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.

What’s New

Version 1.0

This update is signed with Apple’s latest signing certificate. No new features are included.

Ratings and Reviews

4.7 out of 5
6 Ratings

6 Ratings

Appleseeding ,

Challenging & Satisfying Logic Puzzle

Better then the mindless "brain exercise" apps is challenging yourself to really 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!!

Thank you to the publisher for updating to new iOS, this had been my favorite puzzle!

Quackbro ,

Game is fun but app has annoying bug

Only get 20 puzzles for free before you have to buy more. Also multiple times I have had a completed and correct puzzle that where the app did not identify the puzzle as completed. Only once I checked for an error and “change” a random number to the same number would the puzzle give me credit for completing. Very annoying and frustrating


Scanraid Limited
20.3 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Unlock 1000 puzzles $2.99
  2. Unlock 1000 puzzles $2.99
  3. Unlock 1000 puzzles $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like