October 2, 2026
These terms and conditions apply to users of the Siip app.
Siip Custodian B.V. and its group companies (hereinafter collectively referred to as: Siip) offer many different services. All services are based on the control you have over your personal data. As a user, you always have control over the data that is shared. These terms and conditions apply only to the Siip app and the “Trusted by Siip” apps offered by Siip. Your personal data is stored exclusively on your smartphone. Due to the nature of the Siip app's services, Siip shares data with other parties at your request and with your explicit consent. Siip ensures that no unnecessary data is shared.
Do you use any of Siip's services?
By doing so, you agree to the terms and conditions and the privacy policy.
You can read our terms and conditions below. They explain what you can do with the Siip app, how to register, how the app is secured, what we expect from you, and what you can expect from us. Take a look at the privacy policy via this link. It explains how we handle your data.
1. What can you do with the Siip app?
- Gain access and register. With full control over your personal data.
- Securely sign up, share data, and log in to mobile apps or websites.
- Approve your transactions – the easy way.
2. How can I register with Siip?
- You will need a smartphone and a valid form of identification for this.
- Download the (Trusted by) Siip app via the App Store or Google Play.
- Follow the steps in the Siip app to complete your registration.
3. How secure is the app?
- We believe it is very important to handle your data with care.
For information on how we handle this, please read our privacy policy.
4. What do we expect from you?
- You are the rightful owner of your phone number and email address.
- You have a valid form of identification; a passport, ID card, or driver's license, and youuse your own document.
- You ensure that your smartphone, browser, operating system, and internet connection are up to date and secure. For example, by installing the latest software updates.
- You ensure that only you have access to the Siip apps. You do not hand over your smartphone to anyone else so that they can impersonate you.
5. What can you expect from us?
- Your data is securely encrypted and stored on your smartphone.
- You are in control of your own data.
- That the app works smoothly, easily, and securely. And that should an unexpected outage occurs, we will resolve it quickly.
- If you decide to stop using the app and want all your data in the app to bedeleted? You can delete your account in the Siip app at any time. Once this data is deleted, you will no longer be able to use the associated services.
- We may terminate your Siip account. If you do not follow our rules, we always reserve the right to remove or block your email address without warning.
Does Siip change these general terms and conditions?
We will notify you in advance via a message in the (trusted by) Siip app. If you do not agree with our (amended) terms, you can delete your account in the (trusted by) Siip app at any time. This can be done easily via the 'delete account' button on your profile page. Once this data is deleted, you will no longer be able to use the associated services.
All our services our governed by Dutch law.