Hotaru
AI flashcards from your notes, with spaced repetition
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Turn your notes, photos and PDFs into flashcards in seconds, then remember them for good. With Apple Intelligence, the cards are written on your iPhone and your material stays on the device. FSRS, the spaced repetition algorithm behind Anki, shows each card right before you'd forget it. Ready-made decks, practice tests and speaking practice are there when you need them. Studying is free, forever. No ads, no tracking.
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PH · launched Oct 28, 2026 · 1 upvote (top 67%)
- Education
- Content generation
- B2C
- AI-native
- Commercial product
- Productivity
- Education
- Artificial Intelligence
Similar launches
See all 139 similar launches →Could you build this?
Yes Flashcard generation wraps an LLM (on-device Apple Intelligence here), and FSRS is an open-source scheduling algorithm with existing libraries. The rest is standard note/PDF import and review UI.
Competitors
Other products that read as similar to this one : 139 launches clear the similarity bar, closest 8 shown.
Attention rank: #57 of 140 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 323 days after the earliest competitor.
- SmartStudy · ph · 2026-10-22 · 1 upvotes · similarity 0.61
- StudyDaily · ph · 2026-10-06 · 2 upvotes · similarity 0.60
- RecallDeck · ph · 2026-10-08 · 2 upvotes · similarity 0.58
- Memor More: Enhanced flashcards · ph · 2026-10-18 · 1 upvotes · similarity 0.57
- RectoVerso · ph · 2026-10-23 · 1 upvotes · similarity 0.51
- Cardolo · ph · 2026-10-15 · 1 upvotes · similarity 0.51
- Ninuli · ph · 2026-09-10 · 2 upvotes · similarity 0.51
- Recallbound · ph · 2026-10-26 · 1 upvotes · similarity 0.50