One Deal Per Day is a discount discovery service that helps subscribers find offers from across the internet. Its dedicated team of deal hunters manually searches a wide range of sectors and sends selected offers directly to members by email. The deals may cover health, leisure, personal finance, insurance, real estate, travel and home decoration, among other areas.

Subscribers can provide profile details to receive a more personalised selection of discounts and information, such as birthday offers or invitations to nearby events. The service also describes options for receiving marketing offers by post or promotional messages by SMS. Email is the only required contact detail, and members can unsubscribe at any time.

One Deal Per Day presents its service as a way to save time while keeping up with new discounts. Its registration process includes terms and conditions and a data protection policy, with information about cookies and the use of personal data. The site identifies Kontiki Media as the contact for questions about data processing and privacy rights.