WhatYouSay
A traveler in a signal-dead valley, their phone fanning spoken words into translated glyphs
On-device/Voice + Text/No signal required

Translation that works in the deadzone.

Translating / on deviceEN -> ES
“Where is the station?”
ES¿Dónde está la estación?

Speech in, speech out, fully on your phone. Nothing you say ever leaves the device. Works with a weak signal. Works with none.

Download APK / v0.1.0Android 8.0+ / how to install
01

Not another offline pack bolted onto a cloud app.

A phone holding its sound waves inside its own frame, network signal crossed out
A

Nothing leaves.

Private by construction, not by privacy policy. There is no network code in the translation path. The only thing this app downloads is the models, once, on wifi, when you ask.

B

A conversation, not a search box.

Put the phone between two people. It hears who is speaking and which language, then answers in the other. Nobody taps a language picker mid-sentence.

C

Built for the dead zone.

Subways, borders, basements, back-country, seat 30A at altitude. Where every other translator goes blank, this one keeps talking.

Constructivist diagram: ear and microphone, transforming gears, mouth and speaker
02

The whole pipeline fits on the phone.

Three stages, all local. Open models running on your hardware, swappable like cartridges.

In

You speak

mic / VAD
Transcribe

Speech to text

whisper.cpp
Translate

Text to text

Hunyuan Hy-MT2 / 440MB
Speak

Text to speech

Piper
[ Missing ]Notice what is not in this diagram: a server. That is the entire point.
Need a language Hy-MT2 doesn't cover? Drop in the NLLB-200 pack for 200+. Want flagship quality? TranslateGemma with NPU acceleration. The model is disposable. The privacy is not.
A faceted globe with off-grid regions still pinned, network signal crossed out
03

One phone. Two people. No shared language.

Speaker AEN
“Can you help me find the pharmacy?”
heard / translated / spoken aloud in Portuguese
PTSpeaker B
“Claro, fica logo ali à direita.”
heard / translated / spoken aloud in English
It flips direction on its own. You just talk.

Get it. Then lose signal on purpose.

Android / 8.0+~600MB with modelsv0.1 / open sourceNo account / no trackers

Early access. Download the APK directly and sideload it, then grab the model pack once over wifi. Everything after that runs on-device, offline.

Download APK / v0.1.0Release notes / install steps