Great Hardware, App needs more work

The device is great, will be buying a few more soon.
The app lacks one simple feature, change temperature to Celsius. Where I live we dont use Fahrenheit at all! Its a simple thing, please implement this!
Also it would be great if we can somehow use the app/device without needing the app open at all times, but I think thats an iOS restriction.

Tan D about Chipolo – Find Your Everything