
SEON
FingerprintJS
Rupt
Castle
ShieldLabs
ThumbmarkJS
Sift
Stop fraud and reduce friction across web and mobile apps with real-time device intelligence.

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 | shield.com | diffyn.com |
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| Company | Startup from Singapore · 100 - 249 employees · 2008 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


SHIELD is a device-first fraud intelligence platform built on the world’s most persistent device identification technology across applications and platforms. Powered by SHIELD AI and patented technology (SHIELD Sentinel), SHIELD sets the global standard for device identification (SHIELD Device...
No description of Diffyn yet.
What each product offers, as listed by its team.


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Walkthroughs and reviews on video.
SHIELD x HappyFresh(Online grocery marketplace)
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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 SHIELD and Diffyn.
SHIELD's answer
Most fraud solutions are web-first and rely heavily on personal data and static identifiers that are easily bypassed. They are also often focused on addressing fraud at specific checkpoints. SHIELD is device-first. Fraudsters can spoof data, accounts, and even identities, but they always need a device to act. This is why we stop fraud at the root.
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.
SHIELD's answer
Our plug-and-play SDKs and lightweight JavaScript snippets can be integrated in a matter of hours — not weeks or months. There’s no training period required, enabling your team to start detecting fraud immediately. Most customers see tangible results on day one, with zero disruption to existing workflows.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
SHIELD's answer
SHIELD deliver real-time device intelligence globally, with offices in San Francisco, Singapore, Jakarta, Dubai, London, São Paulo, and more. We are a global team, which helps us stay close to the latest fraud trends, and our clients.
Diffyn's answer:
React, Next.js, POSTGRESQL
SHIELD's answer
SHIELD works with digital businesses across every region and industry where trust and safety are mission-critical. Our customers include global unicorns and fast-scaling platforms in mobility, fintech, e-commerce, igaming, digital identity, and more. If your platform faces fraud, or trust & safety challenges, SHIELD can help you eliminate malicious users and scale growth with confidence.
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.
SHIELD's answer
inDrive, Truemoney, Maya, Swiggy, Buymed, Atlas, MPL,
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Open source browser fingerprinting library with 99% accuracy. Get visitor IDs, detect bots, prevent fraud. Free version available, Pro starts at 15€/month.
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