Inapp Native.

In-app native ads blend in so well with the content of the app, that they appear to be a part of it. They’re a great way to drive user engagement because they are not intrusive and users are more likely to interact with this type of ads.

File ratios:

1:1, 4:3, 6:5, 3:2, 1.91:1, minimum size: 600×500

File types: