Start the Swoo app > go to Recent apps > swipe up and hold for opening recent apps > long press anywhere on the window and tap the Lock button on the upper right corner of the Swoo app.
System Settings > Apps > Gear Icon > Special Access > Battery Optimization off
System settings > Battery > Battery optimization > Swoo > Don’t optimize
OnePlus 6 and further
System settings > Battery > Battery optimization > three dots > Advanced optimization > Deep optimization (Adaptive Battery) > disable Swoo
System settings > Battery > Battery optimization > three dots > Advanced optimization > Sleep standby optimization > disable Swoo
OnePlus below 6
System settings > Battery > Battery optimization > three dots > Enhanced optimization off
If you have a different device and you need help, reach our support team any way you like and describe your issue in detail:
in-app chat (the "Chat" tab in the bottom navigation bar)
in-app contact form ("Menu" → "Contact us by email")