DiffiCat vs Testsigma
DiffiCat
difficat.comTestsigma
testsigma.comSide by side
| Figure | DiffiCat | Testsigma |
|---|---|---|
| Price from | $24.17/mo | $14/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 7 | 4 |
| Spec score · Browser Testing Software | 9.2 (#3) | 8.5 (#13) |
| REST API | The Agent API exposes discovery, screenshots, comparison jobs, reports, status, cancellation and recovery routes. | The API uses bearer API keys and JSON endpoints to trigger plans, read results, manage projects, cases, steps, data, environments and files. |
| What it does | DiffiCat compares old and new websites for missing pages, content changes and visual regressions during migrations. | Testsigma is an AI-agentic quality platform that generates, executes, self-heals and analyzes automated tests. |
Plans
DiffiCat
- FreeFree
- Free trialFree
- Agent API comparison$0.02, paid once
- Agent API screenshot$0.02, paid once
- Agent API discovery$0.05, paid once
- Pro$29 a month
- Pro annual$290 a year
Testsigma
- Test Management$14 a month
- Test Management Pro$14 a month
- EnterprisePriced on request
- ProPriced on request
In their own words
DiffiCat
DiffiCat compares source and target websites to check page existence, content accuracy, and visual changes during migrations. It checks HTTP status codes, broken redirects, authentication walls, and server errors. Content comparisons cover titles, headings, meta descriptions, and body text, using a 90% word-overlap threshold. For visual regression, it captures full-page screenshots and compares pixels with a configurable threshold that defaults to 0%. Viewport widths can be set to 375px, 768px, or 1440px, or customized from 320px to 2560px. A run can cover up to 10,000 pages; leaving the page limit blank removes the cap on discovered pages. DiffiCat can render JavaScript-driven pages, use HTTP basic authentication for both sites, and capture one or multiple URLs without a second site. Exports are ZIP files containing a plain-text report and PNG screenshots. The desktop app keeps outputs on the user's disk and uploads no URLs or screenshots; browser storage lasts for the browser session. The Free plan costs nothing. Desktop use has no limits for personal use; browser limits apply, and commercial use requires a license.
Testsigma
Testsigma is a platform for planning, designing, executing, analyzing, reporting on and maintaining automated tests. Users can author tests in simple English without programming knowledge. Its AI agents can generate tests from user stories, product requirements documents, Figma designs or existing suites, then execute, analyze and heal them. It supports web, mobile web, Android, iOS and API projects, with unlimited counts for each application type listed on its pricing page. Tests can run in parallel across 3000+ browsers and real devices, locally or in the cloud. Listed integrations include Jenkins, Azure DevOps, Jira, Slack, Microsoft Teams, Google Chat, BrowserStack, Sauce Labs and LambdaTest. Testsigma lists a free plan and trial; Test Management Pro costs $14 a month, billed at $14 per user per month. Pro and Enterprise pricing is custom. Enterprise lists public, private or on-prem cloud deployment, a private grid, IP whitelisting and local testing.