You should be able to have all three installed at the same time Open up your device's settings, click on apps, and make sure Tasks.org is not there. If it is,

You should be able to have all three installed at the same time Open up your device's settings, click on apps, and make sure Tasks.org is not there. If it is, tap on it, tap on the overflow menu, and select 'Uninstall for all users' Then try downloading an APK from https://f-droid.org/en/packages/org.tasks/ https://f-droid.org/en/packages/org.tasks/ and side loading it You can follow up with me at support@tasks.org if you would prefer