1.

Dianara 1.4.1

Social by JanKusanagi
Dianara is a pump.io client, an application for GNU/linux and other desktop systems that allows users to manage their Pump.io social networking accounts without the need to use a web browser, and provides several features not available in the standard web interface. Since it's a Pump client, you...
4 comments
Score 70%
70 Likes
30 Dislikes
Dec 30 2017
2.

Google Plus Web App

Social by alex-l
Google Plus as *.webapp file. You can use nativefier-freedesktop to install it using Electron technology: https://github.com/alxlg/nativefier-freedesktop
Electron-Webapp
4 comments
Score 59%
59 Likes
41 Dislikes
Dec 22 2017
3.

FeedReader (Flatpak)

Social by Flatpak_Apps
RSS client for various webservices. *.flatpakref file can be opened with GNOME Software or KDE Plasma Discover and the download of the application will start.
Flatpak
Score 50%
50 Likes
50 Dislikes
Nov 28 2017
4.

Mastodon Web App

Social by alex-l
Mastodon as *.webapp file. You can use nativefier-freedesktop to install it using Electron technology: https://github.com/alxlg/nativefier-freedesktop The installer will ask you for the URL of your instances, i.e. https://mastodon.cloud.
Electron-Webapp
Score 50%
50 Likes
50 Dislikes
Dec 22 2017