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

Raygun - Raygun gives developers meaningful insights into problems affecting their applications. Discover issues - Understand the problem - Fix things faster.

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

Sentry.io - From error tracking to performance monitoring, developers can see what actually matters, solve quicker, and learn continuously about their applications - from the frontend to the backend.

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

Kafka - Apache Kafka is publish-subscribe messaging rethought as a distributed commit log.