Spyware apps are notorious. They steal a plethora of private information, like text messages, GPS location, photos and more. Some may even record your call conversations and your surroundings. Identifying a spyware is tricky and so is deleting one. Look at the Infographic below from Family Orbit to learn some tricks of the trade to identify spyware infection on your phone and what to do if one is found.
Infographic Source: https://www.familyorbit.com/blog/detect-hidden-spy-app-on-android-iphone/