I have an iOS/Android based tablet; why can't I use it with the EyeQue Personal Vision Tracker?

Unfortunately, you are unable to use the EyeQue Personal Vision Tracker with a tablet at this current moment.  This is primarily because the device is calibrated to work specifically with a smartphone device.  A tablet also has a larger surface area that, when using the device, can cause unnecessary accommodation while using the device.  Your non-testing eye may stray during the test and skew your final results.  While we wish to support tablets in the future, they are currently not supported.