Other than Google Play, where else to publish free app that supports ads?

I have tried to upload to Amazon but it stated error due to 3rd party ads…does anyone know where else to publish out apps that supports admobs, startapp, etc?

Amazon and Samsung App accept Admob, Startapp can use with SlideMe

Strange when I submit, it stated it has “3rd party network”. Will they accept if app has more than 1 ads network?

Which one support AirPush and Applovin ?

They accepted all of mine. I even have airpush in a few of mine as well as senddroid, but don’t make much because people cant get google play on their kindle fire’s. Best to use Amazon Ads and I heard chartboost for amazon.