Hi guys
Can you give me a hand on how to backup phone (os, apps and data)?
Before I do anything adventurous I want to backup my phone just in case.
Btw I use galaxy s3 with stock 4.1.2, rooted

I found this app is this right approach?
https://play.google.com/store/apps/details?id=com.h3r3t1c.onnandbup

Thanks for the advice