“Facebook members are sending the social giant a pretty clear message: Your app stinks.

“”Terrible app” and “to hell with this” are just some of the things people are saying online about the latest version of the Facebook Messenger app, which will soon take the place of the messages function on Facebook’s mobile app.

“Though the Messenger app first launched in 2011, Facebook began alerting users this week that they had to download the app in order to continue to send and receive messages on iPhone and Android devices.

“The switch has peeved users, many of whom thought Facebook’s messaging function worked just fine.

“A blog post originally published on The Huffington Post in December, which has gone viral this month, warns users about the chat app’s “insidious” terms of service and its “attempt to collect so much information and take control of our devices.”"

- HuffingtonPost