Time Tracking App for Construction Crews: What It Must Have

Most time tracking apps were designed for offices and then sold to construction companies. You can tell within a week: the app assumes stable internet, assumes every worker has a good phone and wants to use it, and produces reports an accountant cannot import. The company tries it for a month, the foreman quietly goes back to paper, and 'we tried an app, it did not work' becomes company lore.

After rolling out tracking in dozens of field companies — construction, cleaning, installation, maintenance — I have a short list of features that decide success or failure on a real site. This article is that list, with the reasons behind each item. Use it to evaluate any app, including ours.

Offline first, not offline as an afterthought

Basements, tunnels, mountain roads, buildings with the facade already closed: field work happens where mobile signal dies. An app that shows a spinner and an error at 7:00 on a site without coverage is dead by 7:05 — workers will not try twice, and they are right not to.

The requirement is precise: every entry must be recorded locally on the device the moment the worker taps, with the real timestamp, and synced automatically when the network returns. Not 'try again later', not a warning dialog. The worker taps, the app confirms, done. Whether the sync happens now or at the gas station an hour later is the software's problem, never the worker's. Test this before buying: airplane mode on, check in, airplane mode off, verify the entry arrives with the original time.

One button, ten seconds, or it will not be used

The daily interaction has to be embarrassingly simple: open app, one big button, arrive. Same on the way out. If checking in takes more than ten seconds or more than two taps, compliance decays week by week until the data is as full of holes as the paper was. Every extra field you make mandatory at check-in costs you a percentage of daily entries.

Simple also means no app store friction. A PWA — a web app added to the home screen — installs in seconds from a link, updates itself, and works the same on a five-year-old Android as on a new iPhone. In practice this matters more than it sounds: getting 15 workers through a store install with logins and updates is an afternoon of support. Sending them a link is not.

Location proof: GPS is not the only answer

You need to know the check-in happened at the site, not from the bakery across town. GPS at the moment of check-in covers most cases. But GPS has real limits: it fails inside concrete structures, some workers have privacy concerns about anything with the word location, and old phones can take a minute to get a fix.

The pattern that works is a QR sticker on the site: a laminated code at the container or entrance, the worker scans it while checking in, and the scan itself proves presence at that spot — no GPS involved. It costs nothing to print, survives rain if laminated, and workers actually prefer it because it is obvious and fair: scan the code, you are here, nothing tracks you afterwards. An app that offers only continuous GPS tracking will start a war with your crew that you do not need.

Kiosk mode for phone-free sites

On some sites, personal phones are not an option: workers who refuse to use their own device for work, sites where phones are banned, or teams where half the phones are too old. If the app cannot handle this, tracking will have a hole exactly where you need it most.

The answer is a kiosk: one cheap tablet mounted at the site entrance or in the container, running in a locked mode where each worker types a personal PIN to check in and out. One shared device, thirty seconds per person at shift start, and nobody had to install anything. A good app supports both models at the same time — phone check-in for those who want it, kiosk for the rest — because real companies always have both kinds of people.

Payroll export your accountant will accept

Tracking that ends in a pretty dashboard is half a product. The point of collecting hours is payroll, and payroll happens in Excel and in your accountant's software. The app must separate regular hours, overtime, and weekend hours by your rules, total them per worker per month, and export the whole thing to Excel or PDF in a form an accountant can use without retyping.

Check the details here, because this is where cheap apps fail quietly: can you define when overtime starts? Are weekends and holidays flagged automatically? Can you get hours per site, not just per worker, so you finally know what each job cost in labor? If the export is a CSV dump of raw punches, the retyping day you were trying to eliminate just moved from the timesheet to the export.

Nice to have, genuinely: what comes after hours

Once check-in works, companies quickly want the next things: daily reports with photos from the site, task assignment for the morning, defect reports with a picture, material and tool tracking. There is a trap on both ends. An app that does only hours means a second and third app within a year. A monster ERP that does everything means paying for forty features while using six, and a UI no foreman will open.

The structure that ages well is modular: a small core — hours, workers, offline — plus modules you switch on when you actually need them, priced per worker so a 12-person company is not paying enterprise money. Start with hours alone if you want. Add site QR codes when you open the second site. Add payroll calculation when the accountant asks. Each module should cost cents per worker per month, not require a new contract.

The checklist, and where we stand

Summarized as questions to ask any vendor: Does check-in work with zero signal, and sync itself later? Is the daily interaction under ten seconds? Is there a QR alternative to GPS, and a kiosk PIN mode for shared devices? Does it install without an app store? Does the payroll export separate regular, overtime, and weekend hours per your rules, in Excel or PDF? Can you buy a small set of modules now and add more later? A no on any of the first five means the app was not built for field work.

We built Radna evidencija to pass exactly this checklist, because we watched office-first apps fail on real sites: one-tap PWA check-in that works offline, QR site stickers, kiosk tablet with PINs, payroll-ready Excel and PDF exports, and 21 modules you can combine freely — most companies start with five and grow. You can see everything that exists at /moduli, how it looks at real companies at /rezultati, and request a process analysis for your own company at /kontakt.