ClauseCheck - Contract Diff

Compare two contracts side by side. Every change highlighted in red and green. Export a PDF report. OCR for scanned PDFs. 100% on-device.

ClauseCheck — Compare Contracts Side by Side

ClauseCheck lets you compare two contract documents and instantly see every difference, paragraph by paragraph, character by character — all on your device, completely offline.

HOW IT WORKS

1. Pick two PDFs or two Word (.docx) files
2. ClauseCheck extracts and aligns the text
3. Review changes in a clean side-by-side view
4. Export a highlighted PDF report and share it

KEY FEATURES

• Paragraph-level diff with inline character highlighting See exactly which words changed — not just which paragraphs differ. Deletions are shown in red strikethrough, additions in green.

• Two view modes "All" shows the full document with changes marked. "Changes Only" hides unchanged paragraphs so you focus on what matters.

• Scanned PDF support (NEW in 1.1) No text layer? No problem. Built-in OCR extracts text from scanned PDFs using Apple's Vision framework — entirely on device.

• Word document support Compare .docx files with clean paragraph-level accuracy.

• PDF export with highlights Generate a professional comparison report with red/green highlighting that prints correctly. Share it directly via the system share sheet.

• History Every comparison is saved automatically. Reopen, share, or delete past reports at any time.

• Face ID / Touch ID lock Keep your contract comparisons private with biometric protection.

• Works with PDF and Word (.docx) Compare PDF vs PDF, or Word vs Word. Both formats supported.

PRIVACY FIRST All processing happens locally on your device. No documents are ever uploaded to a server. No account required. No internet needed.

From the maker of JianBox, VoxSafe & CalMerge.