A private record of your guesses about how long jobs will take, and what actually happened. You guess a range and say how sure you are, do the job, and record the minutes before you explain anything. Your guess is locked once it is saved, and the record shows how your results run against your guesses, kind of job by kind of job. It is a working version of Prediction Before Action from The Evidence-Based Life.
Start with the smallest useful record
Anyone whose jobs keep taking longer, or sometimes shorter, than they expected, and who would like to see the pattern in their own record. Begin with what happened or what you expect, in ordinary words. Do not turn a difficult day, a worry or an estimate into a score about the person. The purpose of the record is to preserve something that can be read back later, when memory and the current feeling may tell a tidier story.
Write only what this decision needs. A small record can be complete. A blank day can remain blank. If the act of recording is becoming another demand, make the record smaller, pause it or use paper instead.
What the tool does
One self-contained HTML file, a quick start, an evidence record and a checksum manifest. No install, account or subscription. The tool works offline and makes no network requests. The publisher receives no copy of what you enter. Records stay in this browser, but browser storage is not encrypted or protected from other people using the same browser profile. Pay once for this version and reuse the downloaded file indefinitely. Future major versions and continuing support are not included unless they are stated separately. A guess for any ordinary job: a low and a high in minutes, and how sure you are that the result will land inside it. A timer that stores when you started, so it keeps going if you close the page, and a clock that stays hidden unless you ask for it. You can also type the minutes. The screen acknowledges or computes only from the information entered. It does not infer a diagnosis, read hidden meaning into free text or compare the user with other people.
The useful questions are: What did I put into the record? What did the tool calculate or read back? Which part is still an assumption? What is the next small decision? Keep those answers separate so that a gentle presentation is not mistaken for a clinical or predictive claim.
What exactly am I recording?
Keeps the entry bounded and observable.
What does the retained record actually show?
Separates evidence from the story remembered afterwards.
What can this record not tell me?
Keeps the product boundary visible.
Will I continue, reshape, pause or stop?
Turns review into a proportionate choice.
Privacy and portability
The packaged tool runs locally in a modern browser and makes no network requests, so the publisher receives no copy of what you enter. There is no account, subscription or automatic synchronisation. Working data stays in that browser on that device unless you export it. Clearing browser site data can clear the record, so export a backup before changing browser, computer or storage settings.
Local storage is a privacy boundary, not a guarantee that a shared or managed device is private. Browser storage and exported backups are not encrypted or password-protected by the tool. Do not enter confidential, regulated or third-party information unless you have authority and the device is appropriate. The tool does not send a message, contact another person or obtain consent on your behalf.
Pay once means you may keep reusing the version you downloaded without a subscription. Future major versions and continuing support are separate unless they are explicitly included.
Limits and when to use another route
This is a personal record of guesses and results. It does not assess attention, memory or any condition, it is not medical advice, and it does not replace professional support. It does not say that keeping a record will improve anyone's estimates. If losing track of time is causing real difficulty at work or at home, it is worth talking to your GP. Research and guidance are transferred only at the narrow level described in the source acknowledgement. A study of one action does not prove a month-long programme works; a model can explain a design choice without validating the product; and a private record cannot replace the records held by a clinician, employer, bank or other responsible service.
If the situation involves immediate risk, safeguarding, serious distress, regulated advice or a consequence outside the tool's scope, use the relevant human or professional route. Recheck time-sensitive guidance before relying on it.
Frequently asked questions
No. Heron is a fictional collection host. The tool records, acknowledges or computes only the bounded function described on this page.
No. It does not assess, diagnose or treat a condition and does not replace professional care.
The tool needs no account and makes no network requests, so the publisher receives no copy. Browser storage and exported backups are not encrypted or protected from another user of the same browser profile.
No. Export a backup if you want to move or preserve the record.
You may reuse the downloaded version without a subscription. Future major versions and continuing support are separate unless explicitly included.
No. Use the questions on paper if that is enough. The download is for people who benefit from a retained local record.
Use the smallest useful tool
The method above does not require a purchase. If a retained local record would reduce repeated setup, review this tool after its tested release.