iOS 7 downloaded to over 50 percent of Apple devices, but gives users motion sickness?

The big Apple's iOS 7 has been out in the wild for a bit now and has made it onto quite a lot of iOS devices.

We previously reported on the high adoption rate of iOS 7 on launch day but now a little over a week later, ad network Chitika has some more data to share.

The site states iOS 7 has been downloaded onto 51.8% of all North American Apple devices as of today.

The site tracked the number of iOS 7 "adoption rates" and compared the data with last year's iOS 6 downloads over a period of seven days from launch to find that the latter only made it to 47% of Apple devices.

Global numbers were not included, but on Sept. 23, Apple reported iOS 7 had been downloaded a whopping 200 million times.

iOS 7 is dizzyingly troublesome

Though iOS 7 has been widely downloaded, it has seen its fair share of issues from buggy lock screens to hacks - and now it seems to be causing quite a stir on an Apple forum.

A surprisingly large amount of users have asked for help alleviating motion sickness caused by the parallax effect and animations of iOS 7.

For owners of the iPhone 4S and iPhone 5, "Reduce motion" can be enabled, but according to one commenter, for those using anything below, it appears you're out of luck and can't get rid of the animations.

• Thinking about upgrading your phone? Check out our reviews of the iPhone 5S or iPhone 5C.