The verdict in three sentences
Planning on-call duties and night rotas for 280 consultants and 900 nurses in spreadsheets costs a 4-hospital group about 2 days per month per ward manager, before counting on-call pay errors. A custom application with validated shift swaps, payroll export and healthcare-grade hosting ships in 3 to 5 months. It beats an off-the-shelf rostering tool at £3.50 to £8 (€4 to €9) per staff member per month as soon as local rules (resident on-call, non-resident on-call, compensatory rest) stop fitting standard boxes.
The hidden cost of spreadsheets in a London or Dublin hospital group
In a private hospital group in London or Dublin, each site has its own logic: maternity runs 24-hour resident on-call, the orthopaedic theatre runs non-resident on-call, intensive care runs a two-tier rota. Ward managers build the monthly rota in Excel, email it, then handle swaps by text message. Payroll then re-keys on-call allowances and night enhancements. Result: rota gaps found the day before, rest rules breached and disputes over allowances.
| Current cost item | Volume for 4 hospitals | Estimated annual cost (order of magnitude 2026) |
|---|---|---|
| Ward manager rota time | 24 managers × 2 days a month | 576 days, about £155,000 |
| Handling shift swaps | 150 swaps a month | 300 hours, about £10,500 |
| Payroll re-keying of allowances | 4 days a month in payroll | 48 days, about £11,000 |
| Corrected allowance errors | 1 to 2% of the on-call budget | £7,000 to £14,000 |
| Last-minute agency cover for gaps | 6 to 10 shifts a year | £8,000 to £14,000 |
| Total | £191,500 to £204,500 |
The first item dwarfs the rest. Halving ward manager rota time frees close to 290 days of clinical presence a year.
Off-the-shelf rostering or a custom application
Healthcare rostering software charges between £3.50 and £8 per staff member per month in 2026 (€4 to €9 in Ireland). For 1,180 staff, that means £49,560 to £113,280 a year, plus £13,000 to £35,000 of initial configuration. These tools are solid on working time regulations but less flexible on the specific arrangements for consultants with practising privileges, who are not employees of the hospital.
| Criterion | Off-the-shelf tool | Kolonell custom application |
|---|---|---|
| Annual cost for 1,180 staff | £49,560 to £113,280 | Maintenance 35,000 to 120,000 FCFA a month (53 to 183 EUR) |
| Initial cost | £13,000 to £35,000 of configuration | Complex tier: 7,000,000 to 15,000,000+ FCFA (10,670 to 22,870+ EUR) |
| Consultants and employed staff in one tool | Often two separate modules | Single model |
| Site-specific rota rules | Limited configuration | Custom coded |
| Healthcare-grade hosting | Included | Quoted separately, with a certified host |
| Timeline | 2 to 4 months rollout | 3 to 5 months |
| Ownership of data and code | Vendor | Hospital group |
For a narrower scope, one hospital and nursing staff only, the medium tier of the grid, 4,000,000 to 7,000,000 FCFA (6,100 to 10,670 EUR), is usually enough.
The must-have features
The rule engine checks in real time the 11-hour rest after a night shift, the maximum on-call shifts per month and the required grade per rota line. The swap marketplace lets a doctor offer a shift, a qualified colleague accept it and the clinical lead approve in one click. Allowance calculation applies the on-call rates, call-outs and enhancements automatically, then exports to payroll. Notifications (mobile app and SMS) flag rota gaps 72 hours ahead.
Healthcare-grade hosting matters as soon as the application processes health data. A named rota normally contains none, but adding sickness absence or occupational health information changes that. In the UK this means aligning with the NHS Data Security and Protection Toolkit expectations; in Ireland, GDPR special category data rules. Plan for it from day one.
Mini case study
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Siobhan, director of nursing at a 4-hospital private group in Dublin, compares two options for 1,180 staff. Off-the-shelf tool at €6 per staff member per month: 1,180 × 6 × 12 = €84,960 a year, plus €25,000 of configuration, so €279,880 over 3 years. Custom application at the top of the complex tier: about 22,870 EUR, plus 183 EUR a month for premium maintenance (6,588 EUR over 3 years), plus hosting quoted separately. Even budgeting €60,000 over 3 years for hosting and enhancements, the total stays under €90,000. The gap exceeds €189,000 over 3 years, and the 24 ward managers each win back about 1 day a month.
FAQ
Can the app handle both consultants and employed nurses?
Yes, that is one of the main benefits of custom software. Two statuses with different pay rules live in a single rota shared by the 4 hospitals.
How long to roll out across 4 hospitals?
Allow 3 to 5 months of development, then a one-month pilot on one ward. Full rollout follows hospital by hospital, 2 to 3 weeks each.
Is certified healthcare hosting mandatory?
As soon as the tool stores health data, yes in practice. A compliant host costs from a few hundred to a few thousand pounds a month depending on volume in 2026, order of magnitude. Kolonell quotes hosting separately.
Will doctors actually use it?
If a swap takes under 30 seconds on a phone, yes. Successful projects reach 80% of swaps done through the app within 3 months.
Does it connect to our payroll system?
Through a monthly export in the expected format (CSV or import file). Direct API connections usually add 10 to 15% to the budget.
Let's scope your project. Share a sample rota and your on-call rules per hospital, and we will scope the application and its hosting over 3 to 5 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.
