Anybody here use the Charity Miles app?

It’s an app that tracks your run/walk/bike and sponsors of the app then donate to your chosen charity. Unfortunately it’s all American-based charities right now, but I’m happy with that.

My question is: how much data does it typically use? It tracks your distance by GPS but I know it must use up data too as the app is running.

I can’t seem to find the answer. I’m worried about using the app often and going over my monthly data limit.

MODS: Not sure if this belongs here or in Cafe Society, feel free to move if needed. Thank you.