DevSpace vs GitHub Notifier: What are the differences?
Developers describe DevSpace as "Tweetdeck for GitHub". DevSpace is a desktop app that helps you stay up to date with what’s happening on GitHub in real time. On the other hand, GitHub Notifier is detailed as "Chrome notifications for GitHub (open source)". Under the hood, this application simply polls GitHub web endpoints (/pulls|/issues|/releases) of projects you specify, it doesn't require OAuth tokens or credentials entering into the extension.
DevSpace and GitHub Notifier can be categorized as "Tools for GitHub" tools.
GitHub Notifier is an open source tool with 42 GitHub stars and 10 GitHub forks. Here's a link to GitHub Notifier's open source repository on GitHub.