Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Dark Mode List - A list of apps that support 🌃 dark mode
Create Issue Branch - Automates the creation of issue branches on GitHub
REVISR - Git Management for WordPress : keep track w/ version control
Gitscout - A beautiful Github Issues experience for macOS
Contentify - a real-time collaborative content manager on top of Github