Device Compatibility

Last updated: June 18, 2026

Supported browsers

BrowserPlatformsVersions
Google ChromeRecommendedWindows, macOS, Linux, Android, ChromeOSLast 2 versions
Microsoft EdgeWindows, macOSLast 2 versions
Mozilla FirefoxWindows, macOS, Linux, AndroidLast 2 versions
SafariRequired for calls on Apple devicesmacOS, iOS, iPadOS15.4 and later
Samsung InternetAndroidLatest
Brave / Opera (Chromium)Windows, macOS, Linux, AndroidLatest

Supported operating systems

Operating systemSupported versions
Windows10 and 11
macOS11 (Big Sur) and later
LinuxUbuntu 20.04+ and equivalent modern distributions
Android9.0 and later
iOS / iPadOS15.4 and later
ChromeOSLatest stable

Supported devices

  • Desktops and laptops (Windows, macOS, Linux, ChromeOS)
  • Tablets (iPad, Android tablets)
  • Smartphones (iOS and Android)
  • Installable as a Progressive Web App (PWA) — “Add to Home Screen” / “Install app”

Notes & troubleshooting

  • JavaScript must be enabled — ch4t is a fully interactive web app.
  • Cookies and local storage must be allowed; they keep you signed in and remember your preferences.
  • Allow pop-ups for ch4t if a window (such as a call or auth screen) fails to open.
  • Voice and video calls require granting camera and microphone permissions, plus a stable broadband or Wi-Fi connection.
  • Push notifications require notification permission. On iOS/iPadOS, install the app to your Home Screen first to receive them.
  • Private / Incognito windows may block PWA installation, notifications, and persistent sign-in.
  • For the best experience and latest security fixes, keep your browser and operating system up to date.

Still having trouble? Reach out through the in-app support area and we'll help you get connected.