The quickest way to determine the presence of stalkerware is to run a scan with a tool such as Certo AntiSpy.
Some other things you can check that may indicate stalkerware include:
- You have increased data usage, specifically from apps you do not recognize.
- There is an app called Cydia or Sileo installed on your device.
- Unknown apps have access to your camera, microphone or location.
- Your battery performance has suddenly decreased or your device gets hot when not in use.