When comparing Codeanywhere vs Glitch, the Slant community recommends Codeanywhere for most people. In the question“What are the best cloud IDEs?” Codeanywhere is ranked 1st while Glitch is ranked 14th. The most important reason people chose Codeanywhere is:
CodeAnywhere gives users full terminal access.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Full terminal access
CodeAnywhere gives users full terminal access.

Pro BitBucket integration
Integrates with BitBucket and allows logging in with your BitBucket account. It's possible to launch Codeanywhere from within BitBucket's repo by adding Codeanywhere integration as an add-on.
Pro Dropbox and Google Drive support
Codeanywhere allows connecting and pulling development files from a Dropbox or a Google Drive account, making it easy to sync development files across devices.

Pro Unlimited revisions
Each action performed on any file from any resource will be saved forever.

Pro Github integration
Integrates with Github and allows logging in with your Github account.
Pro Has mobile apps for all major mobile OSs
Codeanywhere has apps for iOS, Android, Kindle Fire, Windows, and Blackberry.

Pro SFTP access
Allows connecting code via FTP, SFTP.
Pro Good editor
Supports multiple cursors. Has code completion for JavaScript, PHP, HTML, CSS and linting for JavaScript and CSS.
Pro Allows inviting collaborators with a link
Codeanywhere has a feature called Share Links, that allows users to collaborate with others on their projects in real-time by simply sharing a link to their work.
Pro Multiple devboxes
DevBoxes are saveable, fully customizable development environments that run on either Open VZ or Docker and each has a dedicated amount of memory and disk space. Multiple devboxes can be run at the same time.
Pro SSH Terminal
Even for 3rd party SSH connections.
Pro Integration with DigitalOcean
CodeAnywhere recently partnered up with DigitalOcean. Now users can manage, spin up and provision DigitalOcean droplets all from the CodeAnywhere IDE. This is a great addition for both products, combining the power of an affordable host with the portability and power of CodeAnywhere IDE.
Pro OneDrive integration
Similar to their Dropbox integration, it gives you full access.
Pro Unlimited number of public and private projects for free
Pro Runs a server out of the box
Perfect for building web applications, be it client-only, server-only, or full stack.
Pro Private data are kept secret, even in public projects
Non-collaborators can't access private data (e.g. API keys) which are stored in a special file, and they are deleted when a project is forked.
Pro Persistent storage
Pro Multiple languages supported
Although the only official language/framework is Node.js, you can access the terminal and install other languages via apt-get (as long as it doesn't exceed the storage limit).
Pro VS Code integration
If you feel the built-in web editor is not sufficient, you can switch to VS Code and get the full power of its plugins. You still work with the files and server in the cloud, no extra setup required.
Pro It has a friendly welcoming community of builders
Cons
Con No debugging options found (stepping through code)
Con Non free/libre (proprietary)
Con Web terminal window doesn't always run
In many instances, opening a terminal window in CodeEnvy would continue to load eternally.
Con Customer support is virtually non-existent
Con Custom domains do not work
The custom domain feature fails at the SSL cert, even if you are bringing your own via Cloudflare, etc. Running on port 80 appears to break the site. This is especially frustrating when you paid an extra $24 for 15 custom domains that you cannot use. Support is non-existent so they will not help resolve the issue.
Con Does not jump to definitions
Unable to navigate the class definition or declaration.
Con Very unstable
It's a nice IDE when it works, but suffers a lot from instability with things like being unable to save files, or not starting up, as well as crashes, etc.
Con iOS app hasn't been updated in almost 3 years
Update as of August 20 2017.

Con Web editor on iPad is severely lacking
Codeanywhere relies on right click for major actions but doesn't support this interaction on iPad. Selecting listed Dev box URLs to access site is also unworkable in practice. iPad app allows the actions but has very limited set of Dev box controls.
Using an external keyboard with the app can also be problematic as the arrow keys don't work.
Con SSH Port will be different each time you start your DevBox
Only for Always on DevBoxes will SSH ports remain static.
Con Does not have a function name list in side panel view
Con Can't use SFTP with GIT
Con UI is not optimized and zoom is applied to the entire screen, rather than just the editor
The buttons are way too small. The UI feels washed out and opaque. Zoom (Ctrl++) is applied on the entire screen and not just on the editor.
Con 2 Factor authentication is a joke
Con Confusing, not user friendly
It's so confusing versus other IDEs. Not recommended for newbies and programming students.
Con No code prediction
