Moom

Who It's For

Moom is for Mac users who want precise visual control over window placement without learning a config file or keyboard shortcut for every possible position. Its signature feature — a popup grid that appears when you hover over the green zoom button — makes it easy to discover and use positions you'd otherwise never remember a shortcut for. It's well-suited to users who frequently arrange windows into non-standard positions (a browser taking 60% of the screen alongside a narrow terminal, for example) and want to save and reuse those arrangements.

How It Works

Moom intercepts the green zoom button in macOS window title bars. Hovering over it triggers a popup showing standard snap positions plus a freeform grid. The grid is divided into up to 24 segments — drag across the cells to select a region, and the window fills that area of the screen. This visual approach makes arbitrary proportions accessible without memorizing shortcuts.

Beyond the hover popup, Moom adds a menu bar icon with the same controls, and supports global keyboard shortcuts for common positions. Its most powerful feature is Custom Controls: saved layout actions that you can trigger as a sequence. You can save a "coding setup" action that moves Terminal to the bottom-left third, places your editor in the right two-thirds, and opens a browser in the center — all with a single shortcut. Chaining multiple actions into a workflow this way is what separates Moom from simpler snap tools.

Compared to Similar Tools

Compared to Divvy, Moom has a more polished interface and the green button hover behavior, while Divvy's interaction model is a dedicated floating grid palette you summon explicitly. Both use a grid for visual layout selection; the interaction style differs.

Compared to Rectangle, Moom offers saved custom layouts and chained actions that Rectangle lacks entirely. Rectangle covers fixed snap positions for free; Moom charges $10 for the grid tool, saved layouts, and workflow automation. Users who only need halves, thirds, and quarters get no benefit from Moom over Rectangle; users who save and recall complex multi-window arrangements find it valuable.

Requirements

• macOS 12 Monterey or later (recent versions; check Many Tricks for exact compatibility)
• Accessibility permission required: System Settings → Privacy & Security → Accessibility
• No SIP changes required
• $10 one-time purchase (direct from Many Tricks or Mac App Store)

Getting Started

Moom has no config file — all settings are in its preferences panel. After purchase and install, hover the green zoom button on any window to see the snap popup immediately. To set up saved layouts: open Moom Preferences → Custom, create a new action, and use the grid to define the window position. Assign a keyboard shortcut to trigger the action. Full documentation at manytricks.com/moom.