waffle.io vs ZenHub: What are the differences?

waffle.io: Simple project management for your GitHub issues, free for open source. Track priority and rank for your GitHub issues across multiple repositories. Automatically see issues moved across a board for you, when you open pull requests or create branches; ZenHub: Agile Project Management inside GitHub. ZenHub is a lightweight browser extension that adds a powerful set of features directly into GitHub's UI.

waffle.io and ZenHub can be primarily classified as "Kanban for GitHub Issues" tools.

Some of the features offered by waffle.io are:

• Issues displayed in columns based on GitHub labels
• Realtime updates
• Automatically moves issues across states when you take actions like creating Pull Requests

On the other hand, ZenHub provides the following key features:

• Multi-Repo Task Board Support
• ToDo (private to-do lists)
• Slack integration

"Tight integration with github issues" is the primary reason why developers consider waffle.io over the competitors, whereas "Don't have to leave github" was stated as the key factor in picking ZenHub.

Movielala, Virtkick, and Zinc are some of the popular companies that use ZenHub, whereas waffle.io is used by Movielala, Key Location, and triGo GmbH. ZenHub has a broader approval, being mentioned in 50 company stacks & 23 developers stacks; compared to waffle.io, which is listed in 37 company stacks and 23 developer stacks.