Use APKPure App
Get OPM Status old version APK for Android
OPM Status while OPM figures out why "OPM Alert" is broke.
The current OPM Alert app is not working on Android Lollipop using ART. So I found some code on GitHub (Thanks JPHFan) and made a few tweaks of my own. This will at least help fill the gap until OPM gets a fix.
If you want to help: https://github.com/soboapps/OPMStatus