Of these three apps, only two offer native iPad versions- SimpleMind and iThoughtsHD-and neither of those apps is Universal, which means that if you want to use them on all your iOS devices you’ll have to purchase both versions. True, all three of the apps reviewed here are designed for the small screen, but the small size of the iPhone/iPod touch screen and the expanse that even a basic mind mapped brainstorming session can become are two things that don’t go great together. I’ll start this review with a small caveat: Mind-mapping on a small-screened iOS device is not much fun and best avoided.