What Mobile's operating system you use?

I use Android because of its freedom! No regrets, though

android OS, but i would like to use KaiOS and others.

I'm an iOS user because I like iPhone's design.
Yes. I know. I'm weak.

I will try Android, but Google's ideology scares me a little.

I just use the stock Android Nougat on my samsung phone for convenience. I don't have time tinkering with custom roms anymore.

Thought running custom OS's on phones drained the battery, I've always stuck to stock ROMs.

I use vodafone with 5 eu they giveme 30 giga so i can navigate in internet

I've been Lumia/Windows Phone user for past 4 years, however recently switched to Android as Nokia's new phones runs on Android. I've installed Windows Phone 10 launcher on it, actually I can't get used to Android/iOS interface it's too uncomfortable.

Android for my first phone, IOS for the second smartphone. But I prefer the first one

android .................................................

I ported a rom for my device ^^ (Acer S56), ported from the Lenovo P70 stock.

The Lenovo rom is fastest than the acer one !