"lack of good quality material" You definitely are correct and I agree with you 100%. The problem is that you can't just throw a tool at people and expect it t

"lack of good quality material" You definitely are correct and I agree with you 100%. The problem is that you can't just throw a tool at people and expect it to stick - ultimately people need good content to study. For us at https://www.memorangapp.com https://www.memorangapp.com it comes down to two things: (1) Better collaboration and (2) Pre-made expert content. The latter takes a lot of money and time as we've effectively split the tool into a publishing platform and technology platform in parallel. (You can see an example of the expert marketplace of content at https://www.memorangapp.com/premium https://www.memorangapp.com/premium). You can check it out at the website and there's another discussion in this thread. We have a web-based UI and Android/iOS apps currently. Brand new versions of these are being released next month as part of a 2.0 launch.