- Mac® OS X 10.11 or higher
- Windows® 8 or higher
- Mac: Safari® 10.1 or higher, Firefox® or Google Chrome®
- Windows: Internet Explorer® 11.0 or higher, Microsoft Edge®, Google Chrome or Firefox
For internet connection:
- Reliable high-speed internet connection (wireless, DSL, Cable)
- Recommended minimum internet speed of 512 kbps speed
- A headset and a non-voice-activated microphone are recommended for the Speaking section.
The Official TOEFL iBT Prep Course is not supported on any mobile device.