The verdict in three sentences
On a construction site, most overruns come not from technical surprises but from a lack of real-time tracking: miscounted materials, blurry hours, progress guessed by eye. A construction app that centralises worker time tracking, material tracking and budget vs actual comparison typically cuts losses by 10 to 20%. On an average site, this reduction far exceeds the app's development cost.
Where money leaks on a site
Three leaks dominate: materials (untracked over-consumption, theft, breakage), labour (hand-logged hours, errors, unchecked attendance) and reporting (the foreman spends hours reconstructing progress instead of producing). An app attacks all three: it locks real quantities, timestamps attendance and generates the client report automatically.
Development cost per tier (2026 order of magnitude)
| Tier | FCFA price | Included functions | Timeline |
|---|---|---|---|
| Starter | 2,500,000-3,500,000 | Worker time tracking, material tracking, progress photos | 5-7 weeks |
| Growth | 4,000,000-5,500,000 | + budget vs actual, PDF client report, multi-site, notifications | 8-12 weeks |
| Premium | 6,000,000-7,000,000 | + scheduling, subcontractors, overrun alerts, analytics, offline mode | 13-16 weeks |
Expected gains and ROI (2026 estimate)
| Item | Without app | With app |
|---|---|---|
| Material losses | 8-12% of materials budget | 3-5% |
| Reporting hours/week | 8-12 h foreman | 2-3 h |
| Average site delay | Frequent | -20 to -30% |
| Client billing disputes | High | Reduced (photo proof) |
| Annual maintenance | — | 500,000-1,000,000 FCFA |
Framing: on a 80,000,000 FCFA site with 40% materials (32,000,000 FCFA), cutting material losses from 10% to 4% saves about 1,920,000 FCFA on that single site — nearly half a Growth tier recovered on one operation.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Mini case study
Ibrahima, who runs a structural works firm, ran three simultaneous sites with paper and WhatsApp tracking. His material losses ran around 10% and his foreman spent a day a week on reporting. After a Growth tier at 4,800,000 FCFA, material losses fell to around 4% on a quarterly materials volume of 60,000,000 FCFA, i.e. 3,600,000 FCFA saved/quarter. Add the freed foreman time and fewer billing disputes: the app paid for itself within the first quarter.
FAQ
Does time tracking work without a connection on site? The Premium tier offers an offline mode that records locally then syncs on network return. It is essential on poorly covered sites.
How does the app reduce client disputes? Each step is timestamped and photographed: billed progress is proven. This shortens payment discussions and secures your work statements.
Will workers actually use it? Time tracking is designed to be done by the team lead in seconds, not by each worker. Adoption is simple because it replaces a notebook, not a complex software.
Can you track several sites in parallel? Yes, from the Growth tier, with a consolidated budget vs actual dashboard per site. It is the most profitable use case for a growing firm.
How much is maintenance? Count 500,000 to 1,000,000 FCFA/year depending on tier, including hosting, updates and support. Budget it from launch.
Let's talk about your project. We build your site management app with time tracking, material tracking and budget vs actual. 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.
