Snapchat’s Gender-Swap and Baby Filters Doubled App Downloads

But can the company build on the momentum?

Last month, Snapchat achieved the kind of virality most companies can only dream of.

On May 8, Snapchat released a photo filter (a “Lens” in Snapchat parlance) that, by rounding a users’ face and smoothing away their wrinkles, transforms them into a toddler. Over…