Stopped working.
Response from developer
A fresh download is working fine here on an XS Max running iOS 14.3. Did you try any of the troubleshooting steps at https://www.adamwilt.com/cinemeter/support.html, like resetting your phone, or deleting and reinstalling the app? Did you try contacting the developer for help? There is nothing in the code that should make it just stop working, so it's likely something went wrong with your installed copy — even if it was working before. Things DO fail of their own accord once in a while, and if resetting your phone doesn't fix it, reinstalling the app should.