The verdict in three sentences
On a site run the old way, the boss discovers the overrun when it is too late: supplier invoices and labour hours pile up with no alert. A site and cost tracking app compares real spend against budget in real time, sends a drift alert every day, and brings the average overrun from 15-25 % down to under 8 %. In 2026, budget 2,000,000 to 5,500,000 FCFA for development depending on the number of sites and modules.
Where the money leaks on a site
On a 40,000,000 FCFA site, each point of drift is worth 400,000 FCFA. Here are the line items that overflow most.
| Line item | Share of budget | Typical drift without tracking | Gain with digital tracking |
|---|---|---|---|
| Materials | 45-55 % | +12 to 20 % (waste, theft, over-ordering) | Down to +4-6 % |
| Labour | 25-35 % | +10 to 18 % (miscounted hours) | Down to +3-5 % |
| Subcontracting | 10-20 % | +8 to 15 % (untracked variations) | Down to +2-4 % |
| Equipment hire | 5-10 % | +15 to 30 % (idle days) | Down to +5 % |
| Contingency | 5-8 % | Not provisioned | Tracked provision |
Drift is not fate: it is a visibility problem. What is measured every evening almost never overruns by more than 8 %.
2026 cost and timeline grid
| Package | Features | 2026 build cost | Timeline |
|---|---|---|---|
| Single site | Budget, spend, photos, progress | 2,000,000 - 3,000,000 FCFA | 4-6 weeks |
| Multi-site | + labour clock-in, subcontracting, drift alerts | 3,500,000 - 4,500,000 FCFA | 6-9 weeks |
| Construction firm | + consolidation, margin per site, accounting exports | 4,500,000 - 5,500,000 FCFA | 9-12 weeks |
Maintenance: 75,000 to 200,000 FCFA/month. Supplier and subcontractor payments can be integrated via mobile money.
Mini case study
Ibrahim, a construction contractor in Lagos (Lekki), runs 3 sites in parallel for a combined budget of 90,000,000 FCFA. Historically he finishes with an 18 % overrun, i.e. 16,200,000 FCFA absorbed off his margin. After deploying the multi-site app (4,000,000 FCFA), daily drift alerts let him stop two cement over-orders and rein in a drifting subcontractor. The overrun falls to 7 %, i.e. 6,300,000 FCFA. Saving on this cycle: 9,900,000 FCFA. The app pays back on the first tracked site, and the gain repeats on every project.
FAQ
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How much does a site tracking app cost in 2026?
From 2,000,000 to 5,500,000 FCFA depending on scope. A one-site contractor starts at 2,000,000-3,000,000 FCFA; a multi-site firm targets 4,000,000-5,500,000 FCFA.
How much does the budget overrun actually drop?
An untracked site drifts by 15 to 25 %. Real-time tracking with a daily alert brings it under 8 %. On a 40,000,000 FCFA budget, that is 4,000,000 to 6,000,000 FCFA of protected margin.
Is the drift alert really daily?
Yes: every evening the app compares recorded spend against budget by line item and flags any drift. That frequency is what stops small gaps from becoming multi-million holes.
Can I pay suppliers and subcontractors from the app?
Yes, the payment module integrates mobile money, with traceability per site. Every disbursement is tied to a budget line.
How fast does it pay back?
Often on the first site: on a 40,000,000 FCFA project, saving 10 points of drift more than covers the 4,000,000 FCFA build.
Let's talk about your project. We'll scope your construction app around your real drift line items and a per-site ROI. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
