Daily Number Puzzle - Guriddo 4+

Tricky Sudoku-like logic game

Simon Schuster

Designed for iPad

    • 4.9 • 28 Ratings
    • Free
    • Offers In-App Purchases



Guriddo (グリッド, Japanese for grid) is a free and competitive Sudoku alternative with daily challenges. If you enjoy playing Numbrix, Kakuro or Kenken style like number puzzle and seek a new tricky challenge, then you should give Stradoku a try.

If you have never played Stradoku before, read this with caution:

Stradoku is a highly addictive logic-based number puzzle. Similar to Kenken or Kakuro you have a 9x9 grid that you need to fill with numbers from 1 to 9. To increase the difficulty, rows and columns are additionally limited through black fields. But see for yourself!

If you are new to Stradoku, don't worry - we prepared an easy beginner’s guide for you. And always keep in mind, we warned you about its highly addictive nature.

Guriddo offers you:

- Everyday we release a new number puzzle (daily challenge)
- Track your solving time and compete against other players
- There are 5 different difficulties (easy to diabolical)
- Take a break from the daily challenges and select your own difficulty (coffee break)
- Packs with hand-selected puzzles (e.g. for beginners)
- Guide with solving strategies
- Profile with stats about your skill level & progress
- Add your friends and play with them together

Privacy policy: https://guriddo.app/legal/privacy
Terms of use: https://guriddo.app/legal/tos

What’s New

Version 1.13.0

Update: Re-playing of already completed packs has been optimized, you can now resume/restart games.

Ratings and Reviews

4.9 out of 5
28 Ratings

28 Ratings

FireUglyChattyKonyU ,

A wonderful daily puzzle app

Although I received the yearly sub for free from a promo, I plan to support this app with the yearly sub. It has daily and weekly challenges that users can participate among face to face friends and players around the world. If competition is not your alley, numerous sets ranging from easy to difficult are provided. I certainly think the amount of content more than justifies the price especially with the recurring costs of the online features. If I am not mistaken, the Sudoko-flavored game is called str8ts (citation needed). The UI works for mobile. The only feature I want to be fulfilled is web browser support so I can play this game from any device.

Developer Response ,

Many thanks for your awesome review!

Interesting idea with the web version. It would probably be a big effort to offer Guriddo (including user management and leaderboards) as web browser version and I'm not sure if I currently have enough free resources for that. But I will keep your suggestion in the back of my mind. Just from curiosity, on which platform would you like to play Guriddo, e.g. Mac or Windows, big screen or what exactly would be your use case? Feel free to contact me via hello.guriddo@gmail.com :)

Gargross ,

Really clean, fun and challenging game

I love KenKen and Sudoku and this game aligns perfectly with those. Give it a try. I think you’ll like it.

App Privacy

The developer, Simon Schuster, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases
  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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