Crashes repeatedly

If you’re looking to buy a Bluetooth tracker that uses this app, look elsewhere. I bought a tracker from Groupon, and, after trying to pair it with just about every other app I could find on the App Store that looked remotely like the one pictured in the instructions (the instructions didn’t mention which app to use), I contacted Groupon support and was directed to this app. Upon opening the app on my iPhone 5 running iOS 9 (yes, it is the final release), it asks (briefly) if it can use notifications, then crashes. Open it again…same result. Now I’m left with a hardware tracker that I can’t get to work at all.

iSkippy about iTracing, v2.3.9