StatusGator - Monitor all your hosted applications, vendors, and websites, and keep your team informed of outages. StatusGator is the world's premier status aggregator, status page, and website monitoring tool.
Gold Fig - Version control for settings pages
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Gold Fig Checkup - Lighthouse for your AWS infra security and best practices
IsDown App - Monitor all your cloud services status pages in one place
RestHuman - Simple secure app for API management + testing for humans