A/B Testing in iOS | Swift | Firebase

For building a good product, it is very important to understand user preferences, and A/B testing is one of the most efficient ways of doing it.
In this video, I've tried to cover A/B testing in iOS using Firebase.
Why is A/B needed, what is the concept of A/B, what kind of A/B is supported by Apple - Product Page Optimisation (PPO), configuration of Firebase Project, A/B Tests, and everything else.

Chapters -
00:00 Intro
03:45 A/B Testing
04:06 Concept
04:45 Product Page Optimisation (PPO)
05:52 Firebase Project Configuration
07:43 Remote Config
09:05 Configuring A/B Test
12:40 Testing A/B Experiment