When compared to similar competing apps, this app definitely provides the best bang for ones buck!
I use it daily and truly feel it helps improve both my cognition speed, by making some awareness or focus more automatic and less conscious, and helps my working memory, by conditioning my mind to retain the newest information or procedure while discarding information that is no longer relevant.
Takes anywhere from 10 - 15 minutes to complete unless things get really challenging. A few sessions have taken nearly an hour to complete because my mind wasnt engaging the way it was being trained or conditioned.
Personally feel it helps make a difference for one with ADHD related issues or symptoms. Only one piece of my comprehensive treatment plan but I notice a positive difference as a result of using this app.
Rchstrmn about ADHD Treatment - Brain Training