Lang.IN
Apps taught you to tap. Time to learn to talk.
Write, speak, translate — AI checks your grammar, style, and context in real time.
1-day free trial — no credit card required
How does it work?
See the app in action.
Build your vocabulary word by word
Translate individual words, hear pronunciation, and answer by voice or text. AI scores each attempt instantly.
Translate full sentences with AI feedback
Go beyond single words. AI checks grammar, style, and context — then explains your mistakes.
Have real conversations with AI
Practice natural dialogue. AI plays the other side, scores each turn, and keeps the conversation going.
Simple and honest
Start for free, upgrade when you're ready.
- Unlimited practice sessions
- Three learning modes: words, sentences, dialogues
- Speech recognition
- Text-to-speech pronunciation
- Spaced repetition algorithm (SM-2)
- Learning history and statistics
- Levels A1–C2, 15+ topics
- PWA app — install on your phone
No credit card required
- Unlimited practice sessions
- Three learning modes: words, sentences, dialogues
- Speech recognition
- Text-to-speech pronunciation
- Spaced repetition algorithm (SM-2)
- Learning history and statistics
- Levels A1–C2, 15+ topics
- PWA app — install on your phone
Frequently asked questions
Everything you need to know before getting started.
Is there a free trial?
Yes! You get 1 day of full access for free, no credit card required. After that, you can continue for 19 PLN/mo.
What level should I choose?
Start with the level you feel comfortable at. The AI adapts difficulty automatically — you can change your level at any time.
What languages can I learn?
We currently support 6 languages: Polish, English, Spanish, German, Italian, and French. You can practice translations in any direction.
Do I need a microphone?
No — you can type your answers. A microphone is optional, but it lets you practice pronunciation and natural speech.
Can I use it on my phone?
Yes! Lang.IN works as a PWA app — you can install it on your phone directly from the browser, just like a native app.
Can I cancel anytime?
Absolutely. No commitments — cancel with one click in your account settings.
Ready to actually speak a new language?
Join Lang.IN and start today.