From signing to end of term,
we stand guard for your contract
Not just risk analysis — we track renewal dates, monitor case law updates, reconcile verbal promises vs. contract text, and build a fingerprint of your counterparties. One subscription, whole-life protection.
End-to-end encrypted · Never used for AI training · Self-destruct mode
Four things ChatGPT structurally cannot do
Most AI tools stop at a one-shot analysis; ContractCheck also helps you track post-signing risks and key deadlines.
Red/Amber/Green clause flags
Every clause tagged by risk level with plain-language explanation — this is the baseline, other tools can do it too.
Contract Lifecycle Guardian
Signing is not the end. We track renewal dates, refund windows, non-compete expirations, auto-renewal countdowns — and email you before each deadline.
Verbal Promise Reconciliation
Did they actually write down what they agreed to? Upload your negotiation recording or email thread — AI finds what was said but not written.
Counterparty Fingerprint DB
The system tells you: "This company's contracts typically bury Trap X in Section 7." Collective memory across users — patterns you'd never see alone.
Case Law Monitoring
Has a court just interpreted a clause you signed differently? We'll tell you. Risk levels update over time — not set-and-forget.
Chinese/English side-by-side
English contract you can't read? Get Traditional Chinese translation and explanation clause by clause.
Your contract — only you can see it
We engineered it so even our admins can't read your files
Never used for training
Your contract is covered by Anthropic's enterprise data policy — never used to train models, and auto-deleted within 30 days. Zero Retention available on request for enterprise customers.
Self-destruct mode (Pro)
When enabled, contract and report are hard-deleted 10 minutes after you close the tab. We can't recover them either.
Database-level isolation (RLS)
Supabase Row Level Security enforces per-user isolation at the database layer. Not application logic. Database-native.
End-to-end encryption
TLS 1.3 in transit. AES-256 at rest. pgcrypto on sensitive columns as a second layer.
Engineered to be unreadable
We have no admin endpoint that can read contract plaintext. It's architectural, not a promise.
No third parties
No Google Vision, AWS Textract, or third-party OCR or analytics. Contracts only ever touch Anthropic.
Pricing
Every plan is end-to-end encrypted; Anthropic never uses data for training
Pro
Individual professionals
- Unlimited reviews
- Contract Lifecycle Guardian
- Case law monitoring & risk upgrades
- Verbal promise reconciliation
- Counterparty fingerprint database
- PDF report export
- Chinese/English side-by-side
- Permanent history
- Self-destruct mode
Team
Up to 5 members
- Everything in Pro
- 5 team seats
- Shared contract folders
- Team risk dashboard
- Priority support
Enterprise
Mid to large companies
- Everything in Team
- Zero Data Retention
- Private counterparty fingerprint DB
- DPA / security audit docs
- Custom API integration
- Dedicated support
Signing in automatically starts a 3-day Pro trial that downgrades to Free when it ends (no charge). First purchase of Pro gets 50% off, once per account.
FAQ
Is this legal advice?
No. ContractCheck is a risk-flagging tool — it helps you spot potentially unfavorable clauses and missing protections. For material decisions, always consult a lawyer. Every report carries this disclaimer.
Will my contracts be used to train AI?
No. Our Anthropic API calls run with Zero Retention enabled. Your contract is wiped from Anthropic's servers immediately after analysis and is never used for model training. It's contractual, not just a policy.
How long are contracts stored? Can I delete them?
Free: 7 days auto-delete. Pro: choose self-destruct (hard-deleted 10 min after closing) or keep up to 90 days. You can one-click delete everything from your account page, including backups within 72 hours.
What contract types are supported?
Freelance/contractor agreements, employment, NDAs, SaaS terms, residential leases, equity/investment docs (SAFE, term sheets), POs — covering about 80% of day-to-day needs. For specialized areas (derivatives, cross-border M&A), don't rely on AI alone.
What file formats are supported?
PDF, DOCX, PNG/JPG (OCR), and plain text paste. Up to 100,000 characters per contract.
Why not use Google OCR? Wouldn't it be faster?
Because contracts are highly sensitive business data. We made the call: contracts only go to a single LLM vendor (Anthropic). Adding a third-party OCR or analytics service would expand the risk surface. A slightly slower pipeline is worth it.
How do the trial and first-purchase discount work?
Your first login automatically starts a 3-day Pro trial. You get every Pro feature for those 3 days, and when it ends the account quietly downgrades to Free — no charges, no action required. You can upgrade to Pro anytime during or after the trial, and every account gets 50% off its first Pro purchase (one-time). Your subscription price is locked in; future price changes won't affect you.