Flash Weaver — Flashcard App for Language Learning & Spaced Repetition
Flash Weaver is a flashcard language learning app powered by real memory science. Use it for vocabulary building, IELTS, TOEFL, JLPT, HSK, TOPIK, and DELE preparation — or to study any language at your own pace. Each card returns on the exact day your brain needs it — not too soon, not too late.
TWO SPACED REPETITION ALGORITHMS
Most apps give you one scheduling method. Flash Weaver gives you two:
SM-2 — The classic spaced repetition algorithm behind decades of language learning research:
• Rate each card: Again · Hard · Good · Easy
• Your rating directly schedules the next review date
• Trusted by language learning students for over 30 years
FSRS — Next-generation spaced repetition for deeper retention:
• Models your personal forgetting curve for every word
• Fewer reviews, stronger long-term vocabulary memory
• The most accurate algorithm available in any flashcard app today
Switch between SM-2 and FSRS at any time.
5 STUDY MODES
• Classic Flashcard Mode — See front, recall answer, flip, self-rate
• Reverse Mode — Work from definition to term — builds real language production
• Quiz Mode — Multiple-choice from your deck — perfect for language learning exams
• Writing Mode — Type answer before flipping — motor memory boosts retention
• Listening Mode — TTS audio only — identify the card without seeing the word
10 LEARNING LANGUAGES — MONOLINGUAL CONTENT
Expert decks written entirely in the target language. Learning vocabulary in context — without translations — is the fastest path to fluency in any language learning programme.
English · French · German · Spanish · Italian · Portuguese · Korean · Japanese · Arabic · Chinese
Exam kits: IELTS, TOEFL, DELF, Goethe, TOPIK, JLPT, HSK, DELE, CILS, CELPE-Bras.
Thematic decks: academic writing, business, travel, social, everyday vocabulary.
Community decks: browse, preview, and clone any public deck from the language learning library.
CREATE YOUR OWN FLASHCARD DECKS — PREMIUM
• Build cards from scratch: front text, back text, example sentence, image, audio
• Import files: CSV, JSON, APKG (Anki-compatible), COLPKG
• Cloud sync — never lose a card or language learning streak across devices
PROGRESS & MOTIVATION
• Study streak tracker with daily reminders at the time you set
• Cards learned, accuracy rate, and next review date for every word
• Global leaderboard — compare language learning progress worldwide
• Badges for consistency and language learning milestones
FREE FLASHCARD TIER
• Study 15 cards per day in this vocabulary and language learning app
• Optional rewarded ad to earn +5 cards — up to twice daily
• Preview first 20 cards of any expert language learning deck
PREMIUM LANGUAGE LEARNING SUBSCRIPTION
• Unlimited daily cards and full expert library
• Custom flashcard decks with images
• Import CSV, JSON, APKG, and COLPKG files
• Ad-free experience with detailed learning statistics
• Subscriptions may auto-renew; cancel anytime via Google Play
Privacy: https://www.xibalbasoftware.com/privacy/
Terms: https://www.xibalbasoftware.com/terms/
Support: info@xibalbasoftware.com
Xibalba Software — Open your first flashcard deck and start your language learning journey today.
Vocabulary & flashcard app. Spaced repetition (SM-2 & FSRS), 5 modes, 10 langs.