The verdict in three sentences
For a 600-employee company in Amsterdam managing a 70-vehicle pool through a shared spreadsheet and a key cabinet, a custom booking and fleet tracking web app is one of the fastest-payback digital projects. As a 2026 order of magnitude in the Netherlands, budget 25,000 to 60,000 EUR, delivered in 6 to 10 weeks, plus 300 to 700 EUR per month for hosting and support. Most of the value comes from controlling energy use and mileage, where 15 to 20% of spend is commonly recovered.
The hidden cost of the spreadsheet and key box
In many Dutch companies (construction, distribution, utilities, home care), pool cars are booked through facilities: a shared sheet, emails, keys handed over without a mileage check. The result: cars held just in case, undeclared private trips, and fuel cards or charging receipts that cannot be matched to kilometres actually driven. With the mixed petrol, diesel and EV fleets now common in Amsterdam, reconciliation gets even harder.
Order of magnitude in 2026 for a 70-vehicle pool, at about 600 EUR of fuel or charging per vehicle per month:
| Item (2026 order of magnitude) | Without app | With app |
|---|---|---|
| Monthly energy spend for the pool | 42,000 EUR | 33,600 to 35,700 EUR |
| Annual energy spend | 504,000 EUR | 403,000 to 428,000 EUR |
| Real vehicle utilisation rate | 45 to 55% | 70 to 80% |
| Facilities time spent on the pool | 25 h per week | 8 h per week |
| Expired MOT (APK) or insurance detected | at random checks | alerts 30 days ahead |
| Fuel card vs mileage reconciliation | impossible | automatic per vehicle and driver |
A 15% saving already represents more than 75,000 EUR per year, i.e. one to three times the price of the app. Higher utilisation can also let you retire 5 to 10 vehicles.
Features and budget
A fleet app for a company this size stays a contained project if you focus on essentials.
| Module | Content | Typical budget share |
|---|---|---|
| Booking | calendar per vehicle, request from phone, manager approval | 20% |
| Key handover and return | mileage reading and odometer photo at each departure and return, or smart key box integration | 15% |
| Fuel and charging | fuel card and charge point imports, consumption per 100 km per vehicle | 20% |
| Maintenance and documents | servicing, APK, insurance, lease contract dates with alerts | 15% |
| Dashboards | cost per vehicle, department, driver, plus CO2 reporting for CSRD | 15% |
| Real-time GPS tracking | integration of existing telematics boxes | 15%, optional |
| Native mobile app | iOS and Android in the stores | optional, mobile web is enough at first |
The lower end (25,000 EUR) covers booking, keys, fuel and documents for a single site. The upper end (60,000 EUR) adds telematics, smart key boxes, SSO with Microsoft Entra ID and CSRD-ready emissions reporting. GDPR matters here: driver location data needs a works council (OR) consultation and a clear retention policy.
A 6 to 10 week project timeline
- Weeks 1 and 2: workshop with facilities and finance, fleet inventory (plates, types, assignments), approval rules, works council briefing.
- Weeks 3 to 6: build booking, keys and energy modules, import the existing fleet.
- Weeks 7 and 8: pilot with one department and 10 vehicles.
- Weeks 9 and 10: rollout to all 70 vehicles, training for drivers and managers (2 sessions of 2 h).
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Sanne, operations director of a 600-employee distribution company in Amsterdam, spends about 504,000 EUR per year on fuel and charging for 70 pool vehicles. Illustrative scenario: she picks a 45,000 EUR app plus 6,000 EUR of annual support. With a prudent 15% energy saving, i.e. 75,600 EUR, the net first-year gain reaches 24,600 EUR, and about 69,600 EUR from year two. The project pays back in roughly 7 months, not counting 17 facilities hours freed each week.
FAQ
How much does a company car pool booking app cost in Amsterdam in 2026?
As an order of magnitude, 25,000 to 60,000 EUR depending on telematics, smart key boxes and SSO. Hosting and support add 300 to 700 EUR per month.
Do we need GPS boxes in every vehicle?
Not to start: mileage readings with odometer photos recover most of the 15 to 20% saving. Telematics (often 15 to 30 EUR per vehicle per month on the market) can be added later.
Is driver tracking GDPR-compliant?
Yes if designed for it: purpose limitation, no tracking outside working hours, works council consultation and a retention period of typically 3 to 12 months.
How long until we are operational?
Between 6 and 10 weeks depending on sites and approval rules. A pilot department can use the tool from week 7.
Why not a SaaS fleet tool?
SaaS tools at 8 to 20 EUR per vehicle per month work for standard needs. Custom pays off when you need specific approval chains, ERP cost allocation or a mixed pool and lease setup.
Let's scope your project. Tell us your fleet size, number of sites and approval rules: we will price the scope, indicative budget and timeline. Detailed quote within 48 h. 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.
