Guillem Hernández Riera

Guillem Hernández Riera

Marketing/ADE | Lingogrind co-founder
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Guillem Hernández Rierastarted a discussion

How we’re using AI to fix the "B2/C1 Plateau" in language learning (Beta + Giveaway)

Hi everyone! 👋 After months of development, we are finally opening the Beta for Lingogrind. As a maker, I realized that most language apps focus on beginners, leaving advanced students (B2/C1) stuck repeating the same structural grammar mistakes forever. We decided to build an AI that doesn't just "teach" but acts as a pattern corrector. It identifies your specific recurring errors and helps...

Guillem Hernández Rierastarted a discussion

LINGOGRIND WAITING LIST IS HERE!!!

"Hey Product Hunt Community! 👋 We're building Lingogrind, an AI-powered German exam simulator (Goethe, TestDaF, telc). When preparing for official certification exams, we found the biggest pain point is getting real, actionable feedback on Writing and Speaking. Most language apps stop at multiple-choice quizzes, leaving serious students in the dark. Our solution? An AI engine that not only...

Guillem Hernández Rierastarted a discussion

Training Languages Like Skills — Not Like Games 🧠💬

Hey Product Hunt! 👋 Lately we’ve been talking with learners, teachers, and exam-prep students… and there’s a pain point that keeps coming up: Most language apps make you feel like you're improving, but don’t actually prepare you for real-world use. So we’ve been building something different: 🎯 One exercise = One real skill Each task trains a specific ability: speaking, listening, writing, or...

Guillem Hernández Rierastarted a discussion

🚀 We’re recruiting 10 beta testers for Lingogrind!

Hey everyone 👋 We’re looking for 10 passionate language learners to test Lingogrind, our AI-powered platform designed to help you actually master a language, not just “study” it. 💡 Why beta test? Get early access to our exam-style exercises (Speaking, Listening, Writing, Reading). Receive real AI feedback on your performance. Track your actual progress — no streaks, no gamified flames. Help...

Guillem Hernández Rierastarted a discussion

When I first joined a language academy, I realized something was off.

Out of a one-hour class, the teacher spent maybe 10 minutes with me — and the rest was just filling in exercises alone. 📝 Friends told me: “Try Duolingo or Babbel.” I did. It was fun 🎮 … but I wasn’t improving. I failed my first official exam ❌. That’s when I understood the real issue — we don’t need more learning apps, we need a system to master a language. 💪 So I built Lingogrind---> It’s...

Guillem Hernández Rierastarted a discussion

23 y/o founder choosing to build instead of wait — let’s see where it goes

Hey everyone 👋 I'm a 23-year-old marketing & business student and co-founder of Lingogrind — an AI-powered platform to learn German faster through personalized practice and real-time feedback. I'm here to build openly, connect with other makers, and show what we're creating with Lingogrind. Still early, but going all-in on shipping, learning, and improving every day. If you're building in AI,...