That is the app, but I’ve only ever downloaded it from the play store, even on graphene, here’s their “official stance” it’s funny that they ship a Motorola device with the first set of kits so you’ll have a compatible device, but those aren’t natively compatible. I haven’t tried through an emulator, but can give that a go. I’ll also fire up the graphene phone later and get it’s exact error.

This particular pump requires it because its a wearable with no interface. There are still some that have a drip line and cannula, but, I dunno about their interface, they very well may require a phone too. The Omnipod system does come with a “free phone”. It’s some no-name Motorola that’s about twice as thick as a regular phone. I don’t really want to carry it, my personal phone, and my work phone, way too much junk. Before smartphones, the pump was the interface, a small screen, a few buttons and AA battery powered. They were OK, but had several downsides. The drip line being the biggest for me, it was always getting caught on stuff.