Describe the bug
The app only earns walking points when the screen stays open. Sometimes, it stops counting points even though the screen is still on. In some cases, points stop increasing completely until the app is closed and restarted.

To Reproduce

1. Open the app and start a walking session.
2. Keep the screen on while walking.
3. After a few minutes, notice that points sometimes stop increasing.
4. Try restarting the app points begin counting again.

Expected behavior
The app should continue to track walking activity and add points automatically even if:

The screen turns off or dims.

The app runs in the background.

The user walks continuously without restarting the app.

Screenshots
No

System Information (please complete the following information):

• Operating System: ios 26.01 (iphone 13 pro max)
• Python Version: Unknown (mobile app)

Additional context
Sometimes the app seems to pause background tracking. It would be better if it could continue counting steps or distance in the background, or at least show a notification reminding users to reopen it if tracking stops.