I recently made a game for both Android and iOS, and I want ads from Google. I googled it, and turns out that I should use this: https://github.com/googleads/googleads-mobile-plugins/tree/v2.1 package. I downloaded it and imported it to my project. Then I went to Admob.com, and got an ID for my add. But here it starts to confuse me.
1. Under Requirements --> Android, I see "Google Play services 4.0 or higher". Does it mean that I need to download more? When I click at it, it takes me to some Google page, but I see no Unity support anywhere. Do I need to download some Google Play Service plugin, or isn't it necessary?
2. Under Requirements --> iOS, I see "Google Mobile Ads SDK", and it takes me some download page. Do I really need to install that? And how do I integrate it into my Unity project?
3. Under Android Setup. I don't have a custom manifest, since I use the prebuild manifest from Unity. Can I skip this part? I don't have a /extras/google/google_play_services/libproject folder anywhere, and can't see how to download it?
5. Last. Which game object do I have to attach the script to? Do I need different Ad Unit ID for different platforms, and how do I implement that?
I know that it is a lot of questions, but I'm very confused. I don't feel like there is enough documentation out there, and I'm properly not the only one confused.