Quite amazingly the iPhone is storing the location history in a file according to the recent revelation. And the history of my where-abouts is then passed on to my Mac in the normal iPhone backups as
Pete Warden and Alasdair Allan explain.
The key question is: Why? The gentlemen have asked it from Apple's product security team with no answer so far.
It is slightly disturbing that the tracks are available on my phone and computer - perhaps uploaded to the servers in Cupertino as well, who knows?
Part of me is angry at Apple - while the data-enthusiast part of me is thrilled to see this level of detail available under my keyboard!
With a visualisation software (
iPhone Tracker) available to unveil the tracks, it is easy to see that I have travelled to UK, India, Sweden and Finnish Lapland recently.
And that my Indian footprint is pretty much limited to Gurgaon area and the outskirts of Delhi:
The London hovering is a bit more central.
This is all straightforward. But the interesting questions start to appear when I look at my home areas. Why are there no major dots around my suburban area on the map?
What is actually the algorithm to store the dots?
It seems that the location is based on cell network based location rather than built-in GPS. Why is that? GPS would be more accurate and easy to be obtained.
Is it storing only the locations I have used cellular data at? This could solve the home-area mystery as I always use WLAN at home. But the theory fails in India, where I switched off the data roaming.
What is the interval of the data storage? Maybe I should do some detail level investigations on the actual data. Interesting.