What are disguised apps?

Could you please elaborate on what disguised apps are? Are they a type of malware that hides its true nature, or do they simply mimic the functionality of legitimate apps in order to deceive users? Additionally, what are some common tactics used by disguised apps to deceive their targets, and how can users protect themselves from falling victim to such schemes? Understanding the nature and risks associated with disguised apps is crucial in today's digital landscape, and I'm eager to learn more about this topic.