Comsend Secret is end-to-end encrypted chat with no phone number and no account. Your keys are made on your phone and never leave it. Person to person, not even we can read what you send — that is the design, not a promise.
Comsend Secret is our research bench.
It is where White Rabbit works on exotic and next-generation cryptography in the open — and where that work will ship first, on an app that carries no legal or client data, so the experiments never touch anything that matters. What's in your hands today is the proven core; what's coming is on the roadmap below, labelled honestly. Free, because it is our proving ground, and because privacy should not be a paywall. We build it to stand up to the people who fear anonymity the most — and we test it like they are already trying.
True end-to-end encryption — ECDH P-256 key agreement, AES-256-GCM. No phone number, no email, no account: your identity is a key pair born on your device. Add people by QR or a short code and verify with a safety number. Encrypted photos, audio and video. The relay that carries your messages only ever holds ciphertext, and deletes it on delivery.
Every message goes out under a fresh throwaway key — the relay is never told who sent it, because the message simply doesn't say. Like a radio that hops frequency on every word. (What the network itself can see is a different fight — that's the metadata-isolation work on our roadmap, and we won't pretend it's done.)
The cipher engine itself is server-pushable and governance-signed: we can strengthen or rotate the encryption for everyone without waiting on an app-store update — and every update carries a signature the app checks before it will run. A moving target by design, with the keys to the target held to account.
We tell you what is built and what is not. We would rather under-promise than lie to you about your safety.
Comsend Secret includes an assistant, Alice, you can chat to. Alice is the only conversation that is not end-to-end encrypted — we decrypt it to answer, and the app tells you so every time. Everything person-to-person stays unreadable to us. Alice runs on our own hardware in Australia.
The direct APK is for sideloading — you may need to allow Install unknown apps for your browser. Android 6+.
APK SHA-256: 84288a0adbfc6cb3bb3ed3d5b3364ba9abe3521b12af6c3e61a8c6625d4849a2
Three apps, each with an honest trust model of its own.
A sovereign phone line for lawyers — voice, SMS and video over infrastructure we own outright. Coming to Google Play once review clears.
Awaiting Google review