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DiffiCat
Plans and prices
Free trial
100 captured pages without sign-in or 500 when signed in · up to 100 pairs per run · all checks and viewport widths
Read 15 Oct 2026 · difficat.com
Agent API screenshot
POST /api/v1/screenshots · full-page screenshot of one URL
Read 15 Oct 2026 · difficat.com
Agent API comparison
POST /api/v1/jobs · no subscription or minimum · status/report reads free
Read 15 Oct 2026 · difficat.com
Agent API discovery
POST /api/v1/discover · page discovery
Read 15 Oct 2026 · difficat.com
Pro
5,000 captured pages/month shared by web app and Agent API · overage $0.01/page under $50 default cap · up to 10,000 pairs/run · commercial license
Read 15 Oct 2026 · difficat.com
Pro annual
5,000 captured pages/month shared by web app and Agent API · overage $0.01/page under $50 default cap · up to 10,000 pairs/run · commercial license
Read 15 Oct 2026 · difficat.com
Free
Desktop app has no usage limits · Browser: 500 comparison runs/hour · 200 page discoveries/hour · 2,000 pages/day
Read 1 Oct 2026 · difficat.com
On the record
- Analytics
- The website and browser app load Google Analytics 4 and use cookies for usage measurement.difficat.com · read 15 Oct 2026
- API charge limitation
- Settled charges are final; cancellation, failed jobs or partial results do not reduce the charge.difficat.com · read 15 Oct 2026
- API documentation
- The linked OpenAPI document provides routes, schemas, examples and live x-payment-info pricing.difficat.com · read 15 Oct 2026
- API execution limits
- A job can name at most 20 hosts and three jobs may run concurrently per caller.difficat.com · read 15 Oct 2026
- API free allowance
- Unauthenticated clients receive a daily allowance of 10 comparison pages, three discoveries and three screenshots per client address.difficat.com · read 15 Oct 2026
- API payment
- Paid API calls use HTTP 402 payment challenges and can be settled with USDC on Base or prepaid keys.difficat.com · read 15 Oct 2026
- Authentication
- HTTP Basic Authentication credentials can be entered separately for source and target sites and persist for the run.difficat.com · read 15 Oct 2026
- Browser data storage
- Browser comparisons are fetched by DiffiCat servers and reports and screenshots are stored in Google Cloud Storage for the session.difficat.com · read 15 Oct 2026
- Browser limits
- The browser trial allows up to 100 pairs per run, while the overall run ceiling is 10,000 pairs.difficat.com · read 15 Oct 2026
- Browser storage
- The browser version stores reports and screenshots in Google Cloud Storage for the duration of the browser session.difficat.com · read 1 Oct 2026
- Commercial licensing
- The Pro subscription supplies the commercial license, while free browser and desktop use is described as personal use.difficat.com · read 15 Oct 2026
- Content checks
- It compares titles, headings, meta descriptions, and body text using a 90% word-overlap threshold.difficat.com · read 1 Oct 2026
- Content comparison
- It compares page titles, headings, meta descriptions and body text using a 90% word-overlap threshold with word-level differences.difficat.com · read 15 Oct 2026
- Credentials handling
- Desktop credentials remain local, while browser credentials are used during fetching and are not stored with reports.difficat.com · read 15 Oct 2026
- Desktop application
- Native downloads are provided for macOS, Windows 64-bit and Linux x64 AppImage.difficat.com · read 15 Oct 2026
- Desktop privacy
- The desktop app reports no telemetry or analytics, uploads no URLs or reports, and keeps output on the local disk.difficat.com · read 15 Oct 2026
- Downloads
- The latest release provides macOS DMG files, a Windows 64-bit EXE installer, and a Linux x64 AppImage; releases include code signing, macOS notarization, SHA-256 checksums, and GPG signatures.difficat.com · read 1 Oct 2026
- Existence check
- It compares HTTP status responses, detecting 404s, broken redirects, authentication walls, redirect loops and server errors.difficat.com · read 15 Oct 2026
