Propeller

Propeller is a product-feedback and community-conversation app built on River Protocol by the product agency LCA, launched in 2024. Membership is minted onchain as an NFT when a user joins, acting both as a verifiable early-adopter credential and as a pass into the corresponding product community.

The app has three channels: a feedback area that collects feature requests through templates and ranks them by high, medium and low priority into a votable backlog; a support area for one-to-one tickets; and a discussion channel that resembles group chat but encrypts, verifies and stores messages onchain so no operator can quietly edit them. Because feedback and identity both live onchain, teams can identify core contributors and allocate rights by holdings or reputation. River runs on untrusted nodes with end-to-end encryption, and Propeller was among the first applications shipped on it.