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LUMO helps you learn German vocabulary the structured way — from beginner (A1) to advanced (C1). Instead of random word lists, everything is organized by CEFR level, five words per module. Spaced repetition flashcards, real example sentences, and a dedicated Der/Die/Das studio help it actually stick. Built solo — nearly 1,900 words reviewed so far, more added weekly.
A few months ago I was trying to get past B1 German using random Anki decks and word of the day apps, and kept hitting the same wall: no structure, no clear sense of progress, and der/die/das that I'd get right one day and wrong the next.
So I built LUMO: German vocabulary organized by CEFR level (A1 to C1), five words per module, with spaced repetition flashcards, real example sentences, and a dedicated Der/Die/Das studio built specifically to make noun genders finally stick.
I built everything solo. From the content pipeline (nearly 1,900 words reviewed, more added weekly) to the grammar data to the app itself.
Would love your feedback, especially if you're learning German (or any language). What's missing, what would make this a daily habit for you? I'll be here all day answering everything! 🇩🇪
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About LUMO on Product Hunt
“Structured German vocabulary, from A1 to C1”
LUMO was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #144 on the daily leaderboard. LUMO helps you learn German vocabulary the structured way — from beginner (A1) to advanced (C1). Instead of random word lists, everything is organized by CEFR level, five words per module. Spaced repetition flashcards, real example sentences, and a dedicated Der/Die/Das studio help it actually stick. Built solo — nearly 1,900 words reviewed so far, more added weekly.
LUMO was featured in iOS (110.7k followers), Education (79.1k followers) and Languages (14.4k followers) on Product Hunt. Together, these topics include over 76.4k products, making this a competitive space to launch in.
Who hunted LUMO?
LUMO was hunted by Çağrı Terzi. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Çağrı Terzi
Hey Product Hunt! 👋🏻
I'm Çağrı, solo builder of LUMO.
A few months ago I was trying to get past B1 German using random Anki decks and word of the day apps, and kept hitting the same wall: no structure, no clear sense of progress, and der/die/das that I'd get right one day and wrong the next.
So I built LUMO: German vocabulary organized by CEFR level (A1 to C1), five words per module, with spaced repetition flashcards, real example sentences, and a dedicated Der/Die/Das studio built specifically to make noun genders finally stick.
I built everything solo. From the content pipeline (nearly 1,900 words reviewed, more added weekly) to the grammar data to the app itself.
Would love your feedback, especially if you're learning German (or any language). What's missing, what would make this a daily habit for you? I'll be here all day answering everything! 🇩🇪