What's New

Fixes and improvement for iOS 14.

App Description

Dual N-Back is the most popular app for improving fluid intelligence.
This is a simple, bare bone, implementation of this idea.

Cloud service for storing your settings and progress.
Now you can stay in sync in between your iOS and MacOS devices!

More features coming soon!

iPhone Screenshots

(click to enlarge)

Dual N-Back - Train of Thought screenshot 1

iPad Screenshots

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Dual N-Back - Train of Thought screenshot 2 Dual N-Back - Train of Thought screenshot 3

Apple TV Screenshots

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Dual N-Back - Train of Thought screenshot 4 Dual N-Back - Train of Thought screenshot 5

App Changes

  • April 27, 2016 Initial release
  • July 03, 2016 New version 1.1.0
  • July 05, 2016 New version 1.1.1
  • August 11, 2016 New version 1.2.0
  • November 14, 2016 Price increase: $0.99 -> $1.99
  • November 15, 2016 New version 1.3.0
  • November 26, 2016 Price decrease: $1.99 -> $0.99
  • December 01, 2016 New version 1.3.2
  • December 04, 2016 New version 1.3.3
  • December 10, 2016 Price increase: $0.99 -> $1.99
  • June 15, 2019 New version 1.10.2
  • September 16, 2023 New version 1.11.6
  • September 16, 2023 Price increase: $1.99 -> $2.99

Other Apps From Michal Mandrysz

Systematic - Set goals, track time & build habits True Sentence True Sentence Dual N-Back - Train of Thought Digit Span - Train of Thought Digit Span - Train of Thought Mental Rotation - ToT Stroop Effect - ToT Mental Rotation - ToT Stroop Effect - ToT