AntiRSI

Mac

A Mac timer built around repetitive strain injury prevention. Alternates short micro-pauses with longer work breaks, and watches your natural pauses so it doesn't interrupt you mid-flow.

The natural-pause detection is the standout: if you already stopped typing, it counts that as your break. Small, quiet, one job.
Paid, Mac only, and the break itself is unstructured. It tells you to stop; what you do with the pause is up to you.
Best if RSI prevention is the specific problem you're solving.
AntiRSI on the Mac App Store →

BreakTimer

Mac · Windows · Linux

Free, open-source break reminder that runs from the menu bar. Configurable break length and frequency, with notification-style or full-screen breaks.

Free and open source, with the settings most people actually want: working hours, skippable or unskippable breaks, full-screen or subtle.
Utilitarian by design. The break screen is a blank slate, so the habit depends entirely on your own discipline.
Best if you want a free, no-frills timer you configure once and forget.
Visit BreakTimer →

Lookaway

Mac

A Mac-native eye-break app built around the 20-20-20 rule. Softly blurs or shades your screen at intervals so you look away from the display, with a menu bar countdown.

Polished, modern macOS design. The gentle screen effects make eye breaks feel less like interruptions. Good scheduling and app-based exceptions.
Paid, and scoped to eye strain. It gets you looking away from the screen; it doesn't get you out of the chair.
Best if screen fatigue and eye strain are your main complaint.
Visit Lookaway →

Stretchly

Mac · Windows · Linux

Open-source desktop break reminder. Configurable micro-breaks and longer pause breaks, with small on-screen suggestions during each pause. Popular with developers and remote workers.

Free, open-source, cross-platform. Highly configurable, and the break ideas give the pause a little structure.
Functional rather than fun. Desktop only, so the habit stays at your desk.
Best if you live at your desktop and want an open-source utility.
Visit Stretchly →

SuperMoo (SupermooBar)

Mac · syncs with iPhone, iPad, Apple Watch

The character-driven one. A cartoon cow named Moo lives in your menu bar as a little face that changes with your day: happy while counting down, sleepy off-hours, and if you sit too long, the villain Dracu-Moo takes over the pill. When it's time, the break is an actual guided sixty-second movement from a library of 30+, not a dimmed screen. Free, ad-free, made by a 501(c)(3) nonprofit.

The break has content: a specific move to do, logged toward a daily goal and streak. Mac 4.0 added focus moo, a deep-work timer whose menu bar pill counts down your block live and whose breaks are movement breaks. Optional iCloud sync carries your moves to the iPhone app. About 12 MB, macOS 14+, no account.
The cow-and-villain framing won't land for everyone. Custom intervals, the full-screen takeover, and custom focus blocks are premium.
Best if plain timers fade into background noise for you, and you want the break to be movement, not just a pause.
Meet SuperMoo for Mac →

Time Out

Mac

A long-running Mac break timer. Fades your screen gradually when a break starts, with separate schedules for micro-breaks and normal breaks. Free with an optional supporter upgrade.

Mature, dependable, and deeply schedulable. The gradual fade-in is a gentle way to be interrupted.
The break itself is a dimmed screen. Like most of the category, what you do during it is left to you.
Best if you want the established Mac standard with fine-grained schedules.
Time Out on the Mac App Store →

How to pick.

If you want
A break that's actual movement
SuperMoo is the one where the break has content: a guided sixty-second move, logged toward a goal. The others pause your screen; what happens next is up to you.
If you want
Free and open source
BreakTimer and Stretchly. Both cross-platform, both configurable, both maintained.
If you want
Eye strain, specifically
Lookaway is built for the 20-20-20 rule and does that one job with the most care.
If you want
RSI prevention
AntiRSI's natural-pause detection means it works with your typing rhythm instead of against it.
If you want
The established Mac standard
Time Out has been dimming Mac screens for years and its scheduling is the deepest of the group.
If you want
Deep work plus breaks in one
SuperMoo's focus moo runs pomodoro-style blocks from the menu bar, and every break between rounds is a movement break.

A note on this list.

We picked these six because they're the Mac break reminders that come up most in honest conversations about menu bar timers, stretch reminders, and desk-health utilities. Not the six with the biggest ad budgets.

We left out apps that have shut down, apps that haven't shipped an update in two years, and Windows-first tools whose Mac builds are an afterthought.

If you think we should add one, or if anything here is inaccurate, write us at support@supermoo.org. We'll fix it.

If a cow in your menu bar sounds like your kind of thing.

SuperMoo for Mac is free to download, about 12 MB, and needs no account. The menu bar face changes with your day, and every break is a real move. Dracu-Moo is along for the ride.

Get SuperMoo for Mac →