The apps to use if you want to keep your messages private

Facebook Messenger for iOS Gets App Lock, New Privacy Facebook Messenger has been updated with the ability to require authentication before allowing the app to be opened on your iPhone. The feature works with Touch ID and Face ID. The Truth About the Facebook Messenger App and Your Aug 27, 2014

‎Signal - Private Messenger on the App Store

Apr 16, 2020 Top 10 Texting Apps for iPhone and iPad in 2020

Feb 05, 2020

Facebook Messenger Introduces 'App Lock' And New Privacy