For founders01
Solo founders
Building, selling, and support all live in one person's day — and one calendar.
For founders
Being near the work isn’t doing the work.
You’re building, selling, hiring, and firefighting — and the day vanishes. Meetings and messages already took the hours. FocusMirror gives the day a ledger: every increment attributed, or shown as unaccounted — so you can see whether the building hours that were left were actually deep, and protect one block tomorrow. It only ever sees your on-screen work.
01
The problem
Where the building wentThe problem
The day got eaten.
By what?
Founder days don’t collapse in one dramatic block — they leak through standups, "quick" Slacks, dashboards you refresh, and the context-switch tax on every one. It all feels like progress, and you still can’t say where the building went.
The fix isn’t a harder week. It’s visibility: seeing your real rhythm clearly enough to protect the few hours that actually move the product.
02
A build day, reflected
An example based on a common founder dayA build day, reflected
What the evening report looks like.
Daily report
Build dayDeep Work
3h 00m
Meeting
1h 30m
Communication
1h 00m
Admin
40m
Break
30m
Longest focus block75 min · 9:05–10:20
Most fragmented hour2–3 PM · 14 switches
Context switches41
Tracked6h 40m
What shipped
- · Shipped the billing PR
- · Customer interview — pricing objections
Tomorrow Protect 9–11 AM for building — both of your longest blocks started before 10. Batch Slack after lunch.
What it felt like
“I shipped all day.”
What FocusMirror showed
Example based on a common founder day — your own report is built from your own week.Two real building blocks before 11 — then meetings and Slack diced the afternoon into fourteen switches an hour.
03
What it surfaces
The building day, made visibleWhat it surfaces
The building day, made visible.
- How much of the day was actually deep building
- Where the day fragmented — and what fragmented it
- Your best window for hard problems
- How much time went to messages vs. making
- Whether the build hours matched your intent
- One change to protect tomorrow
04
Who it’s for
Deep blocksWho it’s for
Anyone whose output depends on deep blocks.
02
Technical co-founders
Deep work that a single standup or Slack thread can reset for twenty minutes.
03
Founders raising
Fundraising quietly eats the building weeks — see exactly how much.
04
Student-founders
Classes by day, building by night. The build hours have to be deep, not just late.
05
What the research says
Primary sourcesWhat the research says
Switching is the tax you can’t feel.
Every switch between tasks carries a measurable cost — you’re slower and more error-prone right after, and it adds up through frequency, not size.[source] Part of your attention also stays stuck on the task you just left, especially when it felt unfinished.[source] Interrupted work usually still gets done — you just pay for it in stress, not minutes.[source]
Seeing the switching is what lets you cut it. Tracking your own progress is associated with reaching goals 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 investor or 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 founders
See whether the building hours counted.
Free to start, on your own Mac, with one honest reflection at the end of each day.