iOS - Google Analytics - Visitor Loyalty

the Visitor Loyalty numbers for the iOS Google Analytics seem to be wrong (at least in my case). According the numbers the app is visited only 1 or 2 times. Never more than 2. This made no sense to me so I created a new account using Google's example app, same results.

Now the question remains: is this a known issue, do you guys also have problems with Visitor Loyalty numbers with the use of the iOS GA sdk or am I missing something here? Are the cookies overwritten or deleted after the second time? All the other results are okay (also the absolute unique visitors) so the cookies don't开发者_运维技巧 seem to be the problem..

(btw with the Android sdk I don't have these problems)

Google say:

Unique Visitors represents the number of unduplicated (counted only once) visitors to your website over the course of a specified time period. A Unique Visitor is determined using cookies.

So every time you re-install your app on device or simulator, a new unique visitor will be detected.