Estimate the investment for your booking system – from appointment slots to resource planning, online payment and calendar sync.
In brief
The investment frame for a booking system is EUR 5,950 – 83,231 excl. VAT. Resources, payment and calendars move the project inside that band.
The upfront cost can be spread over 72 months. Terms are on the software financing page.
Related: booking systems.
The calculation follows six visible stages. All figures remain planning values until scope and assumptions have been reviewed.
1. Capture inputs
The calculator records the visible project, volume, complexity and operating parameters selected on this page.
2. Add fixed components
Fixed base modules and selected add-ons are added without mixing them with recurring charges.
3. Apply multipliers
Quantity, complexity and scope factors multiply only the cost components identified for them in the calculator model.
4. Create the range
The calculator applies its documented lower and upper uncertainty factors to the base result; ROI views keep investment and savings visible separately.
5. Round and calibrate
Monetary result fields are rounded to the nearest whole euro. Public project-cost components are calibrated with the centrally maintained display factor.
6. Classify the result
The result is shown as non-binding guidance. A binding quote requires scope, data, integrations, risks and acceptance criteria to be reviewed.
Efficiency or discount factor: A central display factor of 0.7 is applied to public project-cost components to keep all calculators aligned with the currently reviewed pricing basis. It is not a customer-specific discount; customer-entered wages, revenues and existing operating costs are not reduced.
Why this is not a binding quote: The calculator cannot verify complete requirements, third-party dependencies, data quality, legal constraints or acceptance criteria.
Concrete project profiles with assumptions and indicative budgets—useful for internal alignment alongside the calculator.
FAQ
Online appointment booking with calendar and confirmations sits in the investment frame EUR 5,950 – 83,231 excl.
VAT. Resource planning, online payment and staff management stay in that same band. The calculator narrows it by booking type, volume and payment.
SaaS tools cover simple appointment booking well.
A custom system pays off with complex rules (rooms, equipment and staff booked together), industry-specific flows, integration with your ERP, or when booking data must not sit on US servers – and per-employee licence fees disappear.
Resource and capacity logic (multiple rooms, devices, staff per booking), online payment with cancellation rules, and two-way calendar synchronisation.
Plain appointment slots with fixed duration are much cheaper.
Discuss your booking project
We clarify booking rules, capacities and integrations in a free initial consultation.
Via two-way sync with Google Calendar, Outlook/Microsoft 365 or CalDAV: external appointments block booking slots automatically, booked appointments appear in the staff calendar.
This reliably prevents double bookings.
Payment providers, cancellation and refunds sit in the investment frame, not as a second fixed price.
Provider transaction fees are separate. Deposits cut no-shows sharply.
Hosting, updates and support are monthly operations beside the investment frame, independent of headcount.
SaaS alternatives charge per user per month; from roughly 10–15 employees the custom solution often pays for itself through licence savings alone.
| Model | When it fits | Budget & flexibility | Typical risks |
|---|---|---|---|
| Fixed price (fixed scope) | Clearly defined scope, stable requirements, repeatable delivery. | Predictable total cost; little room for change without a change order. | Scope creep leads to change orders or quality trade-offs. |
| Time & Material | Discovery, legacy, evolving requirements, or close collaboration. | Maximum flexibility; budget transparent via hourly or daily rates. | Without prioritisation, effort can grow—backlog and reviews matter. |
| Retainer / maintenance package | Ongoing operations, updates, small features, and support. | Agreed capacity per month; predictable follow-on cost. | Large changes may still need a separate estimate. |
| Hybrid (milestone + T&M) | MVP or phased releases with clear go-lives, then iterate. | Core delivery fixed price; extensions on a time-and-materials basis. | Define contractually what is in scope vs. extra work. |
Calculators on this page provide indicative ranges; we choose the right model with you based on risk, scope, and planning horizon.
The ranges shown are indicative. For a binding quote we discuss scope, priorities and funding options in a free intro call. Many digitalization projects qualify for grants – try our funding calculator.
Browse all cost calculators, explore services and typical solutions. Questions about booking system? Contact us.
After using the booking system calculator, validate assumptions in a short intro call.
Browse all cost calculators in the costs overview.
What does your online booking cost?
Interactive estimate based on your inputs.
Non-binding project range from the software cost calculator: EUR 10,332 – 372,623 excl. VAT.
Methodology: The estimates are based on historical project data, complexity drivers and standard implementation assumptions. Results are a non-binding indication only; effort and price must be calculated individually.
If you are still deciding
If you are ready to implement
Calculator overall range
EUR 16,800–196,000 excl. VAT, depending on product scope
The overall range is derived from the valid parameters of the relevant cost calculator.
Typical duration
2–12 months
Main risk drivers
Non-binding indication
This result is only a non-binding indication based on typical assumptions. Effort and price must be calculated individually for your project.
A transparent four-step process for validating the Booking System indication with concrete requirements.
1. Confirm scope and target outcome
We clarify the business outcome, user groups, and boundaries relevant to Booking System.
2. Review data, interfaces, and risks
We validate integrations, data quality, security, compliance, and operational dependencies.
3. Check the calculator assumptions
We compare the selected parameters with the real system landscape and document deviations.
4. Prepare the precise quote
You receive a scoped proposal with milestones, exclusions, price model, and next decision point.
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