iPhone Screenshots


IGN Rated IQ boost an 8/10 "Impressive"

IQ boost is based on the Dual N Back exercise. The Dual N-Back task is the only mental activity that has been proven to improve your short-term memory and fluid intelligence. Read the Wired article http://archive.wired.com/science/discoveries/news/2008/04/smart_software

- Improved game timing and scoring
- Audio only and visual only modes
- Bluetooth audio latency compensation
- Optional in game feedback
- Adjustable stimulus timing
- Detailed reporting of your progress as you improve.

Please email support@tnxbai.com or tweet @rantlab if you have any problems, suggestions, questions or you would like to report a bug.

What’s New

Version 2.1.3

Removed In App Purchase requirement for advanced levels.

Ratings and Reviews

4.0 out of 5
5 Ratings

5 Ratings

..Jeff.. ,

Better than the other N Back apps

I have bought every other N Back app. This one is my favorite, by far. I like the flexibility of offers to control the timing, in-game feedback, stimulus type, stats, etc. I love it. Just with there was a bit of a refresh on the UI to make it look a little newer, but that’s no big deal. Awesome app!

A2dam ,

Pretty good

Progress chart in particular makes this great. It would be neat to export your progress as a CSV, but that's my only feedback.

DJ K0d ,

Scoring is off

It’s a fine game, but the scoring isn’t calculated right. Even for the simplest mode where I get all of the answers correct, it will show 83% instead of 100%.


Brian Williams
4.1 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2008-2016 Brian Williams


  • Family Sharing

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

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