Server Fault
Tildes
Qane
Ureka
MetaFilter
Reddit
Sapien
20-Things is a social media / link aggregator

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

Which is more popular?
Based on our record, 20-Things seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | 20-things.com | diffyn.com |
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What each product offers, as listed by its team.

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The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing 20-Things and Diffyn.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Diffyn's answer:
React, Next.js, POSTGRESQL
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
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Recommendations tracked on public social media and blogs since March 2021.

Rewriting https://20-things.com in TS and React (new frontend: https://client.20-things.com). - Source: Hacker News / almost 4 years ago
I am building something similar (https://20-things.com) where the idea is to have the frontpage only display 20 things. No paging, no endless scrolling. Good luck with your project! - Source: Hacker News / almost 4 years ago
So you're telling me that my startup (http://20-things.com) which aims to compete with reddit - is not bound to fail at launch? :). Source: almost 5 years ago
Tracking Diffyn since Jun 2025.
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