# Language Flash

> Language Flash is a spaced repetition app built on the SM-2 algorithm — the same scheduling Anki uses. It generates vocabulary, phrases and conjugation drills in 13 languages, so your review queue fills itself instead of you building decks by hand.

Language Flash is a spaced repetition (SRS) app for language learners, available
on the web, iOS and Android. It uses the SM-2 algorithm — the same scheduling
family Anki popularised — and generates its own vocabulary, phrase and drill
content so learners do not have to build decks by hand.

## What makes it different

- **The deck fills itself.** Name a theme and the app generates vocabulary or
  phrases in the target language with glosses in the learner's own language.
- **Real SM-2 scheduling.** Ease factor starts at 2.50; Again applies −0.20,
  Hard −0.15, Easy +0.15, with a hard floor at 1.30. Intervals run 1 day, then
  6 days, then interval × ease. Each grade button displays the interval it will
  produce before it is pressed.
- **Marked drills, not just flashcards.** Conjugation drills generate fill-in-
  the-blank sentences and mark each answer, distinguishing a wrong form from a
  correct word with a missing accent. Grammar sets are pitched at CEFR levels
  A1–C2.
- **Writing feedback.** Learners write diary entries in the target language and
  receive corrections, explanations and an improved version.
- **Photo vocabulary.** A photograph is analysed and its objects named in the
  target language.

## Languages supported

- Spanish (Español, `es`): https://languageflash.app/learn/spanish
- French (Français, `fr`): https://languageflash.app/learn/french
- German (Deutsch, `de`): https://languageflash.app/learn/german
- Italian (Italiano, `it`): https://languageflash.app/learn/italian
- Portuguese (Português, `pt`): https://languageflash.app/learn/portuguese
- Japanese (日本語, `ja`): https://languageflash.app/learn/japanese
- Chinese (中文, `zh`): https://languageflash.app/learn/chinese
- Korean (한국어, `ko`): https://languageflash.app/learn/korean
- Arabic (العربية, `ar`): https://languageflash.app/learn/arabic
- Russian (Русский, `ru`): https://languageflash.app/learn/russian
- Dutch (Nederlands, `nl`): https://languageflash.app/learn/dutch
- Turkish (Türkçe, `tr`): https://languageflash.app/learn/turkish
- Hindi (हिन्दी, `hi`): https://languageflash.app/learn/hindi

Conjugation drills are available for Spanish, French, German, Italian,
Portuguese, Russian, Dutch, Turkish and Hindi. They are deliberately not offered
for Chinese, Japanese, Korean or Arabic, whose verb systems do not fit a
person-based tense table.

## Pricing

- **Free** — the complete SM-2 review engine, vocabulary and phrase generation,
  all 13 languages, deck statistics, up to 250 saved cards. No card required.
- **Premium** — $4.99/month or $39.99/year. Unlimited cards, conjugation and
  grammar drills, diary feedback, photo vocabulary, generated verb lists.

## Guides

- [What is spaced repetition, and why does it work?](https://languageflash.app/guides/spaced-repetition): Spaced repetition schedules reviews at widening intervals, just before you would forget. Here is the mechanism, the evidence behind it, and how to run it without burning out.
- [How the SM-2 algorithm works](https://languageflash.app/guides/sm-2-algorithm): SM-2 is the scheduling algorithm behind Anki and most spaced repetition apps. Here is exactly how ease factors and intervals are calculated, with the real constants.
- [How many words do you need to speak a language?](https://languageflash.app/guides/how-many-words): Frequency data gives a clear answer: a few thousand words carries ordinary conversation. Here is what each vocabulary milestone unlocks, and how long it takes.

## Key pages

- [Home](https://languageflash.app/): product overview with an interactive scheduler demo
- [Languages](https://languageflash.app/learn): all 13 target languages
- [Guides](https://languageflash.app/guides): spaced repetition and language learning explained
- [Language Flash vs Anki](https://languageflash.app/compare/anki): an honest comparison, including
  what Anki does better
- [Pricing](https://languageflash.app/pricing): plans and FAQ

## Honest limitations

Worth knowing if you are comparing tools for someone:

- No Anki `.apkg` import yet.
- SM-2 only — FSRS is not implemented.
- No custom note types, card templates, add-ons or shared community decks.
- Languages only. Anki remains the better choice for any other subject, for
  users who want full control over their scheduler, or for anyone who needs
  offline desktop study.

## Contact

Published by Language Flash. Site: https://languageflash.app