Attendance for workers who don’t own a smartphone

Here’s the objection that kills most “digital attendance” ideas on a real construction site: “Half my workers don’t have smartphones.” It’s a fair objection, and most attendance apps quietly ignore it. They assume every worker will download an app, log in, and tap a button — which is a fine assumption in an office and a useless one at a building site where much of the crew is casual labour paid by the day. If a system only works for workers with phones, it doesn’t work for construction.

The mistake: putting the technology in the worker’s hand

The flaw in most designs is that they require the worker to own and operate the device. That’s backwards for this environment. It excludes the exact people you most need to track — the day labourers, the newest hires, the workers for whom a smartphone is a luxury — and it turns attendance into a support problem: forgotten passwords, dead batteries, lost phones, and “it’s not working” at 6am.

The fix: the worker carries a card, not a phone

Twese flips it around. The worker doesn’t need a phone, an app, or a login. They carry a durable printed QR card — the same idea as an ID badge. At the gate, a timekeeper with one scanning device scans each worker’s card in and out. The technology sits with the timekeeper, where it can be managed, charged, and supported; the worker just needs to hold up a card. That’s something every worker can do, on their first day, with zero training.

This isn’t a compromise or a “basic mode.” It’s the right architecture for a workforce where phone ownership is uneven. In Rwanda, the overwhelming majority of construction labour is informal and paid by the day, and you cannot build an attendance system that only counts the workers wealthy enough to own a smartphone. A card-based system counts everyone equally.

And for the workers who do have phones

Having a phone still helps — it just isn’t required. A worker with a smartphone can open the Twese app to see their own attendance and hours, check which pay periods have been marked paid, and settle any question before payday instead of arguing about it at the cash desk. So the system rewards phone owners with self-service, while never punishing the workers who don’t have one. Attendance still gets captured for everybody, the same way, at the gate.

What actually changes

You get accurate, verifiable attendance for your entire crew — not just the part of it that owns a smartphone. No worker is left off the record because of what’s in their pocket, and no worker is turned into an IT problem. The card is simple, the scan is instant, and the data is complete. That’s what it takes for digital attendance to actually work on a construction site, instead of only in a brochure.