Read it as you hear it
The translation streams in large type the moment it's spoken, with the original speech beneath so you can check what was actually said.
Real-time speech translation for iPhone
Speak any language. Hear it in Japanese.
Boloaudio turns speech into translated voice and text while the other person is still talking. Pick one of 13 languages, tap the mic, and keep the conversation moving.
13 output languages
Pick a band. Hear the room in it.
Speak in whatever language you like. Boloaudio detects it and translates into the one you choose. Tap a band to hear and read the app's own sample conversation in that language.
In English · detected
Spanish Out
On the console
Everything you need to talk. Nothing to set up.
Sign in with Apple, choose a language, and go. There's no API key to paste in and nothing to set up.
Choose who speaks
Use the streamed OpenAI voice, or any iOS voice installed for that language. Your pick is remembered per language.
No feedback loop
Echo cancellation stops the translated audio from being picked up by the mic and translated all over again.
Tuned to the room
Set noise reduction for a phone held close, or one sitting across the table. Or switch it off.
Locks when you do
Lock your phone mid-conversation and the translation keeps running, so you can listen without watching the screen.
Signal path
From your voice to their language in one stream.
In
Mic
Your voice is captured at 24 kHz with echo cancellation switched on.
Relay
Secure connection
The app streams to a relay that holds the API key, so nothing sensitive lives on your phone.
Translate
gpt-realtime-translate
OpenAI's model detects what language you're speaking and translates as you go.
Out
Voice and text
You hear the translation and read it live, with the original transcript beneath.
Ready when you are
Turn up the conversation.
Boloaudio is built for iPhone and needs iOS 17 or later. Your first 3 translations are free. Not ready to talk yet? Tap Demo in the app to watch a sample conversation with no microphone.