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7 is considered to be a special number in many cultures around the planet. 7 days of creation, 7 seas and 7 sins. 7 notes in Indian music, lucky 7 and harmony in China. 7 islands of Atlantis and most likely to be chosen as a favourite number by people around the world. Why are we so obsessed with this number? For thousands of years. What makes it so special?

In 1956, George A. Miller concluded that we are able to hold, on average, 7 chunks of information (plus or minus two) in the short-term memory at one give time. Is it really our limit? With this training, you may be able to challenge this theory as well as your memory.

In 7 pyramids you will find 210 memory challenges that will increase with each level. Can you really remember 7 chunks of information? What about 10?

What’s New

Version 1.5

First three pyramids are now free to play, all the way till the end.

Ratings and Reviews

4.8 out of 5
13 Ratings

13 Ratings

In-App Purchases

Unlock Full Game
Unlock additional 6 pyramids and your memory


Bootchec LLC
148.7 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Unlock Full Game $1.99


  • Family Sharing

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

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