Plan your day on a clock
Sketch your whole day as colored blocks on a single 24-hour face. One glance shows where your time actually goes, and the empty gaps show where it doesn’t.
Plan your day on a clock.
It runs itself.
Made for people who use time blocking and Pomodoro.
SliceFocus lays your day out on a 24-hour clock. Start a block and its timer moves from focus to break and back on its own — no alarms to dismiss, no taps between rounds. And the session is yours, not your device’s: it runs on your Mac and your iPhone at the same time, in step.
Free on iPhone and Mac. No ads, nothing to buy, no sign-up to start.
How it works
Draw your day. Then let it carry you.
Sketch your day as colored blocks on a 24-hour clock — one glance shows where your time actually goes. Tap a block to start a focus session with a built-in Pomodoro timer.
When a focus round ends, the break begins on its own, and the next round after it. No alarm to dismiss, no “start” button to find between rounds — you just keep working while the clock moves underneath you. Start on your Mac and the same session is on your iPhone; start on your phone and the Mac picks it up.
Features
Plan it. Carry it anywhere. Keep the noise out.
One timer, every device
A focus session belongs to you, not to the device you started it on. Start on the Mac and your iPhone shows the same session; pause, skip or stop on either and the other follows. Work hands over to break and back everywhere at once.
Leave your desk for the break and take the timer with you: the countdown sits on your phone’s lock screen with no app to keep open, a notification tells you when the break is over, and the Mac menu bar is showing the same session when you get back.
Focus Shield: your distractions, out of reach
Pick the apps and websites that pull you away. During every work phase they stay out of reach; every break lets them back in. A session started on your iPhone shields your Mac too, and the other way round.
Gentle by design: only during work phases, lifted on every break, and you can lift it yourself. On iPhone and iPad it runs on Screen Time; on the Mac it covers apps, Safari and Chrome.
Also in the app
- Categories. Name, color and emoji; tag a block with more than one; they follow you across devices.
- Calendar & reminders. Your calendar events on the clock, planned blocks exported to any calendar, and an optional reminder, created each time you save a block and due a few minutes before it starts.
- Pomodoro, your way. Set work and break lengths once. Prefer to confirm each phase yourself? Turn auto-advance off in Settings.
- Soundscapes. White, brown and pink noise in every session; switch mid-session, pauses with the timer.
- Gentle nudges. A calm notification when a phase ends, and an optional weekly recap.
- Planned vs. actual. The time you spent laid over what you intended.
- Trends. Focus minutes over the week, split by category.
Why it works
Built on how attention actually behaves.
SliceFocus leans on a few things the research is fairly clear about:
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Switching tasks leaves part of your attention stuck on the one you just left — what researchers call attention residue.
Leroy, “Why is it so hard to do my work?” — Organizational Behavior and Human Decision Processes, 2009.
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Deciding in advance when and where you’ll do something reliably improves follow-through.
Gollwitzer & Brandstätter, “Implementation Intentions and Effective Goal Pursuit” — Journal of Personality and Social Psychology, 1997.
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Deciding beforehand what happens when a temptation shows up (“if it’s a work phase, then this stays closed”) shields a goal far better than resolving to resist it. Focus Shield is that plan made automatic.
Gollwitzer & Sheeran, “Implementation Intentions and Goal Achievement: A Meta-analysis of Effects and Processes” — Advances in Experimental Social Psychology, 2006.
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Blockers that support without coercing are the ones people keep using; a shield you would fight is a shield you abandon.
Lyngs et al., “The Goldilocks level of support” — International Journal of Human-Computer Studies, 2022.
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Interruptions don’t just cost the moment — getting your focus back afterward takes real mental effort.
Mark, Gudith & Klocke, “The Cost of Interrupted Work” — Proc. CHI, 2008.
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Seeing your plan laid out in front of you offloads work your memory would otherwise have to carry.
Kirsh & Maglio, “On Distinguishing Epistemic from Pragmatic Action” — Cognitive Science, 1994.
These are findings about attention and planning in general, not studies of SliceFocus. We just tried to build with the grain of them.
Early days
Built in the open — and just getting started.
SliceFocus is young and moving fast: new features land every release, shaped directly by the people using it. There’s no subscription required — just download it and start planning. If something feels rough or you have an idea, we’d genuinely like to hear it.