If you've encountered a CSV file and you're unsure what they're for, the good news is they're pretty straightforward and easy-to-use with apps you already know.

I have plenty of apps on my phone, but these are my must-have open source Android apps that I install on every new device.

Open source apps give users additional power over their favorite Android phones, whether that's through improvement upon existing services, altering source code, or ensuring privacy on the best ...