The verdict in three sentences
A maintenance SME in Amsterdam with 40 technicians typically loses 8,000 to 15,000 EUR of tools per year simply because nobody knows who borrowed what. An equipment checkout app with QR labels brings those losses below 2,000 EUR within the first year, for an investment of 2,500,000 to 4,000,000 FCFA, i.e. 3,810 to 6,100 EUR excl. VAT on the Kolonell grid at simple complexity. The choice between SaaS and custom comes down to one question: do your workflows (job sites, vans, calibration) fit a standard tool or not.
What the lack of traceability really costs
The operations director rarely sees a single big loss. He sees a missing hammer drill, a thermal camera 'lent' to a subcontractor, a set of torque wrenches left on a site in Rotterdam. Added up, these losses are heavy.
| Loss item (SME, 40 technicians, Amsterdam) | Before the app | After the app (year 1) |
|---|---|---|
| Lost or unreturned tools | 9,500 EUR | 1,400 EUR |
| Emergency repurchases (20 to 30 % premium) | 2,600 EUR | 500 EUR |
| Search time (35 min per technician per week) | 41,000 EUR of loaded time | 9,000 EUR |
| Missed calibrations (penalties, rework) | 1,800 EUR | 200 EUR |
| Site downtime for lack of a tool | 3,200 EUR | 800 EUR |
| Estimated total | 58,100 EUR | 11,900 EUR |
These amounts are a 2026 order of magnitude based on a loaded hourly rate of 45 EUR. Search time is usually the most underestimated item: it pays for the project far more than the tools themselves.
SaaS, custom build or Kolonell grid: the numbers
The market offers three routes. Tool tracking SaaS products deploy fast but bill per user, which gets expensive beyond 40 accounts. A local agency charges between 8,000 and 18,000 EUR excl. VAT for a full custom build, according to our market estimates.
| Option | Upfront cost | Recurring cost | Lead time | Limits |
|---|---|---|---|---|
| Shared spreadsheet | 0 EUR | 0 EUR | 1 day | No real traceability, no mobile |
| Tool tracking SaaS (market estimate) | 500 to 1,500 EUR setup | 5 to 12 EUR per user per month | 2 to 3 weeks | Imposed workflows, data outside your control |
| Local custom agency (market estimate) | 8,000 to 18,000 EUR excl. VAT | 150 to 400 EUR per month | 8 to 12 weeks | High budget for an SME |
| Kolonell, simple complexity | 2,500,000 to 4,000,000 FCFA (3,810 to 6,100 EUR excl. VAT) | Maintenance 75,000 FCFA per month (110 EUR) | 6 weeks | Scope fixed at kickoff |
| Durable QR labels | 0.20 to 0.60 EUR each | 5 % replaced per year | 1 week | Metal labels for exposed tools |
With 40 users, a SaaS at 9 EUR costs 4,320 EUR per year, the price of a custom app in under 18 months, and it never belongs to you.
The features that make the difference
A good checkout app stays simple in the field: the technician scans the tool's QR code, then his badge, and the checkout is logged in three seconds. In the office, the operations director sees a live map of tools by site or by van.
Modules to put in the specification:
- Checkout and return by QR scan from an Android phone or iPhone, including offline with deferred sync.
- Automatic reminders by SMS or email when a tool exceeds its loan period.
- Calibration and safety inspection tracking with alerts 30 days before the due date.
- Per-tool history: who had it, for how long, condition on return, photos.
- Accounting export of the valued inventory for the balance sheet.
Options such as Bluetooth beacons on toolboxes (15 to 30 EUR per beacon) push the project to medium complexity, between 4,000,000 and 7,000,000 FCFA (6,100 to 10,670 EUR excl. VAT).
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Mini case study
Illustrative example: Thomas, operations director of an industrial maintenance SME in Amsterdam, manages 40 technicians and 1,200 registered tools. He labels 1,200 tools at 0.40 EUR, i.e. 480 EUR. He chooses a custom app at 5,000 EUR excl. VAT and maintenance at 110 EUR per month, i.e. 1,320 EUR per year. Total first-year cost: 6,800 EUR. If direct losses drop from 9,500 to 1,400 EUR and search time is only halved (20,000 EUR recovered), the net gain exceeds 21,000 EUR. Payback comes in under four months.
FAQ
How much does a custom tool tracking app cost in Amsterdam in 2026?
Local agencies usually charge 8,000 to 18,000 EUR excl. VAT according to our market estimates. The Kolonell grid places this kind of project at simple complexity, between 2,500,000 and 4,000,000 FCFA, i.e. 3,810 to 6,100 EUR excl. VAT.
Do I need RFID tags or are QR codes enough?
For an SME, QR codes at 0.20 to 0.60 EUR each cover 90 % of needs. Passive RFID costs 1 to 3 EUR per tag plus readers from 300 EUR, mainly useful for mass inventories.
Does the app work without network on a job site?
Yes, if it is built offline-first: scans are stored on the phone and synced when the network returns. This mode adds about one week of development.
How long before go-live?
Allow 6 weeks for a complete version at simple complexity, plus one week of labelling. A pilot with a team of 10 technicians is advisable during the first 15 days.
What does monthly maintenance include?
At 75,000 FCFA per month (110 EUR), it covers security updates, monitored hosting and minor fixes. Functional changes are quoted separately.
Let's scope your project. Tell us about your tool fleet, headcount and calibration constraints: we define the scope, an indicative budget between 2,500,000 and 4,000,000 FCFA and a 6-week 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.
