John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads

Netumo - Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.

Unsplash Wallpaper - Gorgeous wallpapers on your Mac

AppZero - AppZero is a monitoring and migration tool that allows users to keep track of different applications and servers in both simple and complex IT environments.

Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android

RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems