LinguaTest: Targeted Beta Testing and Feedback Marketplace for Language App Creators

I built [hablabla.com](https://hablabla.com/) because recently I spent years learning a new language from scratch and wanted to share my process and tooling with others. Only just launched, so currently just friends and family as users. It really needs more validation / feedback / testing from a wider audience of language learners, which is why for now I'm covering the AI costs while I figure out what works for people. For now I just want people using it and telling me what's broken or what is bad about it generally. The pitch: The core idea comes from a concept in the language-learning community called "sentence mining": instead of studying word lists someone else picked, you collect words and phrases only as you encounter them, then use spaced-repetition flashcards to make sure you never forget them. It works because it prioritizes exactly the words that are personally most useful to you. So how it works: You expose yourself to the language by playing through real-life scenarios with an AI character (ordering at a cafe, viewing an apartment, a doctor's visit). Everything you write gets gently corrected, shown as a diff against what a native speaker would have said. Similarly, pronunciation accuracy is measured, and you can compare what you said vs how a native speaker would say it on a per-word basis. Any word you don't know, you save with a tap. The app then auto-generates flashcards for all these words. Later, you empty your review queue. Then repeat. It runs in the browser on desktop or phone — nothing to install. Try it at [hablabla.com](https://hablabla.com/). And again, if you try it, please let me know your thoughts!

Sentence mining is the clearest part of the pitch. I would make the first 30 seconds show one phrase, the correction diff, a saved card, and the next-day recall loop; that proves the habit without asking people to trust a broad “AI tutor” promise. The insight is that the phrase came from an actual situation, not a generic word list.