QuietKit - Guided meditation for beginners (for free)
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Momentum - Agile goal and performance management
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
The Best Life Planner 2019 - Build a goals and habits plan that actually works
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.