The verdict in three sentences
A van rental company still doing inspections on paper cannot prove that a scratch or a broken mirror happened during the rental, so it gives up on recharging: for 220 vehicles and 4 branches, the loss reaches 40,000 EUR a year (roughly 60,000 CAD). A custom app for contracts and tablet inspections, with time-stamped photos, e-signature and card pre-authorisation deposits, costs 25,000 to 50,000 EUR (about 37,000 to 75,000 CAD). It deploys in 3 to 4 months and usually pays back in under a year.
The rental journey to digitise
The gain comes from continuity: one digital file follows the vehicle from pick-up to return. At pick-up, the agent photographs the 8 required angles, the customer signs on the tablet and the card is pre-authorised. On return, the app compares photos, the agent tags new damage, and the repair estimate goes to the customer with the evidence.
| Function | What it fixes | Indicative 2026 cost (EUR) |
|---|---|---|
| Digital rental agreement | Terms, options, mileage, scanned licence | 4,000 to 8,000 |
| Tablet inspection | 8 guided photos, time stamp, geolocation | 5,000 to 10,000 |
| Pick-up vs return comparison | Side-by-side photos, damage tagging | 3,000 to 7,000 |
| E-signature | Enforceable agreement and inspection | 2,000 to 4,000 |
| Card pre-authorisation deposit (Stripe or bank) | Hold of 500 to 1,500 EUR equivalent | 3,000 to 6,000 |
| Automatic damage recharging | Price grid, estimate, card charge | 4,000 to 8,000 |
| Integration with existing booking and billing, training | Go-live across 4 branches | 4,000 to 7,000 |
Total: 25,000 to 50,000 EUR, plus 300 to 600 EUR a month for hosting and maintenance.
Off-the-shelf rental software or custom app
Off-the-shelf vehicle rental software covers bookings and invoicing. Its inspection module is often basic: free-form photos, no comparison, no recharge grid.
| Criterion | Off-the-shelf rental software | Custom Kolonell app | Paper and a camera |
|---|---|---|---|
| Upfront cost | 2,000 to 8,000 EUR | 25,000 to 50,000 EUR | 0 EUR |
| Recurring cost | 8 to 20 EUR per vehicle per month, i.e. 21,000 to 53,000 EUR a year | 3,600 to 7,200 EUR a year | 40,000 EUR of lost damage |
| Guided photos and comparison | Basic | Complete | No |
| Damage recharge grid | Rare | Configurable by category | No |
| Card pre-authorisation | Depends on vendor | Built in | Cheque or cash |
| Time to go-live | 1 to 2 months | 3 to 4 months | Immediate |
A middle option exists: keep your booking software and add only the custom inspection and recharge module, for 18,000 to 30,000 EUR.
What the rules mean in practice
A two-party inspection signed by both sides is strong evidence. Time-stamped photos and an e-signature reinforce it in a dispute. A card pre-authorisation typically holds for about 7 days, enough for most short rentals; beyond that, the app renews it automatically.
Mini case study
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Mr Delattre, managing director of a van rental company, runs 220 vehicles and about 9,000 rentals a year. Damage is found on return in 6% of rentals, 540 cases, of which only a quarter are recharged today. With an app at 38,000 EUR, he recharges 75% of cases at an average of 150 EUR: about 61,000 EUR billed against 20,000 EUR before, so 41,000 EUR more per year. Add 15 minutes saved per inspection across 18,000 check-outs and check-ins, over 4,000 agent hours. Payback: under 11 months.
FAQ
Do agents need special tablets?
No, a standard Android tablet or iPad is enough, between 250 and 600 EUR each. Plan 2 tablets per branch, so 8 for a 4-branch network.
Can the customer dispute damage?
Yes, they receive the pick-up and return photos side by side by email. In practice, disputes fall by 50 to 70% once evidence is sent within the hour.
Does the app work in a car park with no signal?
Yes, the inspection is saved offline and syncs once the tablet is back on 4G or Wi-Fi. An inspection weighs 5 to 10 MB with compressed photos.
Can you connect our current booking software?
Yes, if it has an API or export. The connector is included for common products and costs 2,000 to 5,000 EUR for an in-house tool.
How long does agent training take?
Half a day per branch is enough. Photos are guided step by step, and a full inspection takes 4 to 6 minutes versus 15 to 20 on paper.
Let's scope your project. Tell us your vehicle count, branches and current software and we will price an app between 25,000 and 50,000 EUR, delivered in 3 to 4 months. 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.
