When comparing AppCleaner vs Better Touch Tool, the Slant community recommends AppCleaner for most people. In the question“What are the best power user tools for macOS?” AppCleaner is ranked 6th while Better Touch Tool is ranked 32nd.
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Pros
Pro Easily and properly uninstall apps without leaving bits and pieces behind
Pro Saves a lot of room and cleans up your hard drive
AppCleaner does a much more thorough job removing unwanted applicated compared to the default method. This saves space and potentially speeds up your Mac.
Pro Simple, drag'n'drop app deletion
Pro Can whitelist certain apps
Pro Uninstalls widgets and plug-ins as well
Pro Endlessly customizable
Pro Extendability
Allows user to extend my MBP with touchbar by creating custom actions per app. Also supports system-wide integration (touchbar actions).
Pro BTT makes it simple to sync your hotkey, Touch Bar and gesture setup between several machines
Pro Sync settings in the cloud
Pro There's a free companion app for iOS that you can use to remote control your Mac
Pro Supports Apple script, bash, javascript
Pro Customize window button behaviour
Pro Make your own menu bar items
Pro Active community
Pro Built-in clipboard manager
Pro Highly configurable window moving / window snapping options
Pro Key sequences
Supports key sequences for things like text expansion.
Pro Supports MIDI devices (keyboards, DAW controllers, etc.)
Listen for MIDI events and have them control anything. For example you could use a DJ controller in your favorite video editor, etc.
Pro Lets you configure your external mouse's 4th and 5th button per app
Pro Record gestures / drawings and assign them to actions
Pro Developer is regularly adding features / improvements
Cons
Con Closed-source
No source available. No open source license.