Free Alarm Clock - Free Alarm Clock is a free, full-featured and user-friendly computer alarm clock for Windows.
Novi Security - Home security. No Contracts. No Monthly Fees. (Kickstarter)
Digital Clock 4 - Beautiful customizable clock with plugins
Angee - One simple solution to protect your home and privacy
AlarmDJ - Online Alarm Clock - Use YouTube videos or MP3 files as alarm sound. Works offline.
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.