Going “viral” organically on Twitter or Instagram is hard these days, so running ads on both platforms is a necessity.

But the cost of that traffic is always an issue. Spend too much—and the ad is a complete waste of time, energy, and money. Twitter and Instagram are great platforms to run ads and drive traffic. But which one delivers the lowest cost per click (CPC)?

We will tackle that question (and find an answer) in today’s Social Media Lab experiment.