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About & Licences

Open data disclosures, third-party source attributions, and educational fair use notices.

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Third-Party Data Sources

JMdict / EDICT & JMnedict / ENAMDICT

Provider: Electronic Dictionary Research and Development Group (EDRDG)

Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)

This application uses the JMdict/EDICT and JMnedict/ENAMDICT dictionary files. These files are the property of the Electronic Dictionary Research and Development Group, and are used in conformance with the Group's licence.

Distribution Channel: Word sidebar definitions in the SRS playerLocally seeded dictionary tables (jmdict_* namespace)Locally seeded name dictionary tables (jmnedict_* namespace)Override reading suggestions in the creator review modal

Modification Notice:

Loaded from the English-only JMdict_e edition and from the JMnedict names file into database tables that keep each file's entry, kanji-form, reading and sense or translation structure. Tag codes and name types are stored exactly as published, with each file's own code definitions kept alongside each