Pusher Beams - Send push notifications programmatically at scale
Metric.live - Real-time and advanced periodic alerts for Google Analytics.
Pingy - Check your site status from your menubar
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
Snowball Smart Notifications - Get the notifications you want and none of the rest
Keysmith - Create custom keyboard shortcuts for your Mac and the web