Oh My Zsh is described as 'open source, community-driven framework for managing your zsh configuration. That sounds boring. Let's try thgain' and is an app in the OS & Utilities category. There are seven alternatives to Oh My Zsh for a variety of platforms, including Mac, Linux, zsh, BSD and Windows. The best alternative is Antigen, which is both free and Open Source. Other great apps like Oh My Zsh are Starship (Free, Open Source), Prezto (Free, Open Source), Oh My Fish (Free, Open Source) and zplug (Free, Open Source).
Antigen is a small set of functions that help you easily manage your shell (zsh) plugins, called bundles. The concept is pretty much the same as bundles in a typical vim+pathogen setup. Antigen is to zsh, what Vundle is to vim.
Starship is the minimal, blazing fast, and extremely customizable prompt for any shell! Shows the information you need, while staying sleek and minimal. Quick installation available for Bash, Fish, ZSH, Ion, and Powershell.
Flawless is a Mac desktop app to facilitate iOS development by helping you compare between mockups and implemented designs in real time. The tool includes overlay and split comparison modes with built-in iOS simulator to help ensure designs are as expected.