CodeRunner vs. Emacs vs. Python vs. Textastic Comparison Chart

At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. Content-aware editing modes, including syntax coloring, for many file types. Complete built-in documentation, including a tutorial for new users. Full Unicode support for nearly all human scripts. Highly customizable, using Emacs Lisp code or a graphical interface. A wide range of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, IRC client, and more. A packaging system for downloading and installing extensions. Built-in support for arbitrary-size integers. Text shaping with HarfBuzz. Native support for JSON parsing. Better support for Cairo drawing. Portable dumping used instead of unexec. Support for XDG conventions for init files. Additional early-init initialization file. Built-in support for tab bar and tab-line. Support for resizing and rotating of images without ImageMagick.

Textastic for Mac is the perfect desktop companion to the popular iOS code editor. With support for more than 80 source code and markup languages, Textastic brings the powerful syntax coloring engine of the iOS source code editor to the Mac. You can use your own TextMate, and Sublime Text, compatible syntax definitions. Textastic for Mac is based on the code editor that powers the iOS app. It uses native macOS APIs like Core Text for maximum speed. Code completion, file navigation with the symbol list and support for modern Mac features like Auto Save and Versions make your life easier. With iCloud Drive, you can sync your files across your macOS and iOS devices with ease. The app packs in support for 80 source code and markup languages, iCloud auto-save and macOS Versions. Built with the ability to import syntax definitions, themes and templates from TextMate.