When comparing Path Finder vs SizeUp, the Slant community recommends Path Finder for most people. In the question“What are the best power user tools for macOS?” Path Finder is ranked 36th while SizeUp is ranked 58th. The most important reason people chose Path Finder is:
Path Finder is built around a modular interface with six customizable views. Show only the information you need, when you need it.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Heavily customizable
Path Finder is built around a modular interface with six customizable views. Show only the information you need, when you need it.
Pro Dual finder panes allow seeing two folders side-by-side
Pro Tabs
Pro Integrates useful utilities, protocols, viewers and editors
Path Finder can be configured to automatically open and edit word documents, text, and image files. It also has an integrated terminal, hex editor, can archive type files, and can handle file network protocols, such as ftp and afp.
Pro File tagging
Pro Batch renaming support
Pro Powerful file search
Pro Permissions
Pro Drop stack allows temporarily collect files for operations
Pro Git and Subversion
Path Finder has built-in support for Git and Subversion version control systems.
Pro 30-day free trial
A full-featured version of Path Finder can be evaluated for free for 30 days.

Pro Keyboard centric
SizeUp has user-configurable keyboard shortcuts for a set of pre-defined actions.
Pro Supports multiple monitors / spaces
Windows can be sent to different monitors and spaces. It can also be aligned as needed.

Pro Simple
SizeUp is easy and simple to use without having to configure.
Pro AppleScript support allows extending functionality
AppleScript permits adding features such as tiling all open windows. Additionally, FastScripts it allows the user to add keyboard shortcuts to AppleScripts.
Pro Menubar dropdown for shortcuts
Learning a bunch of keyboard shortcuts right off the bat may be difficult to remember at first, which is why a menubar shortcut for the app exists with all the shortcuts listed.
Cons
Con Buggy
- Heavy load on the system after network drive activity
- Crashes sometimes without warning
Con Expensive
Con Inserted disks or mounted volumes do not show up in the left pane in Path finder
You have to dig into the menu bar to mount a disk in the pathfinder, a royal pain. Disks should just show up when inserted.
Con Nag window
If a license is not purchased there is a nag window (which suspends function) that pops up when loading the app (at user login). The nag pop-up is also summoned at certain time intervals and by performing a certain number of commands (manually or by keyboard shortcut).
Con No on-the-fly split screen window settings
Unlike some other tiling window managers, SizeUp has no way to change the size of split screen actions on-the-fly. Any time a user wants to change how much room on the screen a window takes up when using the split screen function, they will need to manually change the settings, which can be time consuming.
