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RelayPony sends files straight from one Android phone to another, encrypted end to end with the age protocol, with no server, no cloud, and no account.

RelayPony is a free, open-source Android app that sends files directly between two phones. On the same Wi-Fi the phones find each other automatically; with no shared network they connect directly. Every transfer is end-to-end encrypted with the age protocol. There are no accounts, no servers, and no tracking. It is in closed testing on Google Play, with an iPhone version planned.

RelayPony is a free, open-source file-transfer app for Android, built by NorseHorse, a solo independent developer. It sends a file directly from one phone to another instead of routing it through a cloud service. On a shared Wi-Fi network the two phones discover each other automatically using local network discovery; when there is no common network, RelayPony establishes a direct device-to-device link and transfers over that. Every transfer is end-to-end encrypted with the age protocol (X25519 and ChaCha20-Poly1305), the same crypto core used by its sibling app AgePony, and the encrypted stream is carried over a frozen, cipher-agnostic wire protocol. Phones pair by scanning a QR code on a trust-on-first-use basis, with each device identity held in the Android Keystore. There are no accounts, no analytics, and no server of any kind. The app is open source under Apache-2.0. RelayPony is in closed testing on Google Play, with an iPhone version planned, and is part of a small family of privacy tools that also includes PGPony, AgePony, and QuorumPony.