Why I cannot see the voice tracker from my mobile device?

When the device is not currently supported by Speech Recognition API and doesn't meet current browser support, we don't show anything on that device. That is the desired behavior as we don't want to show error messages and other similar information. For example, if you use an iPhone to check your tracker - you will be not able to see it, as this device currently didn't support browser speech recognition capabilities in full state. But more than 80% of the users are covered, so it is worth to install and use the voice recognition in your website.