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

Stripe Payment Links
Lemon Squeezy
PayPal.Me
Gumroad
Make Any Payment
Payfunnels
Payscape POS
Freelancers and small teams deserve tools that value their work. Spayce makes payment requests smooth, confident and on-brand, so getting paid reflects the quality of your work.

Website, pricing, platforms and company facts side by side.
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| Website | diffyn.com | spayce.it |
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| Company | — | Startup from France · 1 - 9 employees · 2025 |
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In their own words, as submitted to SaaSHub.


No description of Diffyn yet.
Spayce is a simple tool to create branded payment pages with optional escrow to secure the transaction. Instead of sending a generic payment link or asking for a bank transfer, you can send a beautiful, professional page that reflects your visual identity. Add your logo, your colors, an image or...
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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 Spayce.it.
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.
Spayce.it's answer:
Spayce combines payment links with brand identity and optional escrow. Instead of sending a generic payment link, you can create a page that reflects your visual universe (logo, colors, image or video), and let the client pay securely. It’s the only payment tool that focuses on trust and client experience at the moment of payment.
Diffyn's answer
Diffyn is the platform that specializes on both change management and multi-model analysis.
Spayce.it's answer:
Unlike Stripe Payment Links or PayPal.Me, Spayce lets you personalize the whole payment experience. And unlike platforms such as Malt, Spayce does not act as an intermediary or take a commission. You keep full control of the relationship and the funds, with a simple option to hold payment in escrow when needed.
Diffyn's answer
React, Next.js, POSTGRESQL
Spayce.it's answer:
The application is built with Bubble.io, integrated with Stripe Connect for secure payments and escrow, and hosted on scalable cloud infrastructure (Cloudflare CDN).
Diffyn's answer
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Spayce.it's answer:
Freelancers, agencies, small businesses and organizations that want to request payments in a professional, clear and branded way — without dealing with complex invoicing software or marketplace platforms.
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.
Spayce.it's answer:
Spayce was created after experiencing how awkward and unbranded payment requests can feel when working with clients. The idea came from freelancing: you can do great work and still feel uncomfortable asking to be paid. Spayce makes this moment smooth, confident and aligned with your identity.
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