Hey Product Hunt 👋🏻 I’m the solo builder behind Sonus, and honestly the origin story is pretty simple. I wanted to learn Mandarin. I didn’t want to pay $150 a year to do it. So I spent four weeks building my own app instead. What started as a personal project turned into something I figured other people might actually want to use too. So here we are. What it does right now: ∙ Mandarin vocabulary structured around HSK bands ∙ Japanese branch (still being built out) ∙ Three modes per lesson — Learn, Quiz, and Speak ∙ Completely free, no paywall, no subscription Honest caveat: The HSK content isn’t fully complete yet. I’d rather ship early and build based on real feedback than spend months perfecting something nobody asked for. If you’re learning Mandarin or Japanese, or you’ve ever been frustrated paying for language apps, I’d genuinely love to know what you think. Good, bad, brutally honest. All welcome. Demo and walkthrough are live for new/demo accounts. Thanks for checking it out 🎊

Sonus

Learn Mandarin for free

Learn Mandarin for free