The free cell phone tracker apps tempt users, who are willing to use them without realizing the issues surrounding them. The free apps won't cost you money but have hidden strings attached. For instance, these apps are not maintained and updated as paid ones. They will continue to have glitches or flaws that might impact your security and overall user experience. Besides this, most free tracking apps bombard you with pop-ups and ads. The ads are annoying and interfere with the app from its purpose. Also, the free apps might collect much personal information and are sold to third-party marketing companies without your consent. Hence, investing in a reliable paid tracker app is better. You can also try out the free trial version of the tracker app to check out its features first.