Klappa
Free FSRS flashcards that open your Anki decks
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Klappa is a free spaced repetition app for students with exams where forgetting is expensive. It opens your Anki decks with each card's schedule, reviews them on FSRS-6, and studies four ways: Flashcards, Learn, Write and Test. Included free: Cortex, a study AI that cites a curated medical library; Live, in-class quizzes students join from their phones; and an MCP connector for Claude and ChatGPT. Web and Mac (offline). No ads, no paid tier.
PH · launched Oct 29, 2026 · 2 upvotes (top 22%) · 0 views
Niche: digital flashcard apps · 73 launches, 9 in the last 7 days ▼ -10% · Explore this niche →
Category and tags
- Education
- B2C
- Not AI
- Productivity
- Education
Visit website ↗ Source listing ↗
Could you build this?
Partial The FSRS scheduler, Anki deck import, and four study modes are all standard, well-documented work a solo builder can vibe-code. Cortex, the AI tutor grounded in a curated medical library, depends on content curation and medical accuracy that code alone cannot provide.
What it would actually take: Use an open-source FSRS implementation and an .apkg parser to read Anki decks and schedules, with a web or mobile front end for the four study modes. Cortex needs a retrieval pipeline (embeddings plus a vector store) over a licensed or hand-curated medical corpus, with citations back to sources. The hard parts are obtaining and licensing the medical content and validating answer accuracy, which requires clinical or subject-matter reviewers.
Competitors
Other products that read as similar to this one : 64 launches clear the similarity bar, closest 8 shown.
Attention rank: #5 of 65 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 324 days after the earliest competitor.
- Hotaru · ph · 2026-10-28 · 1 upvotes · similarity 0.48
- Lacuna · ph · 2026-09-13 · 1 upvotes · similarity 0.48
- Cramsly · ph · 2026-10-26 · 2 upvotes · similarity 0.42
- Okiru · ph · 2026-09-15 · 2 upvotes · similarity 0.42
- StudyDaily · ph · 2026-10-06 · 2 upvotes · similarity 0.42
- RecallDeck · ph · 2026-10-08 · 2 upvotes · similarity 0.42
- Phosphor · ph · 2026-10-11 · 2 upvotes · similarity 0.42
- SmartStudy · ph · 2026-10-22 · 1 upvotes · similarity 0.41
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.