Hourglass - Hourglass is the most advanced simple countdown timer for Windows.
Sworkit - Sworkit is one of the smartest apps for managing your workout regimen available on the market. It is trusted by more than 25 million individuals, and it can fully customize a workout for you at any time... read more.
Free Countdown Timer - Free Countdown Timer is a free, full-featured and user-friendly countdown timer for Windows
JEFIT - Jefit is the #1 popular gym workout app for Android and iOS. Jefit allows you to manage your training routine and keep track of your workout progress easily.
SnapTimer - SnapTimer is a simple, free, portable countdown timer for Windows.
Feeel - Guided at-home exercises