Google introduced a requirement that apps listed on the Play Store must require separate permissions for different functionalities. We have not yet updated our Android app for these changes, so it is not currently listed on the Play Store.
We do have the previous version of our Android app which was available on Google Play until this requirement came in, and it has worked in all our testing with recent versions of Android. Our app does not require complicated or sensitive permissions, we are not using your device data in any controversial ways, and ultimately you can always control permissions by uninstalling the app. Please contact us if you are interested in using this earlier version.