ZERO is built on the nifty features found in modern browsers and operating systems. For the best possible experience, please make sure your browser and operating system are up to date. You can check if you’re running the most recent version of your browser by visiting

Supported Desktop Browsers:

  • Google Chrome — latest version
  • Mozilla Firefox — latest version
  • Apple Safari — latest version
  • Internet Explorer — 11
  • Edge — latest version

Supported Mobile Apps:

  • iOS 9.0 or later
  • Android 5.0 or later


  • Any iOS device running iOS 11 or later- iPhone, iPod touch, iPad.
  • Any device that can run Android 5.0 or later
  • Amazon Kindle Fire devices are not currently supported with full functionality. ZERO will work with the Silk browser, but with very limited features. Unless that's your only option, we don't recommend it.

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