Pastebin.com - Pastebin.com is a website where you can store text for a certain period of time.
Sifter - Sifter is designed to be a simple bug and issue tracker for small teams and works especially great for teams with non-technical folks involved.
GitHub Gist - Gist is a simple way to share snippets and pastes with others.
Linear - Streamlined issue tracking for software teams
hastebin - Pad editor for source code.
Instabug - The top apps in the world rely on Instabug for beta testing, user engagement and crash reporting.