According to Techcrunch, Apple has begun to reject apps that utilise cookie tracking, HTML5 first party cookies or sometimes called “Safari flip-flop” (I personally had not heard of that one before – see footnotes).
This is the action of taking the user out of the app to mobile Safari on first load and then taking them back. This action is being performed by the app to place a cookie into the Safari cache so that the user of the app can be linked up for further tracking.
If you haven’t seen this in action, here the Hotels.com app doing this (skip to 01:00 to miss the blurb):
Joe Molloy is a freelance technical consultant, project manager and writer, based in London, UK.
Joe helps start-ups and companies convert their vision and ideas into real world products and services. Joe specialises in helping companies get it done.