Analytics & Wizzley Statistics WAY different?

I noticed this on a smaller scale last week, but thought there must be delays somewhere. But now I've seen a big difference.

Looking at the individual statistics for a page, on the pie graph, the numbers are a LOT higher than on Analytics, even accounting for different day rollover times. 

I just had a wizz article go viral and got about 6,000 unique views in the first day according to Wizzley, but Analytics says it only got about 1,000 views [and with nearly 2,000 FB likes on that first day, I'm really doubting the Analytics!]

Just wondering if the UA code is being inserted correctly all the time or if there's another explanation for this?

Hmm, we should look into this Up to now, the numbers were almost a match - at least in my articles. How about your articles Achim, Anne, anybody else ... ?

Oh wait: The pie graph on Pagewizz is very inaccurate concerning total number of users! The daily stats however should be correct. The pie graph only shows the distribution of where users are coming from. It's a bit technical, but we can't track every user, that's why the total numbers are always lower on the pie graph.

When in doubt: Believe the numbers of Google Analytics: They are the top professionals in that sector ;-)

Ok thanks Simon.

Still a bit confused though - the total visits on my page list match the amount shown on my pie graph. 

Since those only show 7 days and above, what do you mean by 'daily stats'? Is that here on Wizzley or are you referring directly to stats on Analytics? 

I still find it a bit weird that there's a difference of over 4,000 views.

Ooops - for some reason GA seems to be a day behind. When it rolled over, it showed a peak with thousands of hits. According to when I published it (three hours after rollover time two days ago) I'm quite surprised by this. I assumed GA simply updated for the last 24 hours.

Ah, nice to read such a simple solution :) What I meant was: Our pie doesn't show all the visits, but the chart line does. We filter out bots and other non-human "visitors". There's always some degree of guessing involved - that's why every statistics tool shows some deviations in those numbers.