First off, let’s be clear, this isn’t an app but rather a digital torture device. You’d think an app from a multi-billion dollar company would be at least marginally better than one built by Jerry and Cleetus in the shed behind their mom’s house, but you’d be wrong. The first problem is the constant trouble syncing. Over and over you’ll get the little red circle with an exclamation point, and despite doing everything from hitting retry to reinstalling ConnectIQ it’ll keep happening. Now whether it’s actually struggling to sync or just claiming to be struggling to sync I can’t say. Even when I receive the error icon I can still send data back to my phone, so who knows, maybe it’s syncing maybe it’s not. Secondly, the IQ App Store will not display apps it doesn’t believe are compatible with your device, even if they claim to be, and if you round about find the apps you want by using your browser it won’t let you download them. In my case I have an Edge Explore unit which should be compatible with the Bontrager light control app according to the compatible device listing on ConnectIQ data page, but the IQ App Store disagrees, and insists I add a compatible device to my account to download ConnectIQ . This leads to my last gripe; good luck getting support. Garmin is more than happy to take your 200, 300, 500 dollars, but they’re sluggish in assisting you with getting it or this required app to work.