
Auth0
ZITADEL
FusionAuth
WhatsAuth
Kinde
Snyk
Authgear
Open Source User Authentication - An Alternative to Auth0 / Firebase Auth / AWS Cognito

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, SuperTokens seems to be more popular. It has been mentioned 45 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | supertokens.com | diffyn.com |
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| Company | 2019 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


SuperTokens is building open source authentication (as an alternative to Auth0, Firebase and AWS Cognito). Add secure, hassle free authentication to your app in 1 day. We enable startups to launch quicker and focus on their core product offering We're easier to implement as we take a modular...
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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How SuperTokens detects Session Hijacking?
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 SuperTokens 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 SuperTokens 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.


SuberTokens is a self-hosted open-source user authentication backend for startups and companies. It helps developer building a user-based workflow without the complication of complex authentication layer. SuberTokens...
The best part about this library is the level of security it provides with session management. Implementing the library was also easy through the document they provide and with the extensive support on discord...
I used it with MongoDB and Nodejs. It was very robust and took care of all my security issues. It's super easy to implement like it took me somewhere around 2 to 3 days to implement also while installing it doesn't...
We have no reviews of Diffyn yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


SuperTokens is different. It's built like building blocks. - Source: dev.to / 10 months ago
Home page | GitHub Repo | Documentation | Discord community. - Source: dev.to / over 1 year ago
For B2C, Supabase will get you most of the way for small to medium MAU applications. You might need additional services for analytics and monitoring. If you are building a boom-or-bust B2C company (ex. Social media platform, video game,... - Source: dev.to / almost 2 years ago
Tracking Diffyn since Jun 2025.
When comparing SuperTokens and Diffyn, you can also consider the following products.

Auth0 is a program for people to get authentication and authorization services for their own business use.
Compare Auth0 to SuperTokens or Diffyn:


FusionAuth is a CIAM platform that is 100% free for unlimited users.
Compare FusionAuth to SuperTokens or Diffyn:

WhatsAuth: Frictionless OTP for Next-Gen Security
Compare WhatsAuth to SuperTokens or Diffyn:

Kinde provides Authentication tools and infrastructure to helps SaaS businesses accelerate their product development. Every day, Kinde gives the best teams in the world, everything they need to build, secure, monetize, and manage a more modern web
Compare Kinde to SuperTokens or Diffyn:

Snyk helps you use open source and stay secure. Continuously find and fix vulnerabilities for npm, Maven, NuGet, RubyGems, PyPI and much more.
Compare Snyk to SuperTokens or Diffyn: