Circa: Estimation Game & Quiz

Circa is an estimation game for grown-ups where being close counts, not being right. How tall is Cologne Cathedral? How long is the Danube? In which year did the Titanic sink? You don't need to know – a good feel for numbers is enough.

10 DAILY QUESTIONS FOR EVERYONE
The daily round is an estimation quiz with ten questions, the same for every player. Afterwards you see how close you were, how the crowd guessed and how many players you beat. Daily and all-time leaderboards included.

HOW SCORING WORKS
A bullseye earns 110 points. Twice the real number? Still 88. Off by a factor of ten? 60. It's like guess the number, but with real-world facts – and you can win without knowing the answer.

DUELS AGAINST REAL PLAYERS
In the ghost duel you answer seven questions against another player's guesses and see their number on the number line after each question. Rematch any time, no waiting, no daily limit.

PARTY MODE FOR GAME NIGHT
Pass one phone around: 2 to 8 players guess in secret, then everyone sees the reveal together. A guesstimate game made for game night, office parties and family gatherings.

PRACTICE BY TOPIC
Geography, buildings, nature & animals, space, history, everyday & tech and the human body: practice without a timer and get hints about the order of magnitude. A numbers trivia trainer that sharpens your sense of scale.

WHAT YOU GET
• 980 questions in four languages, each with a source – plus 300 party questions in the party pack
• A custom number pad with thousand, million and billion shortcuts
• A number-line reveal that compares you with every player
• An archive of the last 30 days to replay
• Light and dark mode, no coins, no locked levels
• Plays offline (leaderboards and duels need internet)

FAIR AND FREE
Circa is free and supported by ads. Optional purchases: ad-free, a party pack (up to 8 players, 300 party questions) and color themes. No purchase gives an advantage in the daily round, duels or leaderboards.

Looking for a trivia quiz that is new every day? A guesstimate challenge, numbers trivia for your commute or an estimation quiz for friends? Download Circa, the estimation game where close is good enough, and play guess the number with the real world. Unlike a classic trivia quiz, there are no wrong answers – only closer ones. Try this guesstimate game today.

Recent changes:
New: an evening reminder when the daily task is still open – you can switch it off in the settings. Plus smaller improvements.