Featuring online and last seen status in signal messenger — Steemit

WhatsApp vs Signal: 6 WhatsApp features you will miss in Signal

Add features of profile info in Signal Private Messenger to choose who can see my profile photo, last seen and status. — Steemit

What the Last Seen Status on WhatsApp Means

Featuring online and last seen status in signal messenger — Steemit

Status - Features

My Suggestion For Application Signal Addition Features : Last Seen, Change Number, Search, Add Shortcuts and Wallpaper. — Steemit

Password Manager

How To Know if Someone Is Online on Signal

SwarmAd: A decentralised content management system - Baldo - IET Cyber-Physical Systems: Theory & Applications - Wiley Online Library

A decentralised messaging system robust against the unauthorised forwarding of private content - ScienceDirect

Whatsapp - Account settings

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