - but they can be in any order. There are clues to start you off and ensure the puzzle has just one solution. The clues in dark blue cells rule out that number in the row and column and can't be used as part of a straight. For this app we've splashed out on smart functionality, easy to use controls, help and an app tutorial, cool graphics and plenty of puzzles. All the puzzles created for this game were made by Andrew Stuart, who has published puzzles in many newspapers around the world. Features of Str8ts: - 4000 puzzles split between 4 levels of difficulty. 20 puzzles available for free. - unlimited depth of undo/redo actions. - two modes of entering a 'note' or a solution value. - best solution time stored for every puzzle. - step by step live tutorial explaining how to play the Str8ts App. - Rules and Controls screens explaining how to play Str8ts and how to use the app. Str8ts was successfully pitched by Jeff Widderich on Dragon's Den Canada (Season 5, Episode 8) and three dragons wanted to make a deal. ## Key features - Thousands of puzzles across 4 difficulty levels - Unique 'straight' rule compartments - Unlimited undo/redo functionality - Two input modes for notes and solutions - Best solution time tracking - Interactive tutorial and rules explanations ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Unlock 1000 puzzles | $2.99 | one-time | | Unlock 1000 puzzles | $2.99 | one-time | | Unlock 1000 puzzles | $2.99 | one-time | | Unlock 1000 puzzles | $2.99 | one-time | | Unlock 200 puzzles | $0.99 | one-time | | Unlock 200 puzzles | $0.99 | one-time | | Unlock 200 puzzles | $0.99 | one-time | | Unlock 200 puzzles | $0.99 | one-time | | Unlock 200 puzzles | $0.99 | one-time | | Unlock 200 puzzles | $0.99 | one-time | | Unlock 200 puzzles | $0.99 | one-time | | Unlock 200 puzzles | $0.99 | one-time | | Unlock 200 puzzles | $0.99 | one-time | ## Recent user reviews (10 of 30) All indexed reviews: https://appshunter.io/ios/app/str8ts-hd/id1086373811/reviews.md ### 2/5 — Satisfying Logic Puzzle BUT not working iOS 18.5 *2025-07-09, version 1.0* To the publisher: please update to new iOS, this had been my favorite puzzle! (had a 5-star rating) Better then mindless "brain exercise" apps, this is challenging, really makes you think -- and in variety of ways. As difficulty is raised, so too do you need to think of new methods to solve. The thinking is fun (not just an exercise). This particular puzzle gives a wonderful sense of satisfaction when a solution is reached!! ### 4/5 — Enjoyable game *2025-01-03* After completing 5 games at one level the next game will not unlock. Please help **Developer response:** Hi, thanks for reaching out, please try again, issue should be fixed. ### 5/5 — Macht einfach Spass *2024-12-25* Ich finde Str8ts super, tuts auf allen iOS. Leider bin ich ferig :-( Kann ich alle (!) Rätsel zurück setzen und neu beginnen? ### 1/5 — Funktioniert nicht mehr *2024-11-11* Seit ein paar Wochen hängt sich die App auf und “stürzt” direkt ab. Spielen ist nicht mehr möglich. Schade. ### 1/5 — Hängt bei Level 5 *2024-08-06* In allen Schwierigkeitsstufen geht es nach Level 5 nicht mehr weiter. Seeeehr schade, da es eigentlich genau das str8ts ist, das ich wollte 😒 ### 1/5 — Geht nicht mehr unter iOS 17 *2023-12-29* Leider ist die App seit Update auf iOS 17 nicht mehr nutzbar. Verschwindet nach Auswählen des Spiels im Hintergrund und wenn man es wieder nach vorne bringt ist man wieder beim Auswahlbildschirm. Nutzlos. App Support reagiert nicht. ### 4/5 — Good game *2022-01-28* This is certainly an interesting game and with practice I have progressed to the Expert level. The ‘long hold’ function on a chosen number confirming it as