Great app, would highly recommend it!
Great tool to start learning programming subjects but needs more computer subjects.But as a free app it is worth trying. I Recommend to those who want to learn computer subjects.
Here are my pros and cons
Pros:
- Simple UI.
- Works on my tablet very well.
- Nice Structure
- Free
Cons:
- Needs More Subjects
- Quiz Personalization if possible.
- More notes.

As a free app I will give 4/5.