Streaks - The to-do list that helps you form good habits.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Taskful - Deadlines, meet your match.
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.
ToDoList - Windows desktop application to stay on top of your daily tasks.
Listary - Listary is a revolutionary search utility for Windows