Brain Workshop is a open-source version of the dual n-back brain training exercise.
Created by Paul Hoskinson
Brain Workshop is not available for iPhone but there are plenty of alternatives with similar functionality. The most popular iPhone alternative is Lumosity, which is free. If that doesn't suit you, our users have ranked 44 alternatives to Brain Workshop and 15 are available for iPhone so hopefully you can find a suitable replacement. Other interesting iPhone alternatives to Brain Workshop are Peak (Freemium), Elevate (Freemium), Brainturk (Freemium) and Achieve - Brain Training (Freemium).