No HR monitor or Garmin connectivity

I bought this app to plan and run interval runs, which it seems to do well, but it only connects to certain heart rate monitors and brands.

My adidas HR monitor is ANT yet the app doesnt recognize it. Nor does it connect to any Garmin devices.

I can still use it for voice cues for my interval run, but thats about it. Ismoothrun wont be able to tell me if I am running on pace at all, especially if the GPS signal on my phone cuts out.

diamondscan about iSmoothRun, v5.4.1