When comparing MacTerm vs kitty, the Slant community recommends kitty for most people. In the question“What are the best terminal emulators for Mac?” kitty is ranked 4th while MacTerm is ranked 12th. The most important reason people chose kitty is:
Very elegant keyboard shortcuts for creating and navigating between tiled terminals within each tab with no appreciable lag.
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Pros
Pro Support for macros
MacTerm has a macro tool with which you can add macros that can potentially do anything you want them to.
Pro Window tiling
Very elegant keyboard shortcuts for creating and navigating between tiled terminals within each tab with no appreciable lag.
Pro Extensible Kitten framework
Supports plugins to add features one at a time for those who need them. Examples include Unicode input and side-by-side diffs.
Pro Tabs for multiple instances
Operate several terminals from one window using the tabs feature, allowing you to make simultaneous connections to different remote hosts.
Pro Scrollback buffer viewer
Allows for viewing the scrollback buffer in an external pager of your choice ('less' by default, with support for 'more' and 'most'), a huge benefit for turning actions taken in a live terminal session into a script for efficiency or dissemination or collaborating on workflows.
Pro Controlled and configured from the shell prompt within the program itself
No graphical menus to clutter the screen saves system resources and time once you learn that all those options are still available from the command line within the app.
Cons
Con Still in beta stage
MacTerm is still in beta stage which means that it may be missing some features or that it has features which are not yet fully polished.