See what everyone around you is saying.
Ozen listens through your phone and writes what people say in large, clear captions, as they speak. It was made for people who are deaf or hard of hearing.
Free and open source, for iPhone, iPad and Android. Works in Hebrew, English and ten more languages.
It tells you when you're called.
Type your name once. When someone says it, the phone buzzes and the line lights up, even if you looked away for a moment.
On an iPad, which can't buzz, the edge of the screen flashes instead.
It hears the house, too.
A doorbell, a smoke alarm or a siren shows up on the screen with a flash of colour, and can reach you as a notification while the phone is in your pocket.
Ozen is a helper, not a certified alarm. Keep your smoke alarms, and keep official emergency alerts turned on. Why this matters
Answer out loud.
Type what you want to say, and the phone says it for you. Phrases you use often, like "Could you say that again?", are one tap away.
While the phone talks, the captions pause, so it doesn't caption itself.
Or hand them the phone.
Big letters fill the whole screen, so the other person can write to you when talking isn't working.
Flip turns the writing upside down, so the person sitting across the table can read it.
Know who is talking.
Give a voice a name once, and what that person says shows with their name.
Press and hold any line to star it, copy it, or teach Ozen the right spelling of a word.
The sound stays on your phone.
After a one-time download, the captions are written on the phone itself, with no internet at all.
No account, no ads, no tracking. Saved conversations stay on your phone, and you choose whether they're saved at all. Sound leaves the phone only if you choose to use your own home computer or an online captioning service.
A computer at home can help.
If the family has a computer, Ozen can use it to run a bigger speech model for captions that are often more accurate.
Point the phone's camera at the code on the computer once, and it's set up. The sound goes only to your own computer, and only while captions are on.
Get Ozen
Ozen is free. It's still in early testing, so it isn't in the app stores yet.
- iPhone and iPadThe newest test build is on the releases page, and is installed from a computer. Needs iOS 17 or newer.
- AndroidOn the phone, download Ozen.apk from the same page and open it. Android asks whether to allow installing from the browser or the Files app: allow it, then tap Install. Needs Android 8 or newer, on a 64-bit phone. The first time captions start, Ozen downloads a speech model of about 574 MB, best over Wi-Fi.
- Home computerThe Windows setup is on the releases page too.