Fast document comparison.
Built for Mac.
Quickly compare Word documents, generate redlines, and analyze changes. At a fraction of the cost of traditional comparison software.
Claude
CodexComing soon4.1 Invoicing. Supplier shall invoice Buyer monthly for all Products delivered during the preceding calendar month, and each invoice shall reference the applicable Purchase Order number.
4.2 Payment. Buyer shall pay all undisputed amounts set forth in a conforming invoice within thirty (30) forty-five (45) days of receipt of such invoice, by wire transfer to the account designated by Supplier in writing.
4.3 Late Payments. Any undisputed amount not paid when due shall accrue interest at one and one-half percent (1.5%) one percent (1.0%) per month, or the maximum rate permitted by law, whichever is less.
4.4 Disputed Amounts. Buyer shall notify Supplier in writing of any disputed amount within ten (10) business days of the invoice date, and the parties shall negotiate in good faith to resolve such dispute.
Features
Everything you need to compare and review redlines.
Annoyed by bloated enterprise comparison software? We are too. That's why RedlineIQ is purpose-built for ease of use, clear redline review, and practical change analysis.
Comparison
Compare your documents
Compare Word documents locally. No upload, browser tab, or copy-pasting. PDF comparison is coming soon.
Show me what changed.
Drop one DOCX for each version, or browse from this Mac.
Review
Review every change in place
Every change is grouped by section and location. Click any change to jump straight to it and highlight it in the document.
Assistant
Ask what changed
The built-in assistant helps you understand what changed and links each answer back to the exact redline.
Payment terms loosened. Payment is now due within forty-five (45) days instead of thirty (30) 1, and the late-payment rate dropped from 1.5% to 1.0% per month.
Liability narrowed. Supplier’s aggregate liability is now capped at the fees paid in the prior twelve months 3, and the carve-out for unlimited confidentiality liability was removed 4.
Longer exit runway. Termination for convenience now requires ninety (90) days’ notice, up from sixty (60) 5.
Version history
Track each round of revisions.
Analyze changes across the entire lifecycle of a contract, from the first to the last round of negotiation.
Why Mac
You shouldn't need Windows to redline a contract.
For years, document comparison tools have been Windows-only and priced for the largest firms. Mac users were left to run a virtual machine just to redline, or settle for a compare feature buried deep in Word. RedlineIQ is the native alternative.
No Windows, no VM
Compare contracts in a true macOS app. No Parallels, no remote desktop, no booting Windows just to run a redline.
A pixel-perfect redline, not a text diff
A deterministic engine compares the whole Word document, formatting and moved text included, instead of a plain-text diff that loses detail or an AI that guesses what changed.
A fraction of the cost
Accurate, focused comparison without the per-seat enterprise pricing that keeps the established tools out of reach for most firms.
Comparisons run locally on your Mac†
The comparison happens on your machine. No copy-pasting a contract into a web app, no drafts sent off to a server just to be diffed.
† AI features, such as summaries and analysis, run in the cloud rather than locally.
Coming soon
Works with your favorite AI agents.
Add the RedlineIQ plugin to Claude Desktop or Codex and let your agent run the comparison. Drop in two contracts and ask it to walk you through every change. We're building it now, and waitlist members will get it first.
Private beta
Join the RedlineIQ for Mac waitlist.
We're opening access in small batches as the Mac app moves through beta. Join the list for early-access invitations. When we launch, it'll cost a fraction of what the incumbents charge.
Built by a transactional lawyer who's spent 12 years living in document-comparison tools.