What os do android phones use?
Is android 7 any good?
Which is the best ui for android?
What exactly is android?
How do I check my android os version?
What can android 7.0 do?
Is it necessary to update apps on android?
How do I update my os on my android?
Is google replacing android?
Which is better android lollipop or nougat?
What is the difference between android system and android os?
Is apple an android?
When did android become open source?
Is swift garbage collected?
Is swift like java?