CalmMouse fixes a specific Magic Mouse bug: because the whole top shell is a touch surface, a tiny finger roll during a click scrolls the page or moves a dragged window out from under the cursor. It identifies the physical device behind each event, so only the Magic Mouse is affected while trackpads and other mice pass through untouched, and adds tap-to-click, per-app scroll rules, and straight-line scrolling on top. It's free, open source, requires only macOS Accessibility permission, and makes no network connections at all.
What holds up
- +Fixes one specific, real Magic Mouse bug rather than bundling unrelated features
- +Open source and makes zero network connections — verifiable, not just claimed
- +Completely free with no trial, license key, or email required
Mind the limits
- −Requires a Magic Mouse specifically — no benefit for other mice or trackpads
- −macOS 13 or later only, so older Mac systems can't run it
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