For being this big, so used around the world, company the apps is full of glitches and dumb bugs. Like seriously, put a person to add devices and really use the app and you will find tons of errors. Despite that first time that you add a device when showing the first "call" from the ring, a popup help will show, and you CANT tap on "got it". so you need to go back or kill the app. and then the second time will work. This happened to me 3 times on different phones, with different rings installation. Ring will ask to scan the QR, is full of videos everywhere but wont tell you that the QR is UNDER the face place (and that alternative can be found on the box). for a "all people friendly" app is a big error. And another thing, when setting up the chime, it has ringtones, but guess what? You CANT hear them. You can only tap on ":test on chime" the ringtone that is already set. if you select another ringtone will change the button to "save" and when you save you need to wait like 5 minutes so the chime update, then come back there and click test to hear the ringtone, and all over again if you want to check another one. And like that, app has a lot of dumb basic errors. Like the dev never used their own app.