Companion

Companion is not for everyone. It's for learners who value control and customization over convenience. You'll need to set up Python, get API keys for OpenAI and Google, and potentially use a cloud service like GitHub Codespaces for mobile access. That's a barrier for casual learners, but a feature for developers who want to tweak prompts or integrate with other tools. In practice, the combination of ChatGPT for conversation, Whisper for speech recognition, and Google TTS for pronunciation feedback is potent. It adapts to your errors, shows translations side-by-side, and lets you practice at your own pace. Compared to Duolingo's gamified structure, Companion feels more like a real tutor—it responds naturally, corrects mistakes in context, and never pushes ads or subscriptions. But it lacks a curriculum, progress tracking, and community features. For serious learners who already know grammar basics and need conversation practice, Companion is a solid supplement. We'd reach for it when Duolingo's exercises feel too shallow or when we want to practice speaking without judgment. Its open-source nature also means you can audit the code, add features, or contribute back. Just budget for API costs—voice-heavy sessions can add up quickly. If you're not comfortable with command lines or managing API keys, this isn't for you. But if you're technically inclined and want a powerful, private tutor, Companion is worth the setup effort.