When comparing Tower vs MacDown, the Slant community recommends MacDown for most people. In the question“What are the best developer tools for Mac OSX?” MacDown is ranked 4th while Tower is ranked 7th. The most important reason people chose MacDown is:
MacDown is a free and open source editor influenced by [Mou](http://25.io/mou/). It's released under the MIT license.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Pretty, modern-looking user interface
Tower has a good-looking interface and consists of 3 main views - services, repositories and repository.
Services view for managing integrations with hosting services like GitHub, Bitbucket and Beanstalk.
Repositories view for organizing local and remote repositories into folders and getting general overview about them.
Repo view that consists of two main subviews:
Working copy view shows modified files and their diff and allows wrapping up changes in a commit.
History shows commits alongside metadata and projects file structure.
Additionally, it allows performing various tasks such as merging branches via drag & drop, search allows searching by message, commit hash, author, committer and file and there's a quick open that allows fuzzy-searching for folder names.
Pro Offers a visual way to solve conflicts
Tower shows conflicting files, their authors and the commit that made changes. It then allows selecting which files should be used in the final result.
Pro Github integration
Pro Very polished user interface
Pro Cherry-Picking via drag and drop
Pro Git LFS
Tower comes with built-in support for Git LFS. Handy when working with large files.
Pro Git-flow integration
Git-flow provide a consistent development process by defining a strict branching model that is great for managing large projects. T2 allows setting up and integrating into repos that follow this model.
Pro The UI only shows the needed commands at a time
Tower covers most of the daily tasks that a developer may need to complete. It shows only what you need for the most common tasks without overwhelming the user.
Pro Free for students
If you are a student, you can get your free Tower Pro license here.
Pro Interactive Rebase via Drag and Drop
Pro Undo Support
Many Git actions can be undone in Tower simply by using the keyboard shortcut CMD+Z. Examples: Deleting branches and files, staging changes, rebasing & merging branches, or publishing a branch on a remote
Pro GPG support
Tower offers user profiles. You can then connect GPG keys with your profiles, sign commits and see which commits have been signed and by who.
Pro Free and open source
MacDown is a free and open source editor influenced by Mou. It's released under the MIT license.
Pro Real-time split-screen preview
MacDown's main view is split into two panels. The user types on the left and the Markdown is rendered on the fly in the right panel. This helps users to better understand the way they are formatting their document.
Pro Markdown previews can be customized with CSS
You can use a CSS file to customize the rendered output and the file preview you are working on will display the rendered Markdown with the custom CSS styling on top.
Pro Supports syntax highlighting in fenced code blocks
MacDown has syntax highlighting support for various languages when writing code in fenced code blocks.
Pro Good auto-completion
MacDown has a good built-in auto-completion engine for Markdown symbols.
Pro Support for GFM
Pro Ideal for day-to-day programmers' work and MarkDown novices alike
Using MacDown for the notorious README.md use case gets you going without reading any manual or requiring any configuration values. Think of it as a sort of TextEdit for MarkDown files. Thus its shortcomings - neither powerful nor versatile - turn out to be a PRO for novices trying to jump on the MarkDown bandwagon. Open its help and you'll immediately find yourself editing the MacDown's MarkDown help file, a MarkDown primer with some MacDown menus and configuration added.
Pro Linking between pages
Unlike a few other editors, MacDown lets you link between markdown pages.
Pro Tool bar with most used markdown shortcuts
This is especially useful for Markdown novices
Cons
Con Not free/libre
This application is proprietary, and thus cannot be modified or freely distributed.
Con Expensive
Costs $69 per year!
Con Inefficient UI
In order to not overwhelm the users with information, much of the information is either hidden by default or requires navigating to a different section to access.
Con Doesn't have a built in diff
Con Stability issues on Windows
On a simple repository, the UI often lags or freezes.
Con Doesn't support Subtrees
Con Not very versatile
MacDown is not very powerful or versatile. It's not customizable or extendable. This is what makes it so simple, but it's not for people who want more from their tools.
Con Frequently fails to update the display and/or flat out hangs
Must often restart MacDown.
Con The Markdown preview is rather heavy on the CPU
The Markdown preview needs a lot of resources to keep rendering on-the-fly after each keystroke. A single keystroke in the editor panel may trigger up to 5 seconds of max-CPU usage.