Hey,
For the past few weeks I've been working with the guys at @splitforceAB on their product, which offers free A/B testing for Unity, iOS and Android Apps.
You should definitely check them out if you're working on an app, or you've already got one in the Play or App Store:
https://splitforce.com
This screen shows the results from an experiment, with segmentation and data on how each variable performed.
Andy