Simple AB

[kaiinui]

It appends ab param like &ab=47 to allow the backend to return split tested values.

The ab param is between 1-100 and stored in NSUserDefaults so that value doesn't change. You can simply do as follows to do split tests.

if ab <= 30 {
  return SomeValueFor30PercentUserBase
} else {
  return SomeValueFor70PercentUserBase
}

Serve ids something like SplitTestCampaignID allows you to analyze split test results.