The Ledger tier · Free01
Account
Every increment of your waking day gets attributed — to a category, to a committed block, or it shows as unaccounted. No increment gets to hide.
The Ledger tier · Free
Open the books on your hours.
One normal week. Every increment of your waking day gets attributed, or it shows as unaccounted — then you close the books each night. Seven statements is all it takes to see your real accounted %, your longest unbroken block, and the one hour that quietly leaks. It only sees your on-screen work, and it’s yours alone.
v0.1.7 · macOS 14+ · Apple Silicon · No card · No screenshots
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01
What it is
No trial countdown, no cardWhat it is
The free Ledger tier —
a week of your own books.
Run FocusMirror for one normal week and close the books each night. Seven days is all it takes to see your real accounted % — where your hours actually go, which hour quietly leaks, and the one change worth making. No trial countdown, no card.
- Seven nightly statements — your real day, one card at a time.
- Your accounted %, your longest unbroken block, and your leakage — named.
- One concrete adjustment a day — seven small course-corrections in a week.
02
Why it works
People improve what they can seeWhy it works
Account → Close → Read the P&L → Adjust.
People improve what they can see. Keeping books closes a loop: you account for the day’s real shape, close it out each night, read the P&L, and change one thing. The change doesn’t live in the dashboard — it lives in the one adjustment you make after it.[source] Tracking progress toward a goal is associated with reaching it more often.[source]
02
Close the books
Each night, a three-minute ritual: resolve what's unaccounted, and the day renders as one statement — your accounted %, coverage of the books, never a grade on you.
03
Read the P&L
Categories roll up into Investments, Operations, and Leakage. You decide what's leakage; the ledger just prices it.
04
Adjust
One observation a night, never a lecture. Run the books for a week and where your hours actually go stops being arguable.
Behavior data alone rarely moves outcomes without a concrete prompt to act — so every closed day ends in exactly one observation.[source]
03
An example day
Your own statement is built from your own weekAn example day
This is what the books look like, closed.
Daily report
Thu, Jun 11Deep Work
3h 20m
Meeting
2h 00m
Communication
1h 10m
Admin
45m
Break
50m
Learning
30m
Longest focus block75 min · 9:05–10:20
Most fragmented hour2–3 PM · 14 switches
Context switches41
Tracked8h 45m
What shipped
- · Shipped the billing PR
- · Customer interview — pricing objections
Tomorrow Protect 9–11 AM for deep work; your two longest focus blocks both started before 10 AM. Batch Slack and email after lunch.
Your accounted %, the P&L by Investments / Operations / Leakage, your longest unbroken block — and a single adjustment to try tomorrow. Your own statement is built from your own week.
See more example statements04
Who it’s for
It only sees your on-screen workWho it’s for
For people whose hours are worth too much to lose track of.
Practice, clubs, your side project, the lab — they already took the hours. So the hours that are left are the ones that have to count. The books tell you whether they did.
FocusMirror only sees your on-screen work — never your practice, your clubs, or your phone-off life. That’s the point: it keeps honest books on the hours you spend at the keyboard, and leaves the rest yours.
05
References
Primary sourcesReferences
The sources behind this page.
- 01Li, 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.
- 02Matcha 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.
- 03Harkin 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.
06
Product updates
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The Ledger tier · Free
Seven days. Your own data.
See whether your hours count.
Free to start, on your own Mac, no card.