[MrLeftHand]

I bought for my kids Amazon Fire tablets and had to realise there are no games which were suitable for them. Each one of them had some sort of ads, even the completely free ones on their Underground market.

And Amazon is also a big offender. They have ad popups even on their kids interface.

The only way to counter this is to go offline after you downloaded the game, but still there are some which wouldn't even start without an internet connection.

In Google's and Amazon's place I would uphold the app creators to certain standards when it comes to kids games and apps. Like not putting ads in their apps, or if even if I allow it, then forcing them to make it easily closable and not making them with 10x10 pixel big X marks.

In the end all the games out there on the app store are either complete rubbish, or just money grabbing schemes. There are rare exceptions, but good luck finding them.