I got my rating with paper charts, then after a LONG break from aviation, I got back into and started using paper, because that's what I knew. I also started sampling different apps and quickly realized that using an app was a major improvement over paper. I tried several and decided on Foreflight. I felt it was on the most stable platform and that for me it was more intuitive and easier to use - but - that's just me. I also felt that with the Apple environment, with it being more restrictive than android, I would probably have fewer bugs and better support. So far - it's work great - I just have the lowest/basic subscription today.
Dean