Headspace - Meditation made simple. Brilliant things happen in calm minds.

Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

Calm - Calm.com can help you reduce stress and increase calm.

Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.

Meditation Studio - Curated collections of guided meditations

Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.