Unroll.me head 'heartbroken' that users found out it sells their inbox data

Email service developed a side business after it was acquired by Slice in 2014 - selling aggregated data about users to apps they were unsubscribing from

The chief executive of email unsubscription service Unroll.me has said he is "heartbroken" that users felt betrayed by the fact that his company monetises the contents of their inbox by selling their data to companies such as Uber.

Founded in 2011, the free web service allows users to unsubscribe en masse from mailing lists, newsletters and other email annoyances. To do so, it requires access to the users' inboxes, and permission from them to scan the data for unsubscribe links.