Edit app coding?

[Jerry Antonucci]

I'm new to the Samsung team. I had an iPhone before and I loved messing with the coding. I was able to remove ads for some apps and just tried to improve speed performances for certain apps. I used programs like I file and flex on the iPhone with a jailbreak. Is it possible to edit app coding through android too? Keep in mind I have a s6 edge plus and as of right now it can't be rooted