If you've made a purchase of and app or have a specific problem with that app and have found Sensor Tower in the process of trying to get a refund or a fix for your app, please read this help page 

Sensor Tower is a data analytics platform that provides data on the mobile market. Sometimes when you google an app's name, our platform will appear because we provide data on those apps. We are not the developer or publisher of those apps however. 

If you do have an issue with a specific app, please reach out to the App Developer which you should be able to find through the Apple App Store or Google Play Store.