Shuffling cards…
Which city is bigger?
Which city has more people?
Megacities are bigger than you think. In the City Population game you get two cities and pick the one with more people in its metro area. Is Tokyo really the biggest? Does Lagos out-populate London? Figures use metropolitan-area estimates from public sources, so a few will surprise you. Ten questions, under a minute, no account needed. Play the daily challenge, share your emoji scorecard, and see who knows the world's cities best.
⚠️ City population values are approximate metro-area estimates and may vary by definition and source.
Frequently asked questions
How do you play PickBigger?
You're shown two cards each round. Tap the one you think is bigger. After 10 questions you get a score and a shareable result. No signup needed.
Is PickBigger free?
Yes. PickBigger is completely free to play in your browser, with no account required.
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Population figures are approximate metropolitan-area estimates from public UN and census sources, shown in millions and rounded.
Last updated: 2026-06-04