Loop vs Moom

Loop

• Mac users who want to place windows with one held key and a cursor movement
• People looking for a free, open-source alternative to paid window snappers
• Those who want to theme the menu and preview to their taste

Moom

• Mac users who rearrange the same windows each time they dock a laptop
• People who want both mouse-driven and keyboard-driven window control
• Buyers who prefer a one-time license that covers all of their Macs

Loop

• macOS only; the README says it is compatible with macOS 13 and later.
• Its own comparison table lists no trackpad gestures, saved workspaces, pinning windows on top or resizing of adjacent windows.
• Using Caps Lock as the trigger key needs a modifier remap in System Settings or another app such as Hyperkey or Karabiner-Elements.

Moom

• macOS only; Moom 4.6 requires macOS 10.13 High Sierra or newer.
• Moom 4 is sold only on the Many Tricks site. The Mac App Store carries Moom Classic, the older Moom 3, at $6.99.
• A license includes at least one year of updates. Later updates may be paid, though the purchased version keeps working.
• There is no direct Shortcuts support; the FAQ says some features can be reached through AppleScript.

Loop

Radial menu

Hold the trigger key and move the cursor in a direction to move and resize the window. The menu's width, shape and color can be changed, and it can be turned off.

Preview window

An outline shows where the window will land before the action is committed. Its padding, corner radius and border are adjustable, and it is optional.

Keyboard shortcuts

Any key can be paired with the trigger key to run an action: halves, quarters, thirds, maximize, center, grow and shrink, undo, or a move to another screen.

Cycles

Pressing the same key combination repeatedly, or left-clicking repeatedly, steps a window through a sequence of positions.

Stash

Windows can be hidden at the edge of the screen and brought back by hovering near the edge or with a key binding.

URL scheme for scripts

A loop:// URL scheme lets shell scripts and AppleScript trigger window actions, chain several of them, and list the available commands.

Moom

Pop-up palette

Hovering over a window's green button shows a palette of move and zoom actions. It can be customized with up to 61 actions, including folders, layouts and grids.

Saved layouts

Save the positions of a set of app windows and restore them later, for example when a laptop connects to an external display. Any-window layouts apply to the most recently used windows instead.

Snap and drop zones

Drag a window to a snap zone to move and zoom it. A saved layout placed in a snap zone turns its window positions into drop targets.

Custom actions and chains

Custom actions can be chained to run as one combined step or as a loop that advances each time it is used, and organized into nested folders.

Hover

Hold a set of modifier keys and move the mouse to move or resize the window under the pointer, even one in the background, without clicking.

Keyboard control

With the keyboard features enabled, windows can be moved, resized, centered and placed on an on-screen grid without the mouse, and custom actions run from a hot key.

Loop

• Loop$0

  Radial menu, preview window, keyboard shortcuts, cycles, stash, theming and URL-scheme scripting. GPLv3 licensed.

Moom

• Moom$15

  one-time purchase, license valid forever

  Moom 4 with at least 1 year of updates. One license covers every Mac you use and the family members in your household.

Loop

No public discounts listed.

Moom

• Other savings

  $8 upgrade for existing Moom owners

  People who bought an earlier Moom, from the Mac App Store or directly, can upgrade to Moom 4 for $8 instead of paying the $15 new-license price.

• Lifetime license

  Perpetual license with a year of updates

  A license is perpetual and not a subscription: you own the version you bought, plus any updates released during at least the first year.

• Other savings

  Discounts for buying several licenses

  The license FAQ says Many Tricks has multi-item discount pricing and can work out a custom discount for larger quantities.