Translation. This is an English translation for your convenience. The Danish version applies; if the two differ, the Danish version prevails.

Delete your data

Last updated: 8 October 2026

You can always ask to have your data in Callster deleted. This also applies to data we have received from Facebook, Messenger, Instagram, Telegram and Google. You do not need to log in.

How to request deletion

Send an email to kontakt@callster.dk with the subject "Slet mine data" (Delete my data).
Tell us who you are: the business's name or the email address the account was created with. If you write to Callster on Messenger, also give the name on your Facebook profile so that we can find the right connection.
We confirm that we have received your request and write to you when the deletion has been completed.

If you are a customer, you can also remove connected systems yourself under Settings (Indstillinger) in the console at app.callster.dk. The access and the keys are deleted immediately.

If you have called a business that uses Callster, the business is the data controller. You can write to the business, or to us, and we will make sure the business is informed.

What is deleted

Account: name, email address, telephone number, company details and settings.
Messenger, Instagram and Facebook: your page-scoped ID and the messages you have sent to and received from Callster. We do not retrieve your Facebook profile and therefore have no other information from Facebook.
Telegram and SMS: your Telegram ID or telephone number as an owner channel, and the messages.
Google and Microsoft: the access token to your calendar, your email and your sheets. You can also revoke the access yourself at myaccount.google.com/permissions. Appointments that are already in your own calendar stay there.
Other systems: stored sessions and keys. We never store your passwords.
Conversations: calls, summaries, enquiries, appointments and knowledge about your business.
The demo: the conversation with the demo, which our voice provider otherwise deletes after 30 days. We do not store what you wrote.
Waiting list: your email address and your business's name.

Information we are required to keep under the Danish Bookkeeping Act (bogføringsloven), e.g. invoices, is kept for 5 years and not used for anything else. Backups are overwritten within 30 days.

How long it takes

We delete your data no later than 30 days after receiving your request, and usually much sooner. Connections and keys to your systems are deleted immediately. If we cannot confirm that the request comes from you, we will ask first.

Who is the data controller

Callster I/S, a Danish general partnership (interessentskab) founded and owned by Max-Emil Sverker Sørensen and Mikkel Sten Gersel. CVR no. 46808266, Jægerstræde 8, 2690 Karlslunde. Email: kontakt@callster.dk.

Read more in our privacy policy. You can lodge a complaint with the Danish Data Protection Agency (Datatilsynet), datatilsynet.dk.