This turns freestyle 2 into an actual CGM. Complicated to set up but I've been using it for years without Libre's terrible apps.

https://www.minimallooper.com/post/how-to-setup-freestyle-li...

I use an app called Glucose Direct, it’s in beta, that reads the Libre 3 data and writes it to healthkit which then can be read by glucomate.

I got my father-in-law to give me a freestyle sensor, which was region-locked. I ended up buying one of these[0], and it worked well to get the data into healthkit

0: https://www.ambrosiasys.com/product/waterproof-nightrider-bl...

We use this with my son's freestyle: https://miaomiao.cool