Too many ads for a paid app

Over and over you get ads to upgrade to premium. Totally annoying for an app you already paid for. It seems to be a really lame app as well. I thought it would have interval timing, like walking moderately for 10 minutes then fast for five minutes and repeat. But from what I could see it just says "walk for 35 minutes". After you click through multiple ads. Which show up every time you open the app. Totally not worth it. other interval apps are much better and dont make you upgrade to premium to have a music playlist.

whitenk about Walking for Weight Loss PRO, v4.2.1