Construction Project Software Cost (2026)

The verdict in three sentences

For a construction SME, a vertical subscription (30 to 70 EUR/user/month) covers 80 % of site-tracking needs without heavy investment. Custom software (45,000 to 90,000 EUR excl. tax) only makes sense above 40 field staff or when your quantity-surveying and progress-claim processes are truly specific. Either way, the payoff is measured in cash flow: progress claims invoiced sooner and site overruns cut by 20 %.

Subscription vs custom: the 2026 figures

The market offers two main routes: vertical SaaS (a ready-made site-tracking tool) and custom development aligned with your price schedules. Here are the 2026 orders of magnitude.

For 15 field users, the subscription costs around 8,100 to 12,600 EUR/year. Over five years, custom becomes competitive once headcount exceeds thirty users and productivity gains justify the upfront investment.

What the field mobile app must cover

The value is created on site, not at the office. A serious field app in 2026 must work offline and push data as soon as the network returns.

Mini case study

Thomas runs a 22-employee structural works firm near Lyon, 15 of them in the field. His site managers spend 3 hours a week re-entering paper timesheets and reports, totalling 45 hours weekly. At a loaded cost of 32 EUR/hour, that is 1,440 EUR a week, nearly 69,000 EUR/year of diluted admin time.

By moving to a vertical solution at 50 EUR/user (9,000 EUR/year for 15 seats) plus 4,000 EUR setup, Thomas recovers 60 % of that time in year one, roughly 41,000 EUR. Add progress claims invoiced 10 days earlier on average against 3.2M EUR revenue: that is a cash-flow relief of tens of thousands of euros. The software pays for itself in under four months.

FAQ

Should I start with a subscription or custom? In 8 out of 10 cases, start with a vertical solution at 30-70 EUR/user to validate usage, then switch to custom if your processes block standardization. This avoids spending 60,000 EUR blind.

Is offline mode really essential? Yes. Many sites have poor 4G; without offline mode your teams fall back to paper and you lose 100 % of the benefit. Check for automatic sync when the network returns.

How much does accounting integration cost? Expect 3,000 to 12,000 EUR excl. tax depending on the accounting software and sync depth (entries, VAT, claims). It often has the best ROI because it removes double entry.

How long until we are operational? A vertical solution deploys in 3 to 6 weeks including training. Custom takes 4 to 7 months. Plan a pilot on a single site before the general rollout.

Can I reuse my existing price schedules? Yes, importing schedules and price libraries is part of scoping. Provide your current Excel files: they become the basis for configuring pricing.

Let's scope your project. Tell us your field headcount, your accounting/payroll software and your annual project volume, and within 48 h we'll tell you whether subscription or custom is more profitable, with a costed indicative budget. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.