Your language
Translation appears here
Tap to speak
Tap again to stop · pauses may end recording
對坐iPhone SafariAdd an API key
Your language
Translation appears here
Tap to speak
Tap again to stop · pauses may end recording
SETTINGS

Start a conversation.

Use iPhone Safari for speech recognition. Your browser sends translation requests directly to OpenRouter with your own API key.

Advanced settings

This limits a provider's output token rate, not the total cost of a request. Your model may not support every effort level.

This replaces the default translation instructions and may change translation quality. Your prompt is saved in this browser and sent to OpenRouter with each request. Do not include secrets.
HOW TO USE

DuoZuo

DuoZuo is free to use. Its translation models are provided through the third-party platform OpenRouter. If you select a paid model, OpenRouter charges your account based on usage at its current prices.

Open this site in iPhone Safari over HTTPS. Allow microphone and speech recognition access when asked. Tap the microphone on your side, speak a short phrase, then tap again to stop. You can always use Type if speech recognition is unavailable.

Get an OpenRouter API key

  1. Create an OpenRouter account or sign in.
  2. Add credits on the Credits page to use paid models.
  3. On the API Keys page, create a key, optionally set a spending limit, and copy it. Never share it or include it in screenshots.
  4. If you added DuoZuo to your Home Screen, open it from its icon and paste the key into Settings there. Otherwise, use Settings in this Safari tab.

If you enable Remember, this web app saves the key in unencrypted storage on this device. Otherwise it stays in memory until the page closes. Each translation sends the key and text directly to OpenRouter; DuoZuo has no server that stores them.

Add to your iPhone Home Screen

  1. Open this site in Safari on your iPhone.
  2. Tap Share. Depending on your Safari layout, tap More first.
  3. Scroll down and tap Add to Home Screen. If it is missing, choose Edit Actions to add it.
  4. Turn on Open as Web App, then tap Add. Launch the icon from your Home Screen.

Speech recognition may vary in the Home Screen app. Safari tabs and Home Screen web apps have separate storage, so enter your key in the app you use.

Speech recognition may use Apple's service and may not work for every listed language on every device. Check important translations before relying on them.

Choose different languages

The two sides need different languages for translation. Choose another language.

Type or edit