Visitor Management and Badge Access App: Custom Build Cost (2026)

The verdict in three sentences

For a headquarters and industrial group welcoming more than 1,500 visitors a month across at least three sites, the paper logbook has become both a security risk and a GDPR liability. A visitor management SaaS (EUR 300 to 750 a month) fits a single head office with no access control system to integrate. Once you need to run plants, warehouses and existing access controllers, a custom app at EUR 17,000 to 33,000 excluding VAT pays back in under four years and keeps you in control of the data.

Paper logbook, SaaS or custom build: what you really pay

The paper logbook looks free. In practice it ties up a receptionist or guard for 3 to 5 minutes per visitor, exposes the names and ID numbers of every previous visitor to each new arrival, and produces no reliable list during an evacuation. Under GDPR, these are personal data: purpose, retention period and visitor information must be documented.

Over 5 years, a SaaS billed EUR 560 a month for 6 sites amounts to EUR 33,600, with no code ownership and no control over hosting. A EUR 24,500 app with EUR 375 monthly maintenance comes to about EUR 47,000 over the same period, but covers turnstile integration, per-plant briefings and the reports your clients or insurers require. The tipping point depends on the number of sites and the depth of integration you expect.

The modules that justify the budget

A visitor management app that serves a security director is more than a tablet at reception. The following modules carry most of the value, and of the estimate.

The realistic timeline is 10 to 14 weeks: 2 weeks of scoping and auditing existing controllers, 6 to 8 weeks of development, 2 to 4 weeks of acceptance testing and site-by-site rollout. Access controller integration is the most variable line: a recent system with a documented API connects in a few days, an older estate may need a dedicated gateway.

GDPR: points to lock down at scoping

GDPR requires a lawful basis, visitor information, data minimisation and a defined retention period. In practice, a well-designed app keeps identity data for 3 to 6 months unless there is an incident, masks ID numbers on everyday screens and logs every access. Photos and biometrics call for a specific impact assessment: most groups stick to QR codes and a reception photo, without fingerprints. Plan an information notice at reception and a mention in the invitation email.

Mini case study

Sophie, facilities director of a food-processing group in northern France, runs a head office, two plants and three warehouses. Her group receives 2,400 visitors a month. With the paper logbook, each check-in takes 4 minutes: 160 hours a month of reception time, about EUR 4,800 at a loaded cost of EUR 30 an hour. After deploying a EUR 22,000 app with pre-registration, 70 % of visitors arrive with a QR code and check-in drops to 40 seconds on average: 30 hours remain, saving EUR 3,900 a month. Add the SaaS she no longer needs at EUR 600 a month, and an evacuation drill where the list of people on site is ready in 30 seconds instead of 15 minutes. With EUR 375 of maintenance, the net gain is about EUR 4,100 a month: the investment pays back in under 6 months, not counting the value of a controlled evacuation.

FAQ

How much does a custom visitor management app cost in 2026?

Budget EUR 17,000 to 33,000 excluding VAT for a multi-site app with pre-registration, QR badges and an evacuation list. Hosting and maintenance add EUR 240 to 560 a month depending on the number of sites.

Can we keep our existing access controllers and badges?

In most cases, yes: the app activates temporary badges through the controller's API or a gateway. A 3 to 5 day audit at the start of the project prices the integration, which usually represents 15 to 25 % of the budget.

What GDPR obligations apply to a digital visitor log?

You need a lawful basis, visitor information, data minimisation and a retention period, often 3 to 6 months. The app must support automatic purging and log every access to the data.

How long does a 6-site rollout take?

Allow 10 to 14 weeks from scoping to full go-live. The pilot site can be live by week 9, with the others following at one or two sites a week.

Does the app work if the network goes down at an industrial site?

Yes, the kiosk can run in degraded mode and sync entries once the network returns. This mode adds about 5 to 8 % to the budget but is essential on remote sites.

Let's scope your project. Tell us your number of sites, monthly visitor volume and current access controllers: we will price an app between EUR 17,000 and 33,000 excluding VAT with a 10 to 14 week plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.