I got this for a $1 at Best Buy, needed an upgrade my tracfone's reception is awful. It sounded like I was under water and garbled.

I recently got the Samsung Galaxy S6 Edge, it's got a lot of neat features but was wondering if anyone knew about any help that they might be able to give me on the subject. Any good apps that you may know of?

Thanks for the help!

There are lots of good apps on this site as you know already think about what you want to do with your phone then find
the app to do it.
here are some that I use:
Sygic v16.4.14 Final - GPS
AirDroid v4.1.1.1
App Manager v1.7.2 - Deleting App
Battery HD Pro
Aqua Mail Pro
Habit Browser
My Cars (Fuel logger++) Pro
SD Maid - System Cleaning Tool
Solid Explorer File Manager
SwiftKey Keyboard
just to name some of then I run about 35 apps I use all the time.

Can someone help me, I've got samsung galaxy s6 edge plus from Phillipines and now I'm in Indonesia, and after I updated the OS, I cannot switch mobile networks because it is greyed out.

it looks like it not made for Indonesia each country have there own setup.
like If I got a cellphone in England it will not work in New Zealand
some countries might be ok but I don't know which ones. might pay to ask the different phone placers.