Tsumego Pro (Go Problems)

"Very good app. I'd love to see commentary and explanation on the puzzles"

"Fun"

"Not really helpful for beginners; no explanations for why a solution is optimal."

"Great way to learn and sharpen Go skills in bite-size pieces. The scenarios are realistic and well organized by difficulty. A very fun app that's well worth having."

"Pretty good for practicing Tsumego. I try to practice at least a few times a week and I can already tell my skill in reading and life and death situations improving"

"Great app. Has helped my Go game immensely."

"As quick problems go it's pretty good. Of course such tight play requires a different approach to a whole board but it's better than not playing Go."

"Good puzzles"

"One of the two good go apps in the play store! The one feature I would love to see is a volume slider, instead of just an on/off switch"

"A big selection, but it doesn't remember when you have done them, and several are wrong! The explore option is good so it's ok....Go is massively more subtle, more intelligent, and more unpredictable/switchbacky than any other game ...like the yin Yang of real life, only more so!"