
Inkpact
Cardly
On-demand personalised written marketing at scale. Welcome to the growing tradition in modern marketing with the simple method of written letters. You type, we write. Using the latest robotics we're truly on-demand and at scale.

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

Website, pricing, platforms and company facts side by side.
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| Website | penned.uk | diffyn.com |
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| Platforms | — | |
| Company | 2022 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Penned delivers on-demand personalised written letters, notes or cards on businesses behalf. We enable you to bring the traditional but lost art form of handwriting into this modern age. It's as simple as you type, we write. In a few simple steps Penned will print, write and post your...
No description of Diffyn yet.
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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 Penned UK 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.
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