Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Free Alarm Clock - Free Alarm Clock is a free, full-featured and user-friendly computer alarm clock for Windows.
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.
Digital Clock 4 - Beautiful customizable clock with plugins
Listary - Listary is a revolutionary search utility for Windows
AlarmDJ - Online Alarm Clock - Use YouTube videos or MP3 files as alarm sound. Works offline.