Overview

OpenLanguage pairs a capable AI tutor with voice I/O so you can practice speaking and listening the way you actually learn a language — by using it.

The tutor adapts to your level, corrects you naturally mid-conversation, and never gets tired of your questions. Pre-made conversation topics for every level make jumping in a breeze.

• Free and Open Source: No accounts required, no subscription.
• Bring Your Own Keys: Plug in your own API key from OpenAI, Anthropic, or any compatible provider. You pick the model and pay only for what you use.
• Zero Telemetry: No analytics. No tracking. Your conversations stay on your device and between you and whichever API provider you configure.
• Voice I/O: Uses iOS's built in voice recognition and speech to text for free, on-device voice I/O.

OpenLanguage is built with Expo / React Native, using only native SwiftUI components via expo-ui.

Supported AI Providers

AI APIs currently supported:

• OpenAI / OpenAI compatible
• Anthropic
• OpenRouter
• OpenResponses
• DeepSeek
• Fireworks
• Groq
• Mistral
• Moonshot
• TogetherAI
• Zhipu AI (Z.AI)
• MiniMax

Under the hood we use ai-sdk, so extra providers are easily added.

Screenshots

Development

Pre-requisites

• macOS
• pnpm
• Xcode

Get Started

# Install dependencies
pnpm install

# Run dev server & start iOS simulator
pnpm ios

Contributing

Issues and pull requests are welcome.

License

OpenLanguage is available under the MIT License.