iOS detect mock locations

Question

Currently I\'m working on an App which geolocation capabilities are its most important feature. Actually we\'re very concerned about getting GPS values mocked up. I\'ve read

Answer 1

To elaborate on @KennyHo answer, I found out that there is another difference between real and simulated locations feedback.

A simulated location, as I noticed, always returns this combination of values for these location properties/options:

horizontalAccuracy: 5
verticalAccuracy: -1
altitude: 0.000000
speed: -1

while a real location would give different combincation 99% of the time such as

horizontalAccuracy: 5
verticalAccuracy: 10
altitude: +/- 0.4243232
speed: -1

Note that it is possible for a simulated location to have a different combination than the above one but only if the user uses xcode Automation target test. However the user can only simulate a location to a signed app with a development identity (must own the app). This means nobody, except you, can fake a location with different altitude or verticalAccuracy to trick your app in xcode.