Substr AlternativesSocial Networks and other similar apps like Substr

Substr has been discontinued. Similar sites and apps include Lemmy, which is free and open source. Other options are Reddit and Slashdot. In total there are three News Readers like Substr for Android, iPhone, iPad, self-hosting and Windows.

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Substr alternatives page was last updated Aug 25, 2026

Lemmy
214 likes
Lemmy is similar to sites like Reddit, Lobste.rs, or Hacker News: you subscribe to forums you're interested in, post links and discussions, then vote, and comment on them. Behind the scenes, it is very different; anyone can easily run a server, and all these servers are...
86 Lemmy alternatives
Cost / License
Free
Open Source (AGPL-3.0)
Application typeApplication types
Lemmy Client
Social News
Origin
International
Platforms
Online
Android
iPhone
Self-Hosted
Global
Good alternative?Is Lemmy a good alternative to Substr?
Reddit
619 likes
An extensive platform for user-shared content and discussions, organized into niche 'subreddits' across numerous interests like news and video games, with a dynamic voting system influencing what appears on the front page.
215 Reddit alternatives
Cost / License
Freemium
Proprietary
Application typeApplication types
Social Network
Social News
Origin
United States
Platforms
Windows
Online
Android
iPhone
Android Tablet
iPad
Tor
United States
+4
Good alternative?Is Reddit a good alternative to Substr?
Slashdot
40 likes
News for nerds, stuff that matters. Slashdot (aka /.) is a technology-related news and discussion site with a focus on Linux, free and open source software and information freedom and privacy issues. The software it runs on, called Slashcode, is open source.
45 Slashdot alternatives
Cost / License
Free
Proprietary
Application typeApplication types
Tech News
News Reader
Origin
United States
Platforms
Online
United States
Good alternative?Is Slashdot a good alternative to Substr?

3 of 3 Substr alternatives