90/30 Ultradian Focus Timer
3× 90m focus / 30m break — a real, working pomodoro timer right in your browser. Big color-coded phases, beeps, and the screen stays awake. Free, no sign-up.
Focus
90:00
Cycle 1 / 3
Next: Break · 30:00
360:00 left
Palette
Space start / pause R reset M mute F fullscreen
How it works
The 90/30 Ultradian Focus protocol
Ninety-minute focus blocks matched to the body's natural ultradian rhythm, with 30-minute recovery. Three deep-work cycles.
- 90 minutes of single-task focus
- 30-minute break
- Repeat for 3 cycles
- Stop after the last cycle or loop again
Focus
90m
Break
30m
Cycles
3
Total
~360 min
The Pulse app
Love these colors? There are 134 more.
This free timer is a taste of Pulse for iPhone & Apple Watch. The app has 136 searchable palettes, a full color picker, saved custom timers, big glanceable numbers, and your music keeps playing underneath. $3.99 once — no subscription, no ads, ever.
136 palettesEight free, 136 total — searchable, plus a full color picker to match your vibe.
Apple WatchStart any saved timer from your wrist with a haptic tap at every transition.
Live ActivityLock-Screen countdown + Dynamic Island pill keep ticking while you use other apps.
$3.99 onceOne payment unlocks everything. No subscription. No auto-renew. No ads.
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