What it does well

Speak is the language learning app that actually gets you talking. Instead of gamified vocabulary drills, it uses AI to have real conversations — and gives you instant feedback on pronunciation, grammar, and fluency. Backed by OpenAI, it's the most technically advanced language tutor available.

Who it's for: Adults who want to actually speak a new language, not just memorize flashcards. Especially good for professionals learning for work.

Key features

AI Tutor Real conversation practice

Have freeform conversations with an AI tutor that adapts to your level. It corrects mistakes in real-time and adjusts difficulty as you improve. Supports English, Spanish, French, German, Japanese, Korean, and Mandarin.

Pronunciation Instant speech feedback

Speak's core differentiator: it listens to you speak and provides detailed pronunciation feedback. The AI identifies specific sounds you're struggling with and gives targeted practice. Far more effective than reading exercises.

Business Language Workplace-specific lessons

Specialized courses for professional contexts — meetings, presentations, negotiations, and emails in your target language. Popular with companies training international teams.

Progress Fluency scoring

Tracks your fluency score across pronunciation, grammar, vocabulary, and comprehension. See measurable progress week over week with detailed analytics.

The honest take

✓ What works

Best-in-class pronunciation feedback — genuinely helps you sound natural
Conversation-based learning sticks better than Duolingo's gamification
Business language courses are practical and well-designed
OpenAI partnership means the AI conversations feel natural
Works offline for practice sessions

✗ What doesn't

More expensive than Duolingo ($15/mo vs free)
Fewer languages than competitors (7 vs Duolingo's 40+)
Grammar explanations could be more detailed
No free tier — only a 7-day trial

Verdict

If your goal is to actually speak a language — not just pass a test — Speak is the best AI-powered option in 2026. The pronunciation feedback alone justifies the price. It's particularly strong for professionals learning a language for work. Duolingo is better for casual learners on a budget; Speak is better for serious learners who want results.

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