MAIM

About MAIM

What MAIM is

MAIM is a set of short mouse challenges that run in your browser: Precision (aim and mouse accuracy), Dodge (click-to-move survival), Reaction (reaction time) and CPS (clicks per second).

There is no sign-up. Settings and results stay in this browser, and you can clear your history at any time.

How we measure

  • Each input is timestamped with the browser's event times. Duplicate events are ignored.
  • Where the browser provides coalesced pointer events, we use them. These are samples the browser reports, not a raw USB polling stream.
  • Drawing happens on requestAnimationFrame, so what you see follows the display's frame cadence.
  • Results include estimates of display and input latency based on what the browser can observe. They are estimates, not hardware measurements.
  • performance.now() is a clock. It does not prove when a stimulus reached your screen.
  • Touch input is recorded separately from mouse input.

What we do not claim

  • We do not diagnose an 8 kHz polling rate or any other hardware specification.
  • We do not split reaction time into biological components.
  • We do not produce a calibrated Fitts throughput figure.
  • We do not recommend a sensitivity or DPI setting.
  • Scores are not fair across different hardware. A 60 Hz display and a 360 Hz display, or two different mice, will produce different results.
  • We do not diagnose a mouse switch from clicks per second.

Challenges and records

  • A challenge link reproduces the task layout and rules version. It does not reproduce your physical conditions, such as your mouse, display, browser or desk.
  • Scores shared through a challenge link are unverified comparisons. We cannot confirm they were earned on the same setup.
  • Personal bests only count against the same mode, preset and rules version.

Privacy

  • There is no account and no sign-in.
  • Settings and history are stored in this browser's local storage.
  • Usage counts are sent to maim.io so we can see which modes get played and whether challenge links get opened: page views, runs started and finished with their headline numbers, retries, challenge links copied and opened, score cards saved, and history runs reopened. Each event carries a random id for this tab and a random id for this browser, the page path, the referring site's origin, and a coarse browser family. No IP address is stored, no cookies are set, and no cursor movement is ever included.
  • If your browser sends Do Not Track or Global Privacy Control, nothing is sent at all. The complete list of events is in the open source code.
  • When you create a challenge link, its compact challenge data is stored on maim.io so the link can be short. It is the same data the long link carries and nothing more: mode, preset, seed, your result, and the sparse ghost. No cursor movement, no identifiers.
  • Clearing history is permanent. Deleted results cannot be recovered.
  • Your full cursor movement is not uploaded. A challenge link you choose to share contains only the compact data needed to replay that challenge.

Dodge and MOBA names

MAIM Dodge is an original game. It is not endorsed or sponsored by Riot Games, Valve, or any game publisher. Game names appear only to describe who may find the practice useful.

Contact

Questions, corrections or measurement concerns: [email protected]