Muster
Timesheets, honestly
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New, October 2026: reports. Your own hours any way round, and the team's for HR. See the reports

Your employer's timesheet, filled in — with their overtime rules already applied.

Muster is a UK timesheet app that records time on your phone as you work, even with no signal, applies your employer's overtime rules, and fills in the form they gave you — so the claim you submit matches the days you actually had.

Running the team, or HR? Everybody's hours and overtime, worked out by your own rules and ready for payroll, with nothing re-keyed.

Try the demo Request a demo Free while in early use — no sign-up. The demo runs on invented data, and nothing is saved.
Two minutes on the demo: a shift with no signal, a day described in words, switching jobs, Reports, Travel and Journeys. No sound.
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Read the manual Every screen, step by step - for the person clocking in, for HR, and for whoever runs it.

Your overtime, worked out — and shown

For engineers, site trades, drivers on nights out — anyone with overtime to claim, on site, away or in one place. The weekly threshold, time and a half, double time, Sundays, bank holidays, travel and nights away, applied as your employer's agreement says, each figure naming its rule.

One pay cycle in the demo, on invented data, as it read on 2 October 2026: 261.5 hours logged, 180 of them at basic. What the rest were worth on top —
Time and a half 81.5 h × £21.70 × 1.5£2,652.37
Overnight 5 UK nights£75.00
Variable pay, gross£2,727.37

An estimate, gross, before tax — never presented as a payroll record. The rules: overtime, the 48-hour week, nights away and mileage.

With no signal, and in the rush hour

  • Everything you record - clock in and out, pause, add, change or delete an entry - kept on the phone.
  • At the time you pressed - clock in at seven in a plant room and the shift starts at seven, even if nothing is sent until lunch.
  • Sent once, in order - when the app is next open with a signal: nothing lost, nothing doubled.
  • Load-tested with 10,000 simulated people - 40 clock-ins a second for a minute, every one kept.

Try it in the demo: its online switch turns the signal off. What works with no signal, and what still needs one.

44 seconds on the demo: a clock-in and a clock-out with no signal, sent when the signal is back, and one entry in the Log. No sound.
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For the team and HR

Every hour in a report is the timesheet's own — the same rounding, the same rules — so a report and the timesheet never disagree.

The same hours, any way round

  • Your own - by client, job, activity, week or day, for any range, shared as PDF or CSV.
  • The team, for HR - a Who picker, a People view, and the overtime each person worked.
  • In the console - up to a year by person and by job, with overtime; a CSV, or print.
  • Worth a look - a clock left running, hours written ahead, corrections.
  • People and access - a one-time access link, then a username and password; revoke and hold signs somebody out everywhere.

The timesheet as Excel, CSV or PDF · the admin console

45 seconds on the demo: a month of hours, narrowed to one job and ready to share. No sound.
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If you're self-employed

No employer needed. Say you are self-employed when it asks how you work: no threshold, and a period ends in an invoice, not a timesheet.

Invoices from the hours you logged

  • From your hours - a client and the dates, by job or by day.
  • With the miles - your drives from Journeys, at HMRC's rate for the tax year, and any expenses.
  • Numbered when issued - never changed after; a credit note puts a mistake right.
  • What is owed - shared as a PDF, and marked paid when the money comes in.

Invoices for the self-employed

47 seconds on the demo: an invoice from a sole trader's logged hours, with the mileage, and what is owed. No sound.
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What it records, and how it is kept safe

Everything it records, who sees it, and where it is kept

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Free while in early use, with no sign-up. A person reads every request and replies by email; accounts are set up by hand.

Thank you - your request has arrived. You will get a reply by email, from [email protected].

That did not go through. Please try again, or email [email protected].

What you type here goes to [email protected] and is used only to reply to you: no mailing list, nothing passed on, and nothing is sent to your address except that reply. Muster's server keeps its own copy for a year, then deletes it.

It is early

Built for one engineer whose overtime was worked out by hand every month, Muster runs a real timesheet for real pay. There is no support desk; there is the manual: every screen, and how hours become pay.