For knowledge workers01
Engineers
Flow that a single notification or drive-by can reset for ten minutes.
For knowledge workers
Stop guessing where the day went.
Meetings, messages, and a dozen tabs — and at 6 PM you still can’t say what you actually did. FocusMirror gives your day a ledger: every increment attributed, or shown as unaccounted — so you can see your real focus time and change one thing tomorrow. It only ever sees your on-screen work, and the statement is yours alone.
01
The problem
Busy all dayThe problem
Busy all day, and nothing to point to.
The day fills with calls, threads, and tabs — each one feels like work, and none of it adds up to a block you can name. The calendar shows the plan; your memory tells you how it felt; neither shows what actually happened.
The fix isn’t more discipline. It’s visibility: seeing your real rhythm clearly enough to defend the time that does the work.
02
A workday, reflected
An example based on a common workdayA workday, reflected
What the evening report looks like.
Daily report
Meeting-heavy dayMeeting
3h 30m
Communication
1h 10m
Deep Work
45m
Admin
35m
Break
25m
Longest focus block30 min · 4:10–4:40
Most fragmented hour11 AM–12 PM · 9 switches
Context switches33
Tracked6h 25m
What shipped
- · Led the planning sync
- · Unblocked the design review
Tomorrow Only 45 min of focused work today. Hold one no-meeting block tomorrow morning.
What it felt like
“I was in meetings all day.”
What FocusMirror showed
Example based on a common workday — your own report is built from your own week.Meetings filled the calendar; the only real focus block came at 4 PM, once the day finally cleared.
03
What it surfaces
The workday, made visibleWhat it surfaces
The workday, made visible.
- How much of the day was actually focused work
- Your most fragmented hour, named
- How much time went to meetings vs. making
- When your one real block actually happened
- What pulled your attention between calls
- One change to try tomorrow
04
Who it’s for
Deep blocksWho it’s for
Anyone whose output depends on deep blocks.
02
Designers & PMs
Maker time wedged between standups, reviews, and Slack threads.
03
Analysts & writers
Work that only pays off in sustained blocks, not five-minute gaps.
04
Remote & hybrid
A calendar that quietly fills until there's no maker time left.
05
What the research says
Primary sourcesWhat the research says
The cost of a fragmented day is real.
Switching between tasks carries a measurable efficiency cost that adds up through frequency.[source] Part of your attention stays stuck on the task you just left — “attention residue” that degrades the next one.[source] Interrupted work tends to still get finished, but you compensate with more stress and effort.[source]
Seeing the pattern is what lets you change it — and tracking progress toward a goal is associated with reaching it more often.[source]
06
Reasons to believe
Every claim links to the page that proves itReasons to believe
Private by design — and we won’t fake the proof.
No screenshots, no keystrokes, no employer dashboard. Every claim links to the page that proves it.
01Verifiable
Signed & notarized by Apple
A verified-developer build, every release.
See the proof →02Verifiable
No screenshots or keystrokes
Enforced in code and schema, not just policy.
See the proof →03Verifiable
Delete everything, anytime
A hard delete that cascades to every derived row.
See the proof →04Verifiable
Built on 8 peer-reviewed studies
Primary sources only — read them yourself.
See the proof →05Verifiable
Built in public
An open changelog of what shipped, and why.
See the proof →06Verifiable
Single-user by design
No employer dashboard. No one else to show.
See the proof →07
References
Primary sourcesReferences
The sources behind this page.
- 01Rubinstein, Meyer & Evans (2001) — Task-switching costs — Rubinstein, J.S., Meyer, D.E. & Evans, J.E. "Executive control of cognitive processes in task switching." Journal of Experimental Psychology: Human Perception and Performance, 27(4), 763–797.
- 02Leroy (2009) — Attention residue — Leroy, S. "Why is it so hard to do my work? The challenge of attention residue when switching between work tasks." Organizational Behavior and Human Decision Processes, 109(2), 168–181.
- 03Mark, Gudith & Klocke (2008) — The cost of interrupted work — Mark, G., Gudith, D. & Klocke, U. "The cost of interrupted work: more speed and stress." Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '08), 107–110.
- 04Li, Dey & Forlizzi (2010) — Stage-based model of personal informatics — Li, I., Dey, A. & Forlizzi, J. "A stage-based model of personal informatics systems." Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '10), 557–566.
- 05Matcha et al. (2020) — Learning-analytics dashboards review — Matcha, W., Uzir, N.A., Gašević, D. & Pardo, A. "A systematic review of empirical studies on learning analytics dashboards: a self-regulated learning perspective." IEEE Transactions on Learning Technologies, 13(2), 226–245.
- 06Harkin et al. (2016) — Goal-progress tracking — Harkin, B., Webb, T.L., Chang, B.P.I., Prestwich, A., Conner, M., Kellar, I., Benn, Y. & Sheeran, P. Psychological Bulletin, 142(2), 198–229.
08
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For knowledge workers
See where the day actually went.
Free to start, on your own Mac, with one honest reflection at the end of each day.