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

DocAcquire
Upload PDFs, office docs, or scans, describe the data you need in plain language, and get a spreadsheet, CSV, or JSON back. No manual entry, no brittle templates.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | shield.com | stract-api.com |
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| Company | Startup from Singapore · 100 - 249 employees · 2008 | Startup from the United States · 1 - 9 employees · 2026 |
| 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 Stract API yet.
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
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Walkthroughs and reviews on video.
SHIELD x HappyFresh(Online grocery marketplace)
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing SHIELD and Stract API.
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.
Stract API's answer:
Stract API is different because it lets the people closest to the questions get answers straight from their documents, with no templates, no custom tooling and no manual data entry. You upload your files, describe the data you need in plain language, and Stract API runs every document in the batch from start to finish. It returns clean, structured results you can put to work right away. You choose the model that fits the job, from fast, economical options for high-volume work to the newest, most capable LLMs for your highest-stakes analysis. Under the hood, it draws on techniques from the latest AI research to improve the quality of what gets extracted. The same analysis costs less than 10% of the equivalent staff time, so your team can skip the grind and go straight to analysis. And because sensitive work is the norm for many of your users, Stract API is fully SOC2 compliant, so your documents stay yours.
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.
Stract API's answer:
A person should choose Stract API over its competitors because it gets them from a pile of documents to usable data with the least effort and risk. They describe what they need in plain language, so they don't build templates or learn a tool's vocabulary. They can use the point-and-click UI or the API for automated workflows, so the same product works for a one-off project and for a recurring pipeline. They also keep control over the tradeoff that matters most to them. They pick the model for each job, from fast, economical options for high-volume work to the newest, most capable LLMs for high-stakes analysis, instead of paying top-tier prices for everything. The extraction itself uses techniques from the latest AI research to improve quality. The cost is under 10% of the equivalent staff time, and results come back fast even on huge batches. Finally, Stract API is fully SOC2 compliant, which matters to teams handling case files, sources and survey data. Together, that means a team clears its "Needs Attention" pile and gets to analysis faster, without trading security or depth for speed.
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.
Stract API's answer:
The primary audience for Stract API is small-to-mid-sized teams, along with enterprises, that run recurring, document-heavy workflows and need to pull consistent information out of growing batches of files faster than manual review allows. These teams are typically staff-constrained, facing rising intake volumes of contracts, case files, forms or survey responses, and working from question lists that keep changing over time. Buyers tend to be operations leaders, legal and contract review leads, insurance claims intake leads, research leads, marketing and CRM operations managers, and engineering teams responsible for pipeline automation. Day-to-day users include the document reviewers who need the extracted information and the developers and analysts who feed that structured output into downstream systems. The audience spans insurance and claims, legal (contracts, discovery and case files), journalism (FOIA releases, court records and meeting minutes), marketing (reviews, support tickets and call transcripts), social science (surveys, interviews and field notes) and academic research. Stract API is a weaker fit for organizations that only need occasional one-off extraction from a handful of documents, or teams committed to strictly template- or regex-driven extraction rather than plain-language field specifications.
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.
Stract API's answer:
The primary technologies used in build Stract API are LLMs, Typescript, React, and Java.
SHIELD's answer
inDrive, Truemoney, Maya, Swiggy, Buymed, Atlas, MPL,
Stract API's answer:
Legal services and title companies are growing segments for Stract API
Stract API's answer:
Stract API grew out of founder Matt Moreno's repeated frustration with the same problem. At a construction tech startup in Google's accelerator, his team built an LLM feature that matched a crew's plain-language daily report to labor and material options. It worked, but it was fragile. Parsing the output was hard, bad output was constant, and any change to the structure broke it. When he asked a Google director whether a product existed to extract arbitrary structured data from unstructured text, the director said no, but that Google probably should build one. Later, on a venture to automate land title research, he again spent tens of hours building flexible document extraction. That work pulled him away from the core mission, and he wished a third-party service would handle it. When he had time this summer (2026), he found few existing solutions. Remembering the director's words, he built Stract API, which took five months to reach MVP. It lets users describe the information they want, from simple facts to judgment-heavy analysis, and returns a spreadsheet, CSV or JSON from their documents.
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When comparing SHIELD and Stract API, you can also consider the following products.

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Fraud detection and prevention using browser fingerprinting with 99.5% accuracy. Stops account sharing, payment processing fraud and gaming.
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The easiest way to protect your users from getting hacked
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Visitor identification behind VPN, proxy, and anti-detect masking with up to 99% accuracy and risk scoring, so you can assess traffic quality and prevent abuse and fraud: fake signups, multi-accounting, and bonus abuse. 5,000 free identifications.
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