Three interviews over the phone, total. First was with the director of growth, mostly fit questions. Second was with a product manager, which determined that I was not a good fit for the department, but instead perhaps a fit for the user acquisition role. Final interview was with the director of business, who went into my background, asked a case question about Apple, then asked a couple of brainteasers which ended up being about ability to understand prime numbers and probability. I didn't see the point of those. Each interview lasted 45 mins - 1 hour.