Very low percentage in operation on iPhone and Android

We have two phones running for GPS data with Ethica, one is Android and one is iPhone. The users are not doing anything to interrupt their data collection and the apps are completely set up. Why are both phones showing they are in operation only 50-60%?

Hi @asusnacstudy,

I hope you’re doing well.

Could you please provide me with the user_id for both devices?

Kind regards,
Omid