Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
Keysmith - Create custom keyboard shortcuts for your Mac and the web
Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
CherryTree - A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.
Metric.live - Real-time and advanced periodic alerts for Google Analytics.