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

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

Snare - Snare is well known historically as a leader in the event log space.

Todo for hackers - CLI Todo app for hackers

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.

Kite - Kite helps you write code faster by bringing the web's programming knowledge into your editor.