How to find and remove spy apps?

Recently, my phone has started to freeze, and I suspect that I have picked up a virus or some kind of spyware. How can I get rid of it or how can I avoid it in the future on the Internet?

To be an advanced Internet user, you need to know a lot, especially about your security. I know how to find spy apps on your phone. Spy apps are a type of software that can be installed on your phone without your knowledge, allowing someone else to track your activities, including your calls, messages and location.