Originally Posted by skeeterfood
Polar Beat is now compatible with the Nexus 4 & 5 and most other Android 4.3+ devices.
I can tell you it is not certainly marked as compatible for Nexus 4 (running CM 4.3.1 snapshot) because it won't let me download it.
EDIT: I also just tried changing ro.product.model in build.prop to Nexus 5, clearing Play Store data and restarting. Still doesn't return the Polar Beat app. I would try the S4 but I don't know the right strings for that phone.
EDIT2: Found S4 strings (GT-I9500 and samsung) and tried those... also cleared Play Services data in addition to Play Store data... seems to make no difference as far as the Play store is concerned.
EDIT3: Installed an unrelated app and it updated my devices on the google play site... now says I have an LGE GT-I9500 instead of an LGE Nexus 4 (despite having changed the ro.product.brand to "samsung"). So I changed the ro.product.manufacturer to samsung as well... still says LGE. I don't see any reference to LGE anywhere in the file. Of course it could be coming up with that based on something else in the file. I didn't change the mako references or anything.
EDIT4: Reverted my build.prop and upgraded to 4.4.2. It won't install on a Nexus 4 with 4.4.2 either. But at least now Play will show me the app and tell me I can't install it rather than pretending it does not exist and showing me a bunch of "Polar Bear" related apps instead of "Polar Beat." So I guess that is an improvement.