If your having problems with an app rather than submitting a negative review please contact support so we can resolve the issue for you and help other users as well. Your feedback is important to us so if you need to contact support please use this form.
Help can be found within our apps about calibration and how to use them.
Please make sure you are using the latest version downloaded from Google Play before contacting us. The version number can be found on the settings menu within the app.