RelayPony
get notified
In closed testing on Google Play

Files, straight
from phone to phone.

RelayPony sends a file directly from one Android phone to another over your Wi-Fi, encrypted the whole way. No server. No cloud. No account. Nothing left behind.

Get on the list See how it works
age end-to-end encryption Android now · iOS planned Apache-2.0 open source
YOUR PHONE THEIR PHONE age · encrypted

No middle hop. The file goes device to device.

// get early access

Join the closed test, or wait for launch.

RelayPony is in closed testing on Google Play. Hop on the tester list to try it now, or just get a single heads-up the day it goes public.

One developer reads these. No newsletter, no sharing your address, no tracking. Closed-test invites go out through Google Play.

Android closed testing

The Android build is feature-complete and hardened. It is going to Google Play for closed testing now. Join the list above to get a tester invite.

iOS planned

An iPhone version is planned. It is further out than Android. Pick iOS above and we will let you know when there is something to try.

// how it works

Two phones. One QR scan. Done.

No setup, no accounts, no uploading and re-downloading. The file moves directly between the devices.

01

Pick your files

Choose files in RelayPony, or share into it from any other app's share sheet.

02

Pair by QR

Point one phone at the other's RelayPony QR code. They recognize each other from then on.

03

Send over Wi-Fi

The file streams straight across your Wi-Fi, encrypted with age. No shared Wi-Fi? It links the phones directly.

04

It lands

The file shows up in the other phone's Inbox and can auto-save to Downloads.

// what's inside

Built to move files, not collect them.

Every choice points the same way: your files stay yours, and they never touch anyone else's computer.

True peer-to-peer

The file goes directly from one phone to the other. No server sees it, no cloud stores a copy.

End-to-end encrypted

The age protocol encrypts the transfer between the two devices, the same crypto core as AgePony.

Finds devices for you

On the same Wi-Fi, nearby phones appear automatically through local network discovery.

No shared Wi-Fi? Still works

When there is no common network, RelayPony connects the two phones directly.

Share from anywhere

Send straight from RelayPony, or share into it from any other app you already use.

Open source

Apache-2.0, with a frozen, cipher-agnostic wire protocol. Read it, audit it, build on it.

// security

What stays on your phone, stays on your phone.

RelayPony is built so there is nothing to leak. There is no server holding your files and no account tying them to you.

  • No server in the path. Files move device to device, never through a machine we run.
  • age encryption end to end. X25519 and ChaCha20-Poly1305, pinned to reference behavior.
  • Keystore-backed identity. Each device's identity lives in the Android Keystore, with trust on first use.
  • Honest permissions. Camera for QR scanning, nearby-Wi-Fi for discovery, storage only to save to Downloads.
  • No accounts, no telemetry. Nothing to sign into, nothing phoning home.
  • Open to inspection. The whole thing is public under Apache-2.0.
Read the full security page
// questions

Frequently asked.

Is RelayPony available yet?
The Android app is in closed testing on Google Play right now. You can join the closed test or ask to be notified the day it goes public using the form on this page. iOS is planned but further off.
How does RelayPony send files without a server?
The two phones talk to each other directly. On the same Wi-Fi they find each other with local network discovery, and the file streams straight across, encrypted the whole way. When there is no shared Wi-Fi, RelayPony falls back to a direct device-to-device link. Nothing is uploaded to a server or the cloud.
What encryption does it use?
The age protocol: X25519 key agreement and ChaCha20-Poly1305 streaming encryption. It is the same crypto core used by AgePony, its sister app. The transfer is end to end encrypted between the two devices.
Do I need an account?
No. There is no sign-up, no login, and no profile. You pair two phones by scanning a QR code, and that is it.
What does pairing actually do?
Scanning the other phone's QR code exchanges device identities on a trust-on-first-use basis. Each device keeps its identity in the Android Keystore, so a paired device stays recognized for later transfers.
Is it open source?
Yes, under Apache-2.0. The crypto and transport modules are public, and the wire protocol is frozen and cipher-agnostic by design. You can read the code on GitHub.
Where do received files go?
They arrive in an Inbox inside the app, and can auto-save to your Downloads folder if you turn that on.

Be there when it ships.

Join the Android closed test now, or get one email the day RelayPony goes public.

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