The OriginOS shell (formerly FuntouchOS) by Vivo actively manages background app activity to save battery power. Because of this, you may need to adjust additional settings manually to ensure that SingularityApp notifications work reliably.
How to Check Your Vivo OS Version
- Open your phone’s Settings.
- Select “My Phone”.
- Find the instructions below that match your system version.
Auto-start
According to Vivo, this option should be available on all Vivo phones.
- Newer OS versions: Settings → More Settings → Apps → Auto-start.
- For Funtouch OS 2.6 and earlier versions: Manager → App Manager → Auto-start Manager.
Unrestricted Battery Usage
Starting with Android 13, you can set unrestricted battery usage for each app individually: System Settings → SingularityApp → Battery.
Background Power Usage Restrictions
Also starting with Android 13, you can configure this per app in the Battery section: Settings → Battery → Background Power Consumption Management.