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When timesheets, payroll and job costing give three different numbers for the same week, the cause is rarely dishonesty. It is where and when the hours get recorded. This is what a construction time tracking app has to capture to make those numbers agree, based on what we learned building one for electrical contractors.
A construction time tracking app has to record hours per job, on site, at the moment they happen: clock in by location, switches between jobs during the day, travel between sites and breaks. The timer must keep running when the phone is locked or on a call, work without signal, and store time as absolute instants so night shifts and clock changes add up. The office needs a panel to approve and correct entries. Apps Value built this for TimeFix, a workforce app for electrical contractors.
Payroll pays the day. Job costing needs the hours split by job. The invoice needs only the billable part of those hours. All three are usually built from the same source, a timesheet filled in at the end of the week from memory, and memory rounds, merges and forgets.
A foreman who worked on two sites on Tuesday writes eight hours on the bigger one. Travel between them disappears. The job that looks profitable in the report quietly absorbed an hour that belonged to another client. None of this is fraud, and all of it costs money.
The fix is not a stricter timesheet. It is recording time at the moment it happens, attached to the job it belongs to, so the three numbers are three views of one record instead of three estimates.
A useful construction time tracking app captures less than most people expect, but captures it at the right moment. For a crew app, the record that makes payroll, costing and billing agree looks like this:
Everything else, from live maps to overtime dashboards, can wait until crews trust the basics. The wider picture of what goes into a first release is on our construction app development page.
On TimeFix, the work timer had to keep running when the electrician locked the screen or placed a call from inside the app. That requirement was not in the original specification. It came from real use on real jobs, and it is exactly the kind of detail that decides whether hours are recorded or reconstructed.
Operating systems suspend apps that are not in the foreground. A timer that simply counts in the interface stops the moment the phone goes into a pocket. The reliable approach stores the start instant and calculates elapsed time from it, so nothing depends on the app staying awake.
There is a second lesson from the same project. Before the app covered one particular case, technicians started writing things down in their phone's notepad. Within days, the hours in the system and the hours on site no longer matched.
Once a crew builds its own workaround, the data in the app stops being the truth, so every real situation has to have a place in the app from the first release.
Location is the feature operations teams ask for first and crews resist first. It helps to separate three different things, because they have very different costs.
GPS also fails indoors. Basements, risers and concrete cores often return no fix or a poor one, so the app has to accept a clock in with a weak location and flag it for the office rather than block the crew.
Most disagreements between payroll and invoices are not software problems. They are rules that were never written down. A single ordinary day shows how many decisions sit inside one timesheet.
Clock in at site A at 06:45, leave at 11:20. Arrive at site B at 11:50, take a 30 minute break, finish at 16:10.
The app records the times. Your rules decide whether travel is absorbed, split between clients or billed, whether the break is paid, and how entries are rounded. Decide those once, in writing, and the app applies them the same way every day.
Other rules worth settling early: what happens when a crew forgets to clock out, how overtime is counted across several jobs in one day, and who can edit an entry after it was submitted. Each one is a short conversation before the build and a long argument after it.
Crews clock in where there is no coverage, so entries are created offline and synced later. That is manageable as long as the app records the moment the work happened on the device, and the server records when the entry arrived. When the two are hours apart, the office sees why.
Store time as absolute instants, not as local clock readings. A shift that starts at 22:00 and ends at 06:00, or one that runs through a daylight saving change, then adds up correctly without special cases. Storing local time is the most common reason a night shift turns into a monthly payroll dispute. More on building for no signal is in offline first app development.
Hours become payroll only after someone approves them. On TimeFix this is a separate web panel for contractors and team leads, where entries arrive as they are recorded and can be reviewed before the pay period closes.
One rule we keep on every field project: the office must be able to correct an entry by hand, with a record of who changed what. A forgotten clock out should take a minute to fix, not a support request. From the panel, approved hours go to payroll as an export first; a direct integration with accounting software can follow once the export format has proved itself.
The same record structure, time and materials attached to a job, is what drives service visits in custom HVAC software development, and it scales to a full field service app with dispatch and reporting.
If your crews work one site a day and you only need hours for payroll, a ready made time tracking app will do the job and cost less.
Custom starts to pay off when time has to sit on the same record as the job, the materials and the client sign off, or when the app your crews need is narrower than the platform your office bought. The signals are listed in when you outgrow field service software.
A location stamp at clock in and clock out has almost no effect on battery. Continuous live tracking does, which is why we recommend adding it only after crews trust the basics, and only if the operation needs it.
Yes. Entries are created on the phone and synced when coverage returns. The app keeps the moment the work happened and the moment the entry reached the server, so late syncs are visible rather than hidden.
Personal logins and a location stamp at clock in cover most cases. The office panel flags entries created far from the site, and those flags are usually enough to change behavior without heavier controls.
Yes. Most projects start with an export in the format your payroll or accounting software accepts, then move to a direct integration where the software has a documented API.
A narrow first version built around time and jobs takes 10 to 14 weeks. A full system with an office panel, offline reporting and an integration takes 14 to 22 weeks. The details are on our construction app development page, and price bands are on the pricing page.
Thomas sets the company's long term strategy and direction, identifies market opportunities, and owns business development and client acquisition. He builds strategic partnerships that last beyond a single project. He works with clients from the first strategy conversation, so their business goals, not just their feature list, drive every decision.
Walk us through a normal day on your sites. We will tell you what a time tracking app for your crews should record first, how long it takes to build, and what it would cost.
30 minutes, no preparation needed.