The call quality has diminished

When I first started using this app as a secondary line, it was great. After everything was offered for free without having to have a balance, the quality and stability of the app has diminished. If I receive a call, I have to exit out of an ad and then sometimes because of the ad, I cant hear the call anyway and the person hangs up. Hopefully this gets better.

DARSHEL about TextNow with 1 Month No Ads, v7.2.0