
Signal
Telegram
Element.io
Session Messaging App
Briar
Tox
Threema
π SimpleX - the most private and secure chat - now with double ratchet E2E encryption!

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, SimpleX chat seems to be more popular. It has been mentioned 75 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | simplex.chat | diffyn.com |
| Pricing | ||
| Platforms | β | |
| Company | 2019 | β |
| Listed in |
In their own words, as submitted to SaaSHub.


SimpleX is a new platform for distributed Internet applications where the privacy of the messages and the network matters most. The current version is stable, robust and can be used from the terminal (command line) on all major desktop platforms (Linux/Mac/Win) and on Android phones in Termux!...
No description of Diffyn yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
SimpleX Chat is highly recommended for privacy-conscious individuals, activists, journalists, or anyone who handles sensitive information and values secure communication. It is also a good option for those interested in trying out decentralized, open-source communication platforms.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No SimpleX chat videos yet. You could help us improve this page by suggesting one.
The Ultimate Prompt Tool for Creators β Visualize & Organize with Diffyn
How often each product is chosen within a category, 0β100% relative to the other.


As answered by people managing SimpleX chat 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.
Share your experience with using SimpleX chat and Diffyn. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


One of the recent secure messaging apps that has entered the scene is SimpleX Chat. It claims to be the first messaging app that has no user IDs. This private messaging app uses its proprietary platform called...
We have no reviews of Diffyn yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Anyway, copying and reproducing is a great way to learn. It also train the mind to decompose every applications in small pieces. The same could have been done for Briar, SimpleX or Telegram applications, all of them are open-source and... - Source: dev.to / 4 months ago
Https://simplex.chat/ It already has quite big communities https://simplex.chat/directory/. - Source: Hacker News / 8 months ago
I like the way SimpleXChat works. Good luck getting anyone to switch to it though. https://simplex.chat/. - Source: Hacker News / 11 months ago
Tracking Diffyn since Jun 2025.
When comparing SimpleX chat and Diffyn, you can also consider the following products.

Fast, simple & secure messaging. Privacy that fits in your pocket.
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Telegram is a messaging app with a focus on speed and security. Itβs superfast, simple and free.
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Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.
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Session is a private messenger that aims to remove any chance of metadata collection by routing all messages through an onion routing network.
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Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
Compare Tox to SimpleX chat or Diffyn: