Pantheon Terminal is described as 'A super lightweight, beautiful, and simple terminal. It's designed to be setup with sane defaults and little to no configuration. It's just a terminal, nothing more, nothing less' and is a Terminal Emulator in the OS & Utilities category. There are more than 25 alternatives to Pantheon Terminal for a variety of platforms, including Linux, Mac, Windows, BSD and Electron / Atom Shell. The best alternative is ConEmu, which is both free and Open Source. Other great apps like Pantheon Terminal are PowerShell (Free, Open Source), MobaXterm (Freemium), Tabby (Free, Open Source) and Terminator (Free, Open Source).
PowerShell (including Windows PowerShell and PowerShell Core) is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language built on the .NET Framework.
MobaXterm is an enhanced terminal app that brings the advanced features of a Unix-like command-line to Windows. It takes the power of Cygwin and wraps it in a sleek, visual interface that's super easy to use, lightweight and portable.
Terminator enables the user to run and manage multiple terminal emulators side-by-side in the same window. The main focus is arranging terminals in a grid. (Tabs is the most common default method, which Terminator also supports.
Hyper™ is a beautiful and extensible, cross-platform terminal built on open web standards. It provides an elegant command-line experience that is consistent across all supported platforms which includes macOS, Windows and various Linux distributions like Fedora and Debian.
iTerm2 is a replacement for Terminal and the successor to iTerm. It works on Macs with macOS 10.10 or newer. iTerm2 brings the terminal into the modern age with features you never knew you always wanted.
GNOME Terminal is a terminal emulator for the GNOME desktop environment written by Havoc Pennington and others. Terminal emulators allow users to execute commands using a real UNIX shell while remaining on their graphical desktop.