Really good. But not quite "perfect" – SmartGo Kifu Review

I struggled for a long time before letting go of the $20 for it. But in comparison to other offerings I felt smart go kifu offered the most. It has a nice interface and is very usable even on an iPhone which is not always the case with go apps. There are a wealth of problems, annotated games, and pro games. And if that isn't enough you can easily import more. The one thing I wish it had was some concept of shared storage. Most importantly to sync problems and games between an iPhone and an iPad. The only option is to manually export and import which is kind of lame. Shared storage would also make it easier to import games that you already have from other sources rather than one by one sharing and importing. I also wish there was a little more customization with the "my games" area. Any game you import goes into that area so it is a bit of a misnomer.
Review by linuxdaemon on SmartGo Kifu.