How can I prevent smartphone apps from spying on me?

Episode 1597 (1:54:38)

Scott from Long Beach, CA
App Store

Scott doesn't want his smartphone to phone home and spy on him. Leo says that both IOS and Android will allow you to turn off their cell access, thereby preventing them from phoning home. But realize that will limit their usefulness.  Check out this article on how apps phone home - https://www.dailyherald.com/business/20190601/what-is-your-iphone-doing-...