Terms of service

Last updated: 2026-10-23

These terms apply when a business uses Whistle Booking, a service of Whistle Solutions (KvK 94796882), "we" below. Whistle Booking is for businesses only, not for consumers.

1. The service

Whistle Booking is online software for appointments: a booking page, a calendar, client records, emails to clients and the optional features you switch on. We keep it running, safe and up to date, and we may improve or change features over time.

We do our best to keep the service available at all times, but we cannot promise it will never be interrupted. We plan maintenance outside busy hours where we can.

2. Your account

You give correct details and keep your sign-in safe. You are responsible for what happens in your account, including what your team members do.

You only use Whistle Booking for lawful business purposes. You may not send spam, upload harmful content or try to break or overload the service.

3. Prices and payment

The price is €15 per month per business, including 3 team members, plus €5 per month for each extra team member. Prices exclude VAT.

You pay monthly in advance. Optional features with a usage cost (such as newsletters) are shown with their price before you switch them on, and are charged afterwards.

We may change prices with at least 30 days' notice by email. If you do not agree, you can stop before the new price applies.

4. Payments from your clients

When you take online payments, you connect your own Mollie account. Payments from your clients go directly to that account. We never receive or hold that money, and Mollie's own terms apply between you and Mollie.

You set your own prices, deposits and cancellation rules for your clients, and you are responsible for refunds to them.

5. Stopping

You can stop at any time in your account or by email. You keep access until the end of the month you paid for; payments already made are not refunded.

We may stop or pause an account that breaks these terms or does not pay, after a warning by email unless there is an urgent reason.

After you stop, you can download your data for 30 days. Then we delete it, except what the law requires us to keep.

6. Your data

Your data and your clients' data belong to you. We process client data only on your behalf, under the processing agreement, which is part of these terms.

7. Liability

Our total liability is limited to the amount you paid us in the 12 months before the damage. We are not liable for indirect damage, such as lost turnover or missed bookings, unless caused by our intent or gross negligence.

8. Changes and law

We may change these terms with at least 30 days' notice by email. Dutch law applies. Disputes go to the competent court in the Netherlands.