Qubd 4+

IQ, Math and observation game‪.‬

Steven Koutsouliotas

Designed for iPad

    • $1.99



Test your math, addition, subtraction, multiplication and observational skills in this deceivingly challenging, fun and minimalist brain teaser game of guessing how many Cube bricks are missing from the 5 Cubed volume.
A fun way to train and improve your cognitive function.
Sharpen your mind and give your brain a workout while completing ever challenging levels.

Suitable for all ages.

What’s New

Version 1.0.8

Tutorial GUI improvements.
Fixed bug with tutorial pressing too many buttons.
Fixedbug that resets strikes.
Fixed bug that allowed to skip levels.

App Privacy

The developer, Steven Koutsouliotas, 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 Not Collected

The developer does not collect any data from this app.

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


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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