TelemetryDeck is a tiny package included in your apps that can tell you about user numbers, retention, versions, and more.
Get a high-level overview of what kinds of users you have and what features they use. Completely anonymized and hassle-free in regards to GDPR and CCPA.
HomeRun is a HomeKit control app for iOS and watchOS. It gives you super fast control of your home from your wrist, home screen, or in the app.