Wearing a Libre 3 sensor from Abbott, I can say I'm happy I don't need the official app. The sensors are good. The app however forces you to be always online and send your measurements to Abbott's servers, if you want the measurements to be available to other apps or devices. It means that if you lose connectivity, or Abbott loses their servers, no integration will work anymore. Your smartwach will not display your readings, your partner will not be able to see them on their device, and in my case, if I used their API, my closed loop, automated setup for insulin delivery would stop regulating.<p>How they arrived at that design decision I can only wonder. Probably not even malicious, just taking the easiest path. And now they even managed to get their app dropped from Apple's app store. I understand people don't want to tinker with their setup, but relying on closed systems like Apple's and Abbott's risks exactly such scenarios.<p>I'd like to kick Abbott entirely. And I keep trying to switch to competitor Dexcom, who are a little bit more open. But their hardware just doesn't work as well for me.