The verdict in three sentences
Custom management software for a private clinic in Lyon costs 55,000 to 140,000 EUR in 2026, excluding the mandatory certified health-data hosting (HDS) at 800-2,500 EUR/month for medical data. Health GDPR compliance and HDS certification explain the price gap with an ordinary business tool. The return comes mainly from a 20 to 30 % cut in no-shows and billing automation, which free up clinical time and secure revenue.
Custom build vs healthcare vendor solution
Healthcare vendors (Softway, Maincare, Web100T) cover the regulatory base but leave little room for patient experience. Custom excels at the patient portal and OR orchestration.
| Criterion | Healthcare vendor | Custom |
|---|---|---|
| Upfront cost | 15,000 - 40,000 EUR (integration) | 55,000 - 140,000 EUR |
| Monthly subscription | 1,500 - 5,000 EUR | HDS hosting 800 - 2,500 EUR |
| HDS hosting | Per plan | Included in run |
| Custom patient portal | Limited | Total |
| Custom OR scheduling | Standard | Fits your flows |
| Health GDPR compliance | Yes | Yes (by design) |
| Time to deploy | 3 - 6 months | 6 - 9 months |
| Code ownership | No | Yes |
Budget line items of a clinic build (2026 order of magnitude)
| Line item | Budget EUR |
|---|---|
| Scoping + specs + patient journey | 8,000 - 14,000 |
| Patient portal (booking, documents) | 14,000 - 28,000 |
| OR scheduling + resources | 12,000 - 26,000 |
| Billing + third-party payment | 10,000 - 22,000 |
| Health GDPR + HDS compliance | 6,000 - 12,000 |
| Automated SMS/email reminders | 4,000 - 9,000 |
| Data migration + UAT + training | 8,000 - 16,000 |
| Build total | 62,000 - 127,000 |
Add annual maintenance of 15 %/year, roughly 9,300 to 19,000 EUR for these amounts.
Mini case study
Dr Nguyen runs a private day-surgery clinic in Lyon with 9,000 consultations/year and a no-show rate of 14 %, i.e. 1,260 lost appointments. At an average value of 75 EUR per missed consultation, that's 94,500 EUR/year of lost capacity. Custom software at 95,000 EUR (+ 14,250 EUR maintenance and 1,400 EUR/month HDS) with automated SMS reminders brings no-shows down to 9 %. Recovered consultations: 450/year x 75 EUR = 33,750 EUR/year, before counting faster billing. The project pays back in about 3 years on that lever alone, faster once admin time savings are added.
FAQ
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Is HDS hosting really mandatory?
Yes, as soon as you store or process personal health data. The host must be HDS-certified; budget 800 to 2,500 EUR/month depending on redundancy and volume. It's a legal requirement, not an option.
Can we start with just the patient portal?
Yes, and it's often the best entry point. A booking portal with automated reminders (18,000 to 30,000 EUR) quickly captures the no-show reduction, then scheduling and billing are added in batches.
What's a realistic timeline for a mid-size clinic?
Six to nine months for the full scope. The compliance base (health GDPR, HDS) and clinical UAT extend the schedule versus an unregulated business tool.
How do we connect to existing systems (HIS, patient record)?
Via standardised interfaces (HL7, FHIR) or vendor APIs. Plan an interoperability batch of 8,000 to 20,000 EUR depending on the number of systems to connect.
What's the annual maintenance budget?
Between 12 and 18 % of the build, roughly 9,300 to 19,000 EUR/year for a 95,000 EUR project, on top of HDS hosting. It covers security, regulatory updates and enhancements.
Let's scope your project. Share your consultation volume, OR setup and compliance constraints and we'll price build, HDS and maintenance. 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.
