Horo
The best free timer app for Mac
18 Alternatives To Horo
Barcode Alarm Clock
Alarm clock that won’t stop ringing until you scan a barcode
Countdown Screensaver
A Mac screensaver for counting down to a date í ½í¶¥í ½íµ

Date Reminder
Date Reminder reminds you of recurring or nonrecurring events, like birthdays, bills to pay…

Driven
Leverage Pomodoro to form habits & finish to-do tasks ⏱️
Effortless
Stay focused and beat procrastination on your Mac.
Gestimer
For those little reminders during the day
Green Tomates
Free time-management and productivity tool for Mac
Hourglass
Hourglass is the most advanced simple countdown timer for Windows.

Maple
Considered the leading mathematical software, Maple intertwines the world’s most advanced math engine with a user-friendly interface.
Pomodoro Time
Simple Pomodoro timer in your Mac’s menu bar

Thyme
The task timer for OS X.
Tide
Tide is probably one of the most popular relaxing and productivity boosting platforms available over the internet.
Time 2
Stay focused and crush procrastination
Timeqube
Beautiful timer that helps waste less time in meetings
TimerApp
A simple stopwatch app for macOS ⏱️

Touch Bar Timer
A little stopwatch for your Mac’s touch bar