A Registry stores data about linkets. A linket has data about users who use it to interact with the linket owner via an app or bot. This linket group lets members interact with each other. To help each other with advice about using the linket. The Registry can host a message board, where users of a linket can communicate with each other. The linket owner gets feedback about her interactions with the users. It is easier for her to shift from using an app in the deep link to an app made by a different firm. The user data is not held by any app firm, allowing this independence.