Start Guide https://developers.google.com/admob/ios/quick-start
Reward https://developers.google.com/admob/ios/rewarded
Interstitial https://developers.google.com/admob/ios/interstitial
Native https://developers.google.com/admob/ios/native/start
Start Guide https://qiita.com/SNQ-2001/items/44f3446ce0966c78641b
Reward https://qiita.com/SNQ-2001/items/253173abefc6f90f86ea
Interstitial https://qiita.com/SNQ-2001/items/5590a55324c39582a9ef
Native https://qiita.com/SNQ-2001/items/7151fdcb8e9f8c2c42c2
Reward https://github.com/SNQ-2001/AdMob-Reward-Demo
Interstitial https://github.com/SNQ-2001/AdMob-Interstitial-Demo