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Study anywhere.

A focused language-learning app with durable offline study, forward and reverse review, SM-2 and FSRS scheduling, synchronization and permanent audio.

QUESTION

The cat sat on the mat

Кот сидел на коврике
AgainHardGoodEasy

Offline by default

Create decks, edit cards and review without a connection. Durable sync resumes later.

Built for languages

Basic, reversed and sentence cards, tags, search and device speech preview.

Your schedule

Choose SM-2 or FSRS. Every review is idempotent and safely reconciled across devices.

Three clients, one account

Kotlin and Jetpack Compose on Android; Flutter on Windows 10 and 11 and in the browser.

VERSION 1.0.4

Get the app

Free, no ads, one account on every device. The installed apps keep their study database until you uninstall them; the browser version keeps it in site data, so clearing your browser erases it — treat it as a companion rather than your main device.

What's new in 1.0.4

  • Separate play buttons for the word and the whole sentence, right beside the text.
  • Reverse review voices the side you are looking at and shows the sentence translation.
  • Word translations on sentence cards, plus per-word statistics.
  • A setting to hide sentence definitions during review (hidden by default).
  • Regenerate a card’s audio straight from review.
SHA-256 checksums
fc-nikgob-1.0.4.apk
08ea34c107e68bacff6bbf2e3bb9a8311a959cf3582f5570e623ffb121534161
fc-nikgob-windows-1.0.0.zip
5cc0cf25a536763b3b5d04732818d222c96ce500ae762b7edf7f8b0ea2dfac44

Compare with certutil -hashfile <file> SHA256 on Windows or sha256sum <file> elsewhere.