Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Moodica - Oddly satisfying videos to relax your brain.
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
Moodprint - Effortlessly track and analyze your moods over time
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Daylio - Daylio enables you to keep a private diary without having to type a single line.