My trail does not record properly in background or screen off mode

For Android

In order for certain features of the app (recording, following, downloading, etc.) to work when the screen is off, or in the background, you often need to change certain settings of your device.

First, make sure that you have not activated a power saving mode in your device's battery settings or any other setting that would cause the GPS to stop when the screen is switched off.

On Sony devices, in particular, enabling "Stamina mode" causes this issue

See the specific advice given by your device manufacturer as described here:

You can also visit the following website (in English only), which provides information about specific settings for your device brand and model to prevent the app from being stopped by the system during operation: https://dontkillmyapp.com/

After changing these settings, a restart of the device may be required for them to take effect.

For iOS (iPhone / iPad)

Go to the "SityTrail" section of the "Settings" app on your iPhone / iPad and check that the settings are set as shown in this screenshot: