Review on GapDebug by Christopher Jackson

I like the fact that it's free to use with no limitations in terms of features or scope. It's easy to get started and understand. There are some aspects which could be improved. For example, the way the console logs/errors can sometimes be difficult. Also, I would have liked to see more information in the "breakpoints" area. But this is all minor when you consider how easy it is to set up, and how fast it runs. Try it out if you're looking for something simple and free. We are using it to debug our hybrid cordova app (for android) and we found it very helpful.