
Figma
Keep Design System
Backlight
Modulor
Brand.ai
Supernova V4
Zeplin
Specify is the Design Data Platform for your design & dev teams:🎨 Collect your design tokens and assets from Figma🤖 Store them in a single source of truth⚡️ Distribute your brand with custom delivery pipelinesGet started for free → specifyapp.com

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, Specify App seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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What each product offers, as listed by its team.


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


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Overall verdict
Why this product is good
Recommended for
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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 Specify App 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 Specify App and Diffyn. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Specify if also a good all-in-one tool I just found yesterday https://specifyapp.com/. Source: about 3 years ago
Today quite some companies are already tackling similar problems. Talking of Knapsack.cloud, Backlight.dev, Specify, Supernova and many more, here. They all deliver value to simplify workflows for setup, integration, documentation and... - Source: dev.to / almost 4 years ago
Https://story.to.design/ Https://specifyapp.com/. - Source: dev.to / about 4 years ago
Tracking Diffyn since Jun 2025.
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Create beautiful and consistence user interface with ease
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Backlight is a unique collaborative platform to build Design Systems code-side.📐 Design tokens🧩 Component code and stories📖 Documentation site📦 Managed release to npmEverything in one place, in a true collaborative workspace.Try 👉 backlight.dev
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Create a style guide & integrate with Sketch, Slack, & Gulp
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Turn Sketch into iOS, Android and React Native in minutes
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