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Approximatr

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Five geometry puzzles a day, solved by eye with one draggable handle.

Every day: Five new geometry puzzles every day at midnight UTC, the same for every player: set an angle, cover a share of a circle, find a midpoint and the like, each scored with a medal, plus a streak. New puzzle: Midnight UTC (00:00 UTC).

Play Approximatr on approximatr.com
Approximatr share card with three phone screens showing a square area puzzle, a circle coverage puzzle and an angle puzzle

Approximatr is a free daily game of judging shapes by eye. Each day brings five new puzzles, the same for everyone: set an angle to a given number of degrees, cover a share of a circle, find the middle of a line. You drag one handle until it looks right, then see how close you came and earn a medal for each puzzle.

About Approximatr

Approximatr calls itself the daily game of spatial intuition. Every day at midnight UTC it serves five new puzzles, the same for every player, and each one asks you to judge something with your eyes alone. One puzzle might ask you to set an angle to 133 degrees, the next to cover 55 percent of a black circle with a green one, another to quadruple the area of a square or bounce a ray off a wall so it hits a dot.

Every puzzle works the same way: there is one handle to drag, and no ruler, grid or readout to help. When it looks right you lock in your answer, and the game shows the exact answer beside yours and how far off you were. Each puzzle earns a medal, a bullseye for a perfect answer, then gold and silver, and the day ends with a row of five medals you can share. A day takes a few minutes.

The game was made by Edward Catchpole, an independent developer in the UK, and released in August 2026. Its maker names Wordle, GeoGuessr and The Kerning Game as the inspiration. It plays in any web browser on a phone, tablet or computer, and can be installed to the home screen.

Approximatr is free and has no ads. You can play as a guest with no sign-up. An account, by Google or email, keeps your streak and medals across devices and lets you join a Circle, a private group that compares results with friends or family each day. You can also send a challenge link so a friend plays the same day's puzzles against your answers.

It suits players who like the angle, cut-in-half and centre-of-mass games, and anyone who wants a short daily test of the eye rather than of words or knowledge.

How to play Approximatr

  1. Open approximatr.com and press Play now as guest, or sign in to keep your progress.
  2. Read the one-line instruction at the top of the puzzle, such as Set the angle to 90 degrees or Cover 27% of the black circle.
  3. Drag the single green handle until the shape looks right to you; there are no rulers or grids to help.
  4. Lock in your answer to see the exact value, how far off you were and the medal you earned.
  5. Press Next puzzle and work through all five of the day's puzzles.
  6. On the results screen, share your row of medals, challenge a friend with a link, or compare with your Circle, then come back after midnight UTC for five new puzzles.

Screenshots

Approximatr puzzle asking to cover 55% of the black circle, answered at 53% for a gold medal
Approximatr example puzzle: set the angle to 90 degrees by dragging the green handle
Approximatr results screen with a row of five medals, a streak counter, a countdown to new puzzles and a challenge a friend button

Tips

  • Tap the question mark beside an instruction for a short explanation of that puzzle type.
  • For angles, picture a right angle first and judge your target as more or less than it.
  • For area puzzles, remember that doubling a square's side quadruples its area, so the handle moves less than you might expect.
  • Start with the example puzzle on your first visit; it does not count toward the day's medals.

Questions

What time does Approximatr reset?

Five new puzzles arrive every day at midnight UTC, the same for every player. The results screen shows a countdown to the next set.

Is Approximatr free?

Yes. It is free to play and has no ads. You can support the developer through Buy Me a Coffee if you want to.

Do I need an account?

No. You can play every day as a guest. An account keeps your streak and medals across devices and is needed to join a Circle with friends.

What do the medals mean?

Each puzzle earns a medal by how close you got: a bullseye for a perfect answer, then gold, then silver.

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