Features an AI-native conversational QA agent for rapid test authoring, but offers less specialized visual regression reporting than Applitools.
Applitools Eyes records 159,934 monthly visits with -15.7% month-over-month growth and Freemium, Free Trial, Paid, Contact for Pricing pricing. LangTest records 4,478 monthly visits with +1.6% growth and Paid, Contact for Pricing pricing.

Red-team and evaluate AI agents before they reach production
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | applitools.com | synergetics.ai |
| Pricing Model | Freemium, Free Trial, Paid, Contact for Pricing | Paid, Contact for Pricing |
| Monthly Visits | 159.93K (159,934) | 4.48K (4,478) |
| MoM Traffic Delta | -29.85K (-15.7%) | +70 (+1.6%) |
| Primary Market & Share | 🇳🇱 Netherlands (17%) | 🇺🇸 United States (65.1%) |
| Direct Visits / mo | 81.24K | 1.79K |
| User Rating | 4.6 | 4.3 |
| Supported Platforms | Website | Website |

AI-powered visual and functional testing that catches UI bugs on every page
Emulates human perception to ignore harmless rendering noise while flagging meaningful layout, content and accessibility defects.
Captures DOM state once and re-renders it simultaneously across many browsers, viewports and mobile devices.
SDKs and integrations for Playwright, Selenium, Cypress, Storybook, Figma and 60+ CI/CD, SCM and bug-tracking tools.
Record test flows or describe user journeys in plain English to build functional coverage without writing test scripts.

Red-team and evaluate AI agents before they reach production
Adversarial evaluation of agents to surface unsafe, non-compliant or unreliable behaviour before they run against real users and real money.
Measure and track how much fine-tuning private models with LangTrain improves accuracy for your specific domain.
Verify that agent responses are repeatable and reliable enough for regulated workflows such as clinical, lending or claims decisions.
Evaluate agents that work across text, voice, vision and other modalities rather than text alone.
Features an AI-native conversational QA agent for rapid test authoring, but offers less specialized visual regression reporting than Applitools.
Provides comprehensive test automation across web, mobile, and APIs, but requires more manual script setup than Applitools.
Provides comprehensive test automation across web, mobile, and APIs, but requires more manual script setup than Applitools.

Attack-led AI security testing and red teaming
Attack-led AI security testing and red teaming

Free / Open-sourceBuild, simulate, evaluate and monitor self-improving AI agents
Free / Open-sourceBuild, simulate, evaluate and monitor self-improving AI agents

Free / Open-sourceEvaluate, monitor, and govern your AI applications in production
Free / Open-sourceEvaluate, monitor, and govern your AI applications in production
Automatically writes and executes regression tests using agentic workflows, but offers less specialized UI visual diffing than Applitools.
Automatically writes and executes regression tests using agentic workflows, but offers less specialized UI visual diffing than Applitools.

Offers plain-English end-to-end test automation with self-healing capabilities, but lacks Applitools' granular pixel-level visual diffing precision.
Offers plain-English end-to-end test automation with self-healing capabilities, but lacks Applitools' granular pixel-level visual diffing precision.

Free / Open-sourceStandardize LLM evaluation, observability, and red teaming across your whole org
Free / Open-sourceStandardize LLM evaluation, observability, and red teaming across your whole org

Automated QA, simulation and observability for voice and chat AI agents
Uses intelligent agents for browser testing and bug detection, but provides less comprehensive cross-device visual validation than Applitools.
Uses intelligent agents for browser testing and bug detection, but provides less comprehensive cross-device visual validation than Applitools.

Delivers no-code automated cross-browser testing with self-maintaining test steps, but focuses less on pixel-level visual validation than Applitools.
Delivers no-code automated cross-browser testing with self-maintaining test steps, but focuses less on pixel-level visual validation than Applitools.

Enterprise AI coworker and no-code agent platform with zero-hallucination document grounding
Enterprise AI coworker and no-code agent platform with zero-hallucination document grounding