However, Ello itself does gather quite a bit of data. And while it may not "sell" it to third parties, there are still circumstances under which it will share it.
If you delete your account on Ello, the site says it may still store backups of your data on its servers.
The site also uses an anonymized version of Google Analytics to gather and aggregate general information about user behavior and IP addresses.
"To the best of our knowledge, the information gathered by Google on Ello's behalf is collected in such a way that neither Ello, nor Google, can easily trace saved information back to any individual user," Ello says.