solved could be could be more responsive, hence 4* only. ### 5/5 — Love this game!! *2021-03-12, version 1.0* Best game! Really makes you think! Sooo much more challenging and interesting than Sudoku. Only complaint, it sucks up time as I enjoy it so much. ### 4/5 — Fast.. Alles gut! Super Spiel! *2021-01-29* Leider ist für Kategorie „expert“ noch zu einfach zu lösen. Sämtliche Puzzle sind in 5-10 Minuten gelöst (ohne die Eingabe von Kandidaten) Wenn hier noch eine Stufe draufgeschlagen werden kann, so dass sie mehr den weekly extrem-str8ts entsprechen gibts volle 5 Punkte! ### 1/5 — Bug beim Kauf von Leveln *2020-05-02* Leider wurden beim Kauf von neuen Leveln auch bei Neustart die Level nicht freigeschaltet. Nachdem Ich also auf die Taste gedrückt habe, dass ich die Level auf einem anderen Gerät bereits freigeschaltet habe, stürzte die App ab. Nun stürzt die App immer ab, wenn ich auf diese gekauften Level clicke. ## Frequently asked questions about Str8ts HD ### What is Str8ts HD? Str8ts HD is a number puzzle game that challenges players to place numbers uniquely in rows and columns. It introduces a unique 'straight' rule in dark blue cells, requiring numbers within compartments to form a sequence like 5, 6, 7, 8, but in any order. It's designed to be easy to learn, requires no math skills, and offers significant depth and variety. ### How many puzzles are available? The app features a total of 4000 puzzles, divided into four distinct levels of difficulty. While 20 puzzles are available for free, additional puzzles can be accessed through in-app purchases. ### What are the key features of Str8ts HD? Key features include 4000 puzzles across 4 difficulty levels, unlimited undo/redo actions, two modes for entering notes or solutions, storage of best solution times, a step-by-step live tutorial, and detailed rules and controls screens. ### Is Str8ts HD free to play? The app offers a free version with 20 puzzles to start. Additional puzzles and content are available for purchase within the app, making it a 'free with in-app purchases' model. ### What makes Str8ts HD different from Sudoku? While both games involve placing numbers uniquely in rows and columns, Str8ts HD introduces dark blue cells that divide rows and columns into compartments. Within these compartments, numbers must form a 'straight' sequence (e.g., 5, 6, 7, 8), adding a unique strategic layer not found in traditional Sudoku. ## Version history (last 1 release) ### 1.0 — 2016-03-03 This app has been updated by Apple to display the Apple Watch app icon. ## Apps similar to Str8ts HD | App | Rating | Price | Category | | --- | --- | --- | --- | | [Guriddo: Stradoku Number Game](https://appshunter.io/ios/app/guriddo-stradoku-number-game/id1574107139) | 4.6 (140) | Free | Games | | [Kakuro: Number Crossword](https://appshunter.io/ios/app/kakuro-number-crossword/id1197071375) | 4.8 (1,735) | Free | Games | | [The Futoshiki](https://appshunter.io/ios/app/the-futoshiki/id1398126397) | 4.7 (765) | Free | Games | | [Number Join - Connect numbers](https://appshunter.io/ios/app/number-join-connect-numbers/id603551538) | 4.2 (203) | Free | Games | | [Tawa: Daily Skyscrapers Sudoku](https://appshunter.io/ios/app/tawa-daily-skyscrapers-sudoku/id6667121815) | 4.8 (20) | Free | Games | | [Str8ts Solver](https://appshunter.io/ios/app/str8ts-solver/id1452058653) | — | $2.99 | Games | ## More apps by Scanraid Ltd - [5 Daily Puzzles](https://appshunter.io/ios/app/5-daily-puzzles/id525760974) - [myeventflo](https://appshunter.io/ios/app/myeventflo/id6478886668) All apps by Scanraid Ltd: https://appshunter.io/developer/1420000829 --- *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 2026-07-05.*