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

This app has been updated by Apple to use the latest Apple signing certificate.

Removed In App Purchase requirement for advanced levels.

Ratings and Reviews

3.7 out of 5
9 Ratings

9 Ratings

Hhhhgffhuusdt ,

Inaccurate scoring

I would give 5 stars but the scoring is way off. Even when I get them all right it comes up with random scores of far less than 100%. Please fix! Also, unlike the previous version, this version cuts you off in the middle of a round rather than letting you finish the "set."

..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.

App Privacy

The developer, tnxbai, indicated that the app’s privacy practices may include handling of data as described below.

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


  • Family Sharing

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

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