R. J. F.
This app is excellent for learning to sign. I wanted to learn both ASL and BSL, and I'm glad that I can do that with this. There's also a great trainer in here that uses spaced repetition to help you remember the signs you're learning. The one thing I wish was here, though, is the ability to see a sign from different angles, as sometimes it's hard for me to figure out what my hands should be doing.