Proceed with caution
Pinterest is a visual search engine and social networking platform that allows users to sort and store information in collections called pinboards.
Social Networking

In-depth breakdown

Minimum Age Requirement
Messaging Capabillities
Pinterest allows private messaging between users.
Location Sharing
No public location sharing.
Parental Controls
None, though Apple and Android parental controls can be used at the device level.
Some visual content available on Pinterest may be considered inappropriate by parents. Pinterest attempts to restrict external linking to broken, inappropriate, or unsafe third-party websites; however, this is not 100% effective.