
Cursor
bolt.new
Lovable
Velobase Cloud
Windsurf Editor
Supabase
Firebase
Production-grade apps. Every time.

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, Stellify seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | stellisoft.com | diffyn.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United Kingdom · 1 - 9 employees · 2025 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


AI-native Laravel development platform. Build full-stack Laravel/Vue apps in your browser with an AI agent that understands your entire codebase — not just the file it's looking at.
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.


No analysis of Stellify yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Watch Stellify build a Web Application with AI in 6 minutes
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 Stellify and Diffyn.
Stellify's answer
The core differentiator is the architecture — code stored as structured JSON in a database rather than text files. That single decision creates a cascade of things nobody else can do: AI can actually understand your codebase. Every other AI coding tool (Cursor, Windsurf, Copilot, Replit) works by feeding text files into context windows and hoping the model figures out what's going on. Stellify gives AI a queryable database. It can ask "show me every method that touches the User model" and get a precise answer, not a grep through strings. Surgical refactoring at scale. Because every method, statement, and clause has its own UUID and lives as a discrete record, you can rename, move, or restructure things across an entire codebase programmatically. No regex find-and-replace, no "hope I didn't miss one." Conflict-free collaboration. Two developers can't edit the same text file simultaneously without merge conflicts. But when code is atomic database records, two people can work on different methods in the same file without ever colliding. Git merge conflicts essentially stop existing. MCP-native from the ground up. Stellify isn't bolting AI on as an afterthought. The MCP server gives AI agents real, structured tools — create a file, add a method, search the codebase, build UI elements. It's not "paste this code block" — it's actual tool use. One environment, no tool-switching. Editor, terminal, database viewer, deployment, UI builder, method library — all in the browser. The "Xcode for web development" vision, but for Laravel/Vue/Tailwind.
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.
Stellify's answer
If you're building web apps and you want AI that produces production-grade applications, Stellify is the only platform where the codebase itself is designed for AI to work with. Everyone else is retrofitting AI onto tools that were built for humans typing text. Stellify was built from the ground up for a world where AI is doing the building. The trade-off is the opinionated stack. If you need to work with a specific stack, Stellify isn't for you. But if you primarily care about the web app you're shipping, nothing else comes close to this level of integration between your code, your tools, and your AI.
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 Stellify and Diffyn. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Hi I'm Matt. I've built stellisoft.com. As a developer I find it incredible to work with to the point that it would pain me to build a website using a text editor. What would it take for me to convince you to do the same? Source: over 4 years ago
Stellisoft.com makes it incredibly fast and easy to create your own components, even for use in your own projects outside of the platform. Source: over 4 years ago
We're looking for people to use the platform and work with us to make it better. Have a play with the demo on our homepage: stellisoft.com, and if you feel you have something to contribute then leave your details in the comments below... Source: about 5 years ago
Tracking Diffyn since Jun 2025.
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Open-source framework for turning AI prototypes into production-ready AI SaaS with billing, auth, deployment, anti-abuse, multi-LLM chat, workers, lifecycle email, and admin tools.
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Tomorrow's editor, today. Windsurf Editor is the first AI agent-powered IDE that keeps developers in the flow. Available today on Mac, Windows, and Linux.
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