If you don't want to have your friends knowing when or if you've read their messages, Unseen is the perfect App to block those pesky read receipts. While others may find it handy, it can be cumbersome if you have a friend who expects you to reply immediately. Once this App is installed, there's nothing really much you need to do.
A free .apk file of Unseen for Facebook B 1.32 is available from Droid Informer and you can have a look at users' reviews on this site. Prepare 6 MB of free space on your device for this app installer and keep in mind that it requires Android 4.1 and higher. According to the antivirus report, the app doesn't contain viruses or any kind of malware. NOVA Play is the developer of this application which belongs to the Communication category.
Unseen for Facebook B was downloaded and installed by over 100K users and the latest stable update was on Oct 1, 2020. The app is for users aged 14 and older, it was rated 4.3 on Google Play. Adverts are a part of this application.