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

MarketMan
MarginEdge
Craftable
WISK
BevSpot
Kitchen CUT
Optimum Control
Counts, recipe costing, purchase orders, invoice scanning, and real COGS for $50/month flat. Built by a restaurant owner. 14-day free trial — nothing charged until it ends, cancel in one click.

Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | diffyn.com | getshelfcount.com |
| Pricing | ||
| Platforms | ||
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Diffyn yet.
ShelfCount is inventory management, recipe costing, and true COGS built for independent restaurants — created by a restaurant owner who was tired of MarketMan's complexity and pricing. Pricing: $50/month flat, month-to-month, cancel anytime. No per-seat fees, no tiers, unlimited team members and...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
No analysis of ShelfCount.win yet.
Walkthroughs and reviews on video.
The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
No ShelfCount.win videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Diffyn and ShelfCount.win.
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.
ShelfCount.win's answer:
ShelfCount charges one flat $50/month fee with unlimited team members and unlimited storage locations, no per-seat pricing and no tiers. It combines inventory counts (from any phone, no app install), recipe and prep-recipe costing, invoice/receipt scanning, purchase ordering, and theoretical vs. actual COGS in one tool built specifically for independent restaurants.
Diffyn's answer
Diffyn is the platform that specializes on both change management and multi-model analysis.
ShelfCount.win's answer:
ShelfCount was built by a restaurant owner who found existing tools like MarketMan overpriced and overcomplicated for a single independent location. It covers the same core workflow — counts, recipe costing, invoice scanning, purchase orders, and COGS — at one flat rate with unlimited users and locations, backed by a 14-day free trial and one-click cancellation. A $299 concierge migration (including from MarketMan) is available for anyone switching over.
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.
ShelfCount.win's answer:
Independent restaurants, cafes, and coffee shops that need real inventory counts, recipe costing, and COGS tracking without enterprise-level pricing or complexity — typically single-location or small multi-location operators.
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.
ShelfCount.win's answer:
ShelfCount was built by a restaurant owner who was frustrated with the cost and complexity of existing inventory platforms like MarketMan for running a single independent restaurant. The goal was a simpler, flat-rate tool that still covers the essentials — counts, recipe costing, invoice scanning, purchase ordering, and COGS — without per-seat fees or enterprise sales cycles.
Share your experience with using Diffyn and ShelfCount.win. For example, how are they different and which one is better?