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

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Website, pricing, platforms and company facts side by side.
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| Website | diffyn.com | socialdeck.ai |
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| Company | — | Startup from Hong Kong · 50 - 99 employees |
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In their own words, as submitted to SaaSHub.


No description of Diffyn yet.
Anonymous Instagram Story Viewer that is free and requires no login. Just enter an Instagram username or link to view and download stories anonymously in seconds.
What each product offers, as listed by its team.


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The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
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As answered by people managing Diffyn and SocialDeck.
SocialDeck's answer:
While we respect the privacy of our individual users and do not track specific identities, our tool is widely utilized by professionals at:
Independent Social Media Marketing Agencies
Freelance Content Strategists
E-commerce Brand Managers
Digital Journalism and Media Research Firms
Competitive Intelligence Consultants
Diffyn's answer
Diffyn is the platform that specializes on both change management and multi-model analysis.
SocialDeck's answer:
Users choose us because of three core advantages:
Safety & No Login: Most competitors eventually prompt for a login or contain malware; SocialDeck is 100% web-based and requires no personal data.
Original Quality: We don’t compress images or videos. What you see and download is the original high-resolution content directly from Instagram's servers.
Stability: Our infrastructure is optimized to handle Instagram's frequent algorithm updates, ensuring the service remains functional while other tools often crash or go offline.
Diffyn's answer
React, Next.js, POSTGRESQL
SocialDeck's answer:
We utilize a modern, scalable tech stack to ensure high performance:
Backend: Node.js and Python-based scraping engines designed for high-concurrency and real-time data fetching.
Frontend: React.js for a fast, responsive, and mobile-friendly UI.
Cloud Infrastructure: AWS (Amazon Web Services) for global CDN delivery, ensuring low latency regardless of the user's location.
Security: Advanced SSL encryption and automated proxy rotation to ensure anonymous requests and protect user privacy.
Diffyn's answer
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
SocialDeck's answer:
Our primary audience consists of three main groups:
Privacy-Conscious Users: Individuals who want to keep up with friends or public figures without appearing in their "viewed" list.
Digital Marketers & Competitor Analysts: Professionals who need to monitor competitors' daily content strategies and saved highlights anonymously for market research.
Content Creators: Influencers looking for inspiration or wanting to save specific content assets from the public domain for mood boarding and trend analysis.
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.
SocialDeck's answer:
The project started when our team of social media enthusiasts noticed a growing "privacy gap" on Instagram. We realized that many people felt hesitant to view stories because of the social pressure of the "seen" notification. We built SocialDeck.ai to democratize access to public information, giving users the freedom to explore content without the fear of being tracked, all while maintaining a clean, ad-light interface that prioritizes user experience over profit.
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.
SocialDeck's answer:
The uniqueness of SocialDeck’s tool lies in its "Zero-Footprint" philosophy combined with extreme speed. Unlike many tools that require a browser extension or display intrusive ads, our viewer is a pure web-based solution. It offers a seamless, high-definition (HD) preview and download experience that bypasses the need for an Instagram API login, ensuring that the user’s identity remains 100% encrypted and hidden from the story creator's "seen" list.
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