Helpful but agree with other reviewer too many ads – Guide for Marvel Contest of Champions - Strategy Review

Developer definitely give you some helpful info but it looks like the last update was in August 2016. A lot has changed since then obviously. The ads seem to spawn every 90 seconds or so, but fortunately they are very short. If you want the information you can just kind of ignore them.
Review by Christano on Guide for Marvel Contest of Champions - Strategy.