Mobile analytics expert Offline

We're simply looking for a professional who can consult on the following:

1. Solutions for mobile tracking and analytics that are most useful to track traffic from different sources and analyse users in-app behaviour

2. Help us integrating these solutions with help of our developers

3. Explain how these solutions can be used with ad campaigns and traffic purchasing platforms

4. Explain how in-app events in IOS 14.5+ can be tracked.

We're interested in iOS and Android solutions. NO WEB.