Flashcards | Spaced Repetition

Fast spaced repetition review. Four algorithms. Import from any AI. Zero tracking. Your cards, your device, your pace.

I wanted a flashcard app where I could just learn — no monthly subscription, no account sign-ups, no tracking. So I built one.

SPACED REPETITION MADE SIMPLE Grade your recall with a swipe. Cards you remember appear less often. Cards you struggle with come back sooner. The app handles the scheduling — you focus on learning.

FOUR PROVEN ALGORITHMS Choose the review engine that fits your style:

• SM-2: The classic interval scheduler used by millions of learners since 1987.
• FSRS: A modern memory-stability model that predicts optimal review timing.
• Leitner System: Progressive box-based review for straightforward study sessions.
• Forgetting Curve: Schedules reviews based on Ebbinghaus memory decay research.

IMPORT FROM ANYWHERE Bring your own cards via CSV or JSON files, or paste directly from ChatGPT, Claude, Gemini, or any AI tool. An included prompt builder helps you generate study-ready cards on any topic in seconds.

YOUR DATA, YOUR DEVICE All your decks and cards stay on your device. iCloud syncs across your devices automatically — no accounts, no sign-ups, no analytics. We collect zero data.

DESIGNED FOR OLED Pure black interface saves battery on modern iPhone displays. Thin iconography, subtle glass effects, and minimal UI keep the focus on your cards.

FEATURES

• Timed reveal: cards auto-flip after a configurable delay
• Deck management: create, import, edit, and organize decks
• Progress tracking: dual-ring visualization shows session and deck mastery
• Set mastery: hold a card to promote it — it won't return for a year
• Review history: see every card's retention, status, and schedule
• Haptic feedback: distinct feel for recalled vs. needs-review grades
• Live Activity: track progress in Dynamic Island while studying
• Widget: see deck progress at a glance on your Home Screen
• VoiceOver ready: full accessibility support
• Offline first: works without an internet connection