The following are in development and cannot be obtained yet; details may still change. Write to us naming the product if you would like to know when it will be available, or to take part in testing.
SpeechLab
In developmentiPad app · iPadOS 17.0 or laterA speech analysis app for students and language teachers.
Recording and playback, waveform, wide- and narrow-band spectrograms, and interval labelling, all on the iPad. Analysis runs entirely on device; no audio leaves it.
Specifications and support →Gotan (English)（go-tan）
In developmentiPhone app · iOSNot a word list — an engine that optimises the order of vocabulary acquisition and review intervals (English edition).
Presentation order is set by marginal coverage gain over a target corpus, and mastery is tracked separately for each facet of knowledge: meaning recall, spelling production, listening, and usage.
Gotan Korean
In developmentiPhone app · iOS 18.0 or laterA Korean vocabulary app that builds on Sino-Korean words as a foothold.
Sixty to seventy percent of Korean vocabulary is Sino-Korean and maps regularly onto Japanese readings. The app builds that correspondence into its estimate of learning cost, distinguishing words that give a foothold, words whose meaning has drifted, and words with no Japanese counterpart. Mastery is tracked separately for meaning recall, spelling and listening.
Specifications and support →Han-bun
In developmentiPhone app · iOS 18.0 or laterSentence-production practice in Korean, one sentence at a time.
849 sentences at TOPIK levels 1–4, ordered so that one grammar point is added at a time. Switch between producing Korean from a Japanese prompt and listening to Korean for meaning.
Specifications and support →One Sentence at a Time
In developmentiPhone app · iOS 18.0 or laterSentence-production practice in English, one sentence at a time.
929 sentences at CEFR A1–B1, ordered so that one grammar point is added at a time. Tap a word for its headword, part of speech, phonetic transcription, translation and an example.
Specifications and support →Korean Pronunciation Diagnostics
In developmentiPhone app · iOSPronunciation diagnostics targeted at the Korean phonological processes Japanese speakers stumble over.
Built around coda deletion, confusion among lax, aspirated and tense stops, vowel contrasts (ㅓ/ㅗ, ㅡ/ㅜ), and connected-speech processes such as lateralisation.