Why does Facebook Messenger say I'm active when I'm not using Messenger?

Hey,

Usually it takes about 7 mins for Facebook to updated your activity as being inactive. Occassionally your phone and FB app exchange information regarding messages and whatnot. This makes it look like your online.

Please note: your phone will take over the connection, if you sign out of Facebook on your computer. So whilst it may take 7 mins for your Facebook activity to be updated as offline, when your phone takes over the connection it may take an additional 7 mins for inactive to go off.

Simple answer: If you re active on facebook you can use the version of messenger which is incorporated in the website, so are (potentially) active on messenger as well.

The app could just be running in the background of your phone or the information might not have updated by the time you have checked it. If its hours later then I would think it is because the facebook messenger is running on the background.