Hear a native speaker. Type what you hear. The algorithm brings back what you missed — at exactly the interval your brain needs.
macOS · Arm64 · 100% offline · No account required
Not gamification. Not a vocabulary list. Forced reproduction of what you hear, at scale, with immediate feedback and adaptive spacing.
A native speaker sentence plays. No text shown. You listen.
Reproduce what you heard. Character-level diff shows exactly where you went wrong.
Every error is logged. Sentences come back at the interval your brain needs to consolidate them.
Over thousands of repetitions, listening discrimination and production accuracy build together.
One download. Works on a plane.
Every sentence recorded by real speakers, not TTS.
Adaptive algorithm. Errors drive scheduling, not arbitrary intervals.
English translations bundled offline. No API calls.
Track accuracy, session history, and corpus coverage over time.
No internet after download. Works anywhere.
Your data stays on your machine. Always.
Traditional SRS traps you in endless review at scale. With 26K+ sentences, pure algorithm-driven review becomes a Sisyphean task.
The fiat factor forces new exposure even when reviews are pending — 20–80% of selections bypass the scheduler entirely. Like deficit spending, we coin new exposure by fiat, prioritizing growth over perfect debt management.
25-minute sessions respect your patience. LIFO/FIFO alternation intelligently retries recent failures within the same session. Statistical immersion reproduces the effect of living in the country — via engineering, not geography.
Shareware versions are free. Same app, smaller corpus. Feel the method before committing to the full download.
Native speaker audio from Common Voice, RomTTS, and human recordings. Instant English translations bundled offline.
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