Predict first, then read

What happened at Pinterest?

Make your call before you read the case. Then see the dated outcome, its source, its grades and the psychology behind it.

Round 1 of 1Make your first call

PinterestReturn

Real case

In 2014, the book Hooked used Pinterest, then at about 50 million monthly users, as its textbook habit-forming product. How many monthly active users did Pinterest report in Q2 2026?

About 120 millionAbout 300 millionAbout 640 millionAbout 1.5 billion

A–D to choose, ↵Enter to lock in

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