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by lucasvo 4939 days ago
We built this in less than 24hours at angelhack.

It's using mechanical turk to present real humans both versions and ask them to answer the question asked by selecting one of the images. It should be a good second opinion but obviously it's not comparable to an actual A/B test on a live website. At that price, you probably can't get cheaper feedback. Considering what average CPCs are for Facebook and Google, this is a pretty good deal.