For devices running Android version 7.0.0 and newer, check that your battery optimization is not preventing Detecht from running in the background:
- From the app drawer, tap Settings.
- Select Apps.
- Find and tap Detecht.
- Select Battery, then tap Battery Optimization.
- Select Apps not optimized option and change it to :All Apps.
- Find Detecht in this list and set to Not Optimized.