Difference between local apk and Google Play apk

Hello there,

I'm new in Unity. Trying to develop games and make some money from them. I have a problem that, when i transferred and installed the apk to my phone, it works the way that i want. But when i upload the same apk to google play and download and install it from market, it works different.

There is admob ad bottom of Menu scene. When user touchs the start button, ad fades out and game starts. When the player out of his/her lives, a message appears "touch the screen to return to menu". When player touches the screen, "menu" scene loads and ad fades in at bottom.

This works when i transfer the apk to my phone and install it. But when i try to download it from google play, the ad fades in on menu scene, and never fades out. It always stands there. How can i solve this problem? Scripts are well shaped.

Thank you.