You could try LogDog

It is integrated as an external sdk (1-minute setup; works for Android and iOS).

Then all your logs and requests will automatically get logged to a remote web dashboard.
You receive the logs in real-time and can filter or search.

The logging on your users devices can be activated/deactivated remotely on your users devices.
Bonus feature: It also allows you to take screenshots or live capture the screen of your users devices.

This could help to debug issues that only happen on specific devices.

Note: I am the creator of LogDog