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Time Machine Daily

Five price-history questions a day, the same for everyone. Share your result as a row of emoji.

All money and scores in the game are virtual; nothing here is investment advice. Sources and rules · Privacy policy

Once a day, the same five questions for everyone

The Time Machine Daily opens a new quiz every midnight, Korea time. Everyone who plays that day gets the same five questions, and your result is a single row of 🟩🟥 emoji, so you can compare scores with friends without spoiling the answers.

What kind of questions?

They come from the same real records as Which Costs More?: two questions comparing prices in a given year (like a 1988 Seoul bus fare against an ice cream), two about which price multiplied more over a period, and one about everyday prices in the US or UK. Every answer reveals its source.

You can play once a day, and playing on consecutive days builds a streak. Want more? The 10-question mode deals random questions as often as you like.