Privacy Policy for Castor Mobile apps

By visiting our websites and and/or by using our services provided through our websites, we may process your personal data. We consider the careful handling of personal data of the utmost importance. For this reason, we observe due care in the processing and protection of personal data.

When processing we adhere to the requirements of applicable laws and regulations. This means we:

  • clearly specify our purposes before we process personal data, by using this privacy policy;
  • limit our collection of personal data to only the personal data needed for legitimate purposes;
  • first, ask for explicit permission to process your personal data in cases where your permission is required;
  • take appropriate security measures to protect your personal data and we demand the same from parties who process personal data on our behalf;
  • respect your right to inspect, correct or delete your personal data held by us.

In this policy, we will explain which personal data we collect and for which purposes. We recommend that you read it carefully.


Please note that this privacy policy is only applicable to your personal information when visiting our websites or using our services. Any personal data collected and processed by you (e.g. patient data) in relation to your (medical) study within our services are subject to our agreement with you, our general terms and conditions and/or a specific data processing agreement.


  1. Registration information
  2. Billing information
  3. Account settings
  4. Usage data
  5. Device used data
  6. Third-party referral website data
  7. Page tag data
  8. Cookies
  9. Any other information you willingly share with us

We use Satismeter to collect feedback from you to help us understand your needs, improve our customer support, and inform our product development. Through a dashboard, we see trends in our customers’ satisfaction as well as individual responses from visitors and users. Our support team may occasionally contact you, via your contact details, to help improve our websites and services.


When visiting our websites, we may process your IP-address, language settings, browser version, the type of device you are using and your browsing and click behaviour. Some of this information is necessary to visit our website. For example, our web server automatically collects IP-addresses in order to send you the requested web pages. We also use the aforementioned information to provide you with the correct version of our websites (e.g. desktop or mobile) in the most relevant language (e.g. Dutch, English, French, German, etc.). Other information is used to improve our website and the user experience.


If you choose to correspond with us through email or via our “Contact” button on our websites, we may process and retain the information you provide to us. Such information may include your name and address details, phone number, email address and the content of the (email) messages together with all responses. We store this information until we are sure that you are satisfied with our response.


Certain features of our services require you to register beforehand. You will have to provide some information about yourself and choose a password for the account that we will set up for you. For this purpose, we may process personal data, such as your first and last name, your phone number and your email address. We need this data in order to provide you with the requested services and we store this information until you close your account.

Certain (paid) features of our services require you to provide us with additional information, such as billing information and/or the name of your employer. We need this data in order to provide you with the requested services and we store this information until you close your account.


The security of your personal data is very important to us. Therefore we have implemented technical and organizational measures to protect your personal data against loss or any form of unlawful processing. Amongst others, we use the following measures: protection of our servers by firewalls, securing our connection with you by using SSL/TLS and encryption of sensitive data. For security and availability purposes we use software to monitor network traffic (IP-addresses) in order to identify unauthorized attempts to upload or change information, or otherwise cause damage.


A cookie is a very small text document, which often includes an anonymous unique identifier. When you visit our websites, our servers ask your device for permission to store a cookie on the storage location of your device (e.g. a hard-drive) that is specifically designated for cookies. The cookies stored on your device depending on your choices and browser settings. You may disable the use of cookies through your browser settings, but some parts of our websites may not work properly as a result of that.

We may use both session cookies and persistent cookies to better understand how you interact with our websites, to monitor aggregate usage by our users and web traffic routing on our websites, and to improve our websites and services.

A session cookie facilitates certain features of our websites and is deleted from your device when you disconnect from or leave our website. A persistent cookie remains stored on your device after you have closed your browser and may be used us on subsequent visits to our website. Persistent cookies help our websites to recall specific information on subsequent visits. The persistent cookies may, for example, remember country and language preferences. You are able to delete persistent cookies on your device. Please read the ‘help’ section in your web browser for more information on how to delete cookies.

You can always change or withdraw which cookies you want to accept in our Cookie Preference Center.


We may disclose your information to our third party service providers, such as hosting providers or the aforementioned third-party cookie providers, in order to assist us with providing quality services to you. Furthermore, we may disclose your information if required or permitted by law, or when we believe that disclosure is necessary to protect our rights, and/or to comply with a judicial proceeding, court order, subpoena, or other legal process served on us.


Information – you have the right to be fully informed on which of your personal data we have and what we are using it for.

Inspect – you have the right to inspect your personal data stored by us.

Correct you have the right to correct any incorrect personal data stored by us.

Deletion – you may request deletion of (outdated) personal data. As long as you maintain an account with us, we must retain certain data. If you wish to immediately delete your data, then you must cancel your account with us. Canceling your account is possibly by contacting our customer support.

Revoke consent – you have the right to revoke any consent you may have given us to process your personal data.

Object – you may object to certain uses of your personal data.


This statement is not applicable to third-party websites connected with our website or services through hyperlinks. We cannot guarantee that these third parties will handle your personal data in a secure and careful manner. We recommend you to read these websites’ privacy statements before making use of their websites. Use of these websites or services may be subjected to their terms and conditions and the processing of personal data is subject to their privacy statements.


We have the right to amend this privacy and cookie policy at any time and recommend that you consult this policy on a regular basis in order to remain informed of any changes.


We are happy to help you with any questions or complaints about our processing of your personal data. See our contact details below if you want to contact us.

You are also always entitled to file a complaint with relevant governmental authority. For The Netherlands, the relevant governmental authority is the ‘Autoriteit Persoonsgegevens’.


If you have any questions regarding this policy, the use of our websites or the use of our services, please contact us at

Ciwit B.V.

Paasheuvelweg 25

Wing 5D

1105 BP, Amsterdam

The Netherlands