GG Flash vs Lumen

THE ANKI EXPERIENCE — FREE FOR IOS — IMPORT ANY ANKI DECKS The flashcard app Anki users wish Anki was. Beautiful. iOS-native. Built on the same spaced repetition science used by med students, polyglots, and Ivy League grinders to remember 10× longer. • Import any .apkg file in seconds — your existing Anki decks just work • Browse AnkiWeb's shared library directly in the app • 200,000+ ready-made decks: languages, medicine, law, kanji, history, code SPACED REPETITION THAT ACTUALLY WORKS • Again · Hard · Good · Easy — proven scheduling • Watch your retention climb to 90%+ • Card maturity tracking: New → Learning → Young → Mature • Forget nothing. Ever. BUILT FOR THE WAY YOUR BRAIN WORKS • Audio playback, phonetics, images, example sentences • Search, filter, browse every card you own • Light, dark, system themes — beautiful at 2am • Bury siblings, daily limits, intelligent due queue STREAKS THAT MAKE STUDYING UNSKIPPABLE • 30-day progress chart, cards/day average • Personal best streak tracking • Daily goal slider — 30 cards to 500 • The streak you don't want to break WHO USES GG FLASH • Med students prepping USMLE, MCAT • Polyglots learning Japanese, Mandarin, Spanish • Law students drilling cases • Anyone tired of clunky 2007 interfaces FREE. FULLY UNLOCKED. NO SUBSCRIPTION. Every feature included. No trial, no upgrade, no catch. Built by a learner, for learners who refuse to forget. Stop cramming. Start remembering. TERMS & PRIVACY • Privacy Policy: https://ginesga.github.io/ggflash-site/privacy.html • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Lumen is a flashcard app for people who want spaced repetition to work properly and want their data to stay on their phone. Cards are scheduled with FSRS-6, the algorithm that models memory as difficulty, stability, and retrievability rather than a fixed ladder of intervals. Every rating button shows the interval it would give you before you tap it, so you can see what Again, Hard, Good, and Easy actually cost. If you want to tune the scheduler, all 21 FSRS weights and your desired retention are editable, with bounds checking so you cannot save a set that breaks scheduling. BRING THE DECKS YOU ALREADY HAVE Import from Anki .apkg files, Anki JSON, CSV and TSV, Markdown, and Lumen's own ZIP backups. Anki's rendered HTML is stripped on the way in, so you get clean card faces instead of stray markup. Imports are idempotent: re-importing a deck or overlapping HSK levels will not duplicate anything. You can export your decks at any time. BUILT FOR CHINESE, USEFUL FOR EVERYTHING The HSK importer reads the complete-hsk-vocabulary dataset and keeps every written form, numeric pinyin, radical, and frequency rank. Chinese notes render tone-colored pinyin alongside simplified and traditional forms, meanings, part of speech, HSK level, and classifiers. Each word can generate both recognition and production cards. Text-to-speech reads cards aloud, and the spoken language is set per deck. For everything else there are Basic, Basic and Reversed, and Cloze note types, Markdown formatting on card faces, nested decks at any depth, image and audio attachments, and full-text search across your collection. YOUR CARDS STAY ON YOUR DEVICE Lumen works offline and has no accounts. Your decks, notes, review history, and media live in a database on your phone, and nothing syncs to a server. Lumen reports anonymous usage and crash data so bugs get fixed, and that reporting excludes deck names, tag names, note contents, search queries, and file paths. Settings has a reset that erases everything locally. KEEPING THE HABIT A daily goal, streaks, XP, and achievements track consistency. The stats screen shows review counts, retention, daily accuracy, rating distribution, how card difficulty is trending, and a heatmap of your study activity. You can share a streak or heatmap card as an image without sharing the cards themselves. Lumen has no ads and nothing to unlock by paying.