SpeakTwo
iOS
Real-time speech translation between two people.
SpeakTwo turns your iPhone into a shared interpreter. Set a language for each side, place the phone between you, and speak naturally — SpeakTwo transcribes and translates each turn live, powered by OpenAI's realtime translation model. Your API key stays on your device, so conversations go straight from your phone to OpenAI with no server in between.
Features
Two-way conversation
Assign a language to each person and let SpeakTwo translate back and forth in a single shared session.
Realtime translation
Audio streams directly to OpenAI's gpt-realtime-translate model, so speech is transcribed and translated as you talk.
Bring your own key
Use your own OpenAI API key. It is stored locally in the iOS Keychain and never sent to a developer-operated server.
Native SwiftUI app
A focused, native iOS interface built for quick, in-person conversations.
Local history
Conversation transcripts can be saved on your device so you can review prior sessions.
Private by design
No developer-operated backend. Your audio and key go only to OpenAI using the credentials you provide.