Methods for identifying and obtaining a suitable application for interacting with a selected content item by providing secure access to a limited portion of information on the selected content item are provided. In one aspect, a method includes receiving a selection from a user in an initial application running on a device to interact with a content item accessible by the initial application, and generating a hash value from the limited portion of information on the content item. The method further includes requesting a copy of the at least one suitable application when the comparison of the hash value for the content item with the hash value for the suitable application match, executing the suitable application on the device, and providing the limited portion of information on the content item to the suitable application for interaction by the user. Systems and machine-readable media are also provided.