Software Alternatives & Startups

CertShield.app VS SubDoc

Compare CertShield.app VS SubDoc and see what are their differences

CertShield.app

AI-powered COI tracking for US property managers and contractors. Reads certificates of insurance, flags expired coverage and missing endorsements, and chases vendor renewals automatically. Human-reviewed. From $99/month.

Rating
0 reviews
Pricing
Paid Free trial $99 / Monthly (Starter — 25 vendors)
SubDoc

SubDoc is COI tracking and vendor compliance software for contractors and property managers. Collect, verify, and track subcontractor Certificates of Insurance automatically, with AI OCR, expiration alerts, and no spreadsheets.

Rating
0 reviews
Pricing
Freemium Free trial $20 / Monthly

Which is more popular?

Compliance Management popularity
61% vs 39%
alternatives listed
24 vs 7

Base details

Website, pricing, platforms and company facts side by side.

CertShield.app
SubDoc
Website getcertshield.app subdoc.io
Pricing
Paid Free trial $99 / Monthly (Starter — 25 vendors) Official pricing
Freemium Free trial $20 / Monthly Official pricing
Platforms
Web SaaS Browser Based
—
Company Startup from the United States · 1 - 9 employees · 2026 —
Listed in

About CertShield.app and SubDoc

In their own words, as submitted to SaaSHub.

CertShield.app
SubDoc

CertShield reads vendor insurance certificates with AI — so the liability never lands on you. US property managers and general contractors are legally exposed every time a vendor's insurance lapses. Most track certificates (COIs) in spreadsheets, where expirations slip through and endorsements...

Read more about CertShield.app

SubDoc is Certificate of Insurance (COI) tracking and vendor compliance software for general contractors, subcontractors, and property managers. It replaces spreadsheets and email chasing by collecting, verifying, and monitoring insurance documents in one place, so no subcontractor ever works...

Read more about SubDoc

Features and specs

What each product offers, as listed by its team.

CertShield.app 8 features
SubDoc 5 features
  • AI COI Reading
    Extracts limits, dates, carriers, and endorsements from any ACORD 25 certificate PDF in seconds
  • Endorsement Verification
    Checks CG 20 10 / CG 20 37 additional-insured forms and waiver of subrogation, not just the cert's front page
  • Requirements Engine
    Pass/fail checks against your own rules, by vendor trade and by property
  • Human Review
    Every uncertain result is verified by a person before publishing; customer gives final sign-off
  • Automatic Renewal Chasing
    Email reminders to vendors and their insurance agents in English and Spanish before coverage expires
  • Compliance Dashboard
    Traffic-light view of every vendor: compliant, expiring, or non-compliant
  • Audit Trail & Reports
    Append-only document history and one-click compliance reports, audit-ready
  • Free COI Audit
    Send 3 vendor certificates, get a full compliance report within 24 hours, no cost
  • Simple documentation focus
    SubDoc appears designed as a streamlined tool for creating and managing documentation, which can make it easier for teams to get started without a steep learning curve compared to more complex platforms.
  • Modern interface
    Newer documentation tools like SubDoc often prioritize clean, modern UI/UX design, making the writing and editing experience more pleasant than older legacy tools.
  • Potentially lower cost
    As a newer or niche player in the documentation space, SubDoc may offer more competitive pricing compared to established enterprise documentation platforms.
  • Focused feature set
    By specializing in documentation rather than trying to be an all-in-one platform, SubDoc may offer more refined and purpose-built features for that specific use case.
  • Easier onboarding for small teams
    Smaller or simpler tools like SubDoc are often quicker to set up and onboard new team members, which benefits startups or small teams needing fast deployment.

Analysis

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

CertShield.app
SubDoc

No analysis of CertShield.app yet.

Overall verdict

  • I don't have verified, up-to-date information about SubDoc (subdoc.io) to make a confident assessment of its quality, features, or reputation. I'd recommend checking recent user reviews, the official website, and independent comparison sites before making a decision.

Why this product is good

  • Specific details about SubDoc's features, pricing, and performance are not available to me
  • I cannot verify current user satisfaction or reliability metrics for this product
  • Product offerings and quality can change over time, making unverified claims risky

Recommended for

  • Users who can independently research and verify SubDoc's current features and reviews
  • Those willing to test the product themselves via a free trial or demo if available
  • Buyers who prioritize checking recent, verified user testimonials before committing

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
CertShield.app
SubDoc
61% 61%
39% 39%
0% 0%
100% 100%
100% 100%
0% 0%
54% 54%
46% 46%

Questions & Answers

As answered by people managing CertShield.app and SubDoc.

What makes your product unique?

CertShield.app's answer

Most COI tools only read the front page of a certificate. CertShield verifies the parts that actually protect you — additional-insured endorsement forms (CG 20 10 / CG 20 37) and waiver of subrogation wording — and pairs AI speed with human review: every uncertain result is verified by a person before it's published, and the customer always gives the final sign-off. We're also honest about limits: no tool can auto-detect a silent mid-term cancellation, so we mitigate it with agent confirmations instead of overclaiming.

SubDoc's answer:

SubDoc offers a self-service compliance platform with zero setup friction. Instead of forcing subcontractors to register accounts and create logins (the leading cause of collection delays), SubDoc sends a secure, passwordless magic link where vendors can upload certificates in seconds. It also features built-in AI-powered OCR that automatically scans uploaded documents to extract policy numbers, limits, dates, and endorsement compliance status (Additional Insured, Waiver of Subrogation) instantly.

Why should a person choose your product over its competitors?

CertShield.app's answer

Enterprise COI platforms like myCOI and TrustLayer cost $8,000–25,000 per year with annual contracts and sales-team onboarding — built for companies with thousands of vendors. CertShield delivers the same category of protection from $99/month, is live in a day, and has no lock-in. If you manage 20–200 vendors and currently track certificates in a spreadsheet, CertShield is built exactly for you. Every plan starts with a free 3-certificate audit so you can see results on your own vendors before paying.

SubDoc's answer:

Traditional compliance tracking platforms (like TrustLayer, myCOI, or Certificial) are sales-led, expensive, and introduce high friction for vendors. Operations teams choose SubDoc because it is fully self-service, publishes flat and affordable pricing transparently, supports international multi-currency tracking out-of-the-box, and eliminates subcontractor login friction entirely.

How would you describe the primary audience of your product?

CertShield.app's answer

US property management companies (20–2,000 units) and small-to-mid general contractors who work with rosters of vendors and subcontractors — plumbers, roofers, HVAC, landscapers — and are responsible for verifying each vendor's insurance. Typically the owner, operations director, or office manager who currently tracks COIs manually.

SubDoc's answer:

SubDoc's primary audience includes commercial general contractors, subcontractors, property managers, compliance administrators, and mid-market operations teams who need to track insurance certificates (COIs), W-9s, and licensing requirements across 5 to 500+ vendors without enterprise complexity or cost.

What's the story behind your product?

CertShield.app's answer

CertShield started with a simple observation: a single uninsured vendor can turn into a six-figure lawsuit for a property manager, yet most small firms track insurance certificates in spreadsheets where expirations slip through and endorsements get missed. Enterprise tools existed but priced out everyone below the mid-market. As a solo technical founder, I built CertShield to give smaller firms the same protection — AI does the reading, a human verifies the results, and the price fits an SMB budget.

SubDoc's answer:

Tracking contractor insurance compliance is notoriously painful. Teams are usually stuck between chaotic manual spreadsheets or bloated, expensive enterprise software. SubDoc was created to fill this gap: providing a simple, modern, self-service tracker that automates the chasing via magic links and uses smart AI extraction to speed up verification, giving operations teams their time back.

Which are the primary technologies used for building your product?

CertShield.app's answer

Next.js and TypeScript on the frontend, Postgres for data, and Anthropic's Claude for AI document extraction — with per-field confidence scoring and a human review queue on top. US-hosted, encrypted in transit and at rest.

User comments

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Alternatives to CertShield.app and SubDoc

When comparing CertShield.app and SubDoc, you can also consider the following products.