Mobile-First Browser Compatibility Testing
Panto AI helps you automate compatibility checks across popular iOS and Android browsers, real devices, emulated viewports, and WebViews so you catch rendering, gesture, and performance regressions before users do.

Trusted by brands, across the globe

REAL MOBILE DEVICES

WEBVIEW & HYBRID APP SUPPORT

TOUCH & GESTURE TESTING

NETWORK & BATTERY SIMULATION

RETINA / HIGH DPR RENDERING
Why Panto AI For Mobile Browser Compatibility Testing Online
Real mobile devices
Test on thousands of real Android and iOS devices in our cloud (plus emulated presets) to capture native rendering and device-specific bugs.
WebView & hybrid app support
Validate sites inside Android WebView and iOS WKWebView, which is crucial for hybrid apps and in-app browsers.
Touch & gesture testing
Record and replay taps, swipes, pinch-zoom, long-press, and multi-touch gestures across devices.
Network & battery simulation
Reproduce 3G/4G/5G, packet loss, throttling, and low-battery states to reveal issues only visible on mobile networks.
Retina / high DPR rendering
Get pixel-perfect diffs on retina displays and variable device pixel ratios to catch icon, font, and scaling problems.
PWA & offline checks
Test service worker caching, offline mode, and installability flows across mobile browsers.
CI-friendly mobile runs
Gate releases with mobile compatibility checks in GitHub Actions, GitLab, and other pipelines.
Key mobile-first features of Browser Compatibility Testing
Real device pool for Android & iOS
Run tests on physical devices (popular manufacturers, OS versions, and carrier profiles). Catch platform-specific bugs caused by OEM browser wrappers or manufacturer CSS overrides.
WebView & in-app browser testing
Test how your site renders inside apps (Facebook in-app browser, Twitter, in-app WebViews). Important for sign-in flows, deep links, and embedded content.
Gesture recorder & no-code mobile flows
Record flows on a phone (tap, swipe, type, rotate), edit the recorded steps in the UI, and replay them across dozens of devices. No scripting required.
Visual diffs tuned for mobile
Compare screenshots with device-specific scaling and safe-area insets (notches, rounded corners). Highlight issues related to viewport meta tags, CSS env() values, and status bar overlays.
Device orientation & viewport testing
Automate portrait + landscape checks, breakpoint-sensitive layouts, and orientation transitions that commonly break mobile UIs.
Network and carrier simulation
Simulate mobile network conditions, carrier latency, and intermittent connectivity to test timeouts, retries, and UX under constrained networks.
Performance & resource profiling
Capture page load timelines, core web vitals on mobile, CPU throttling effects, and large bundle regressions that disproportionately affect phones.
Accessibility & mobile heuristics
Run mobile-specific accessibility smoke checks (touch target sizes, readable font sizes, voiceover/talkback basics) together with visual diffs.
Local & private environment testing
Run mobile tests against staging servers or local dev machines using secure tunnels. Test behind authentication or in private networks without exposing your infrastructure.
Ideal Use Cases
Why Teams Choose Panto’s Cross-Browser Testing Platform
Instead of chasing browser-specific bugs and layout issues, teams get reliable, automated validation that works everywhere. Panto delivers accurate compatibility insights so you can ship faster with confidence, without manual rework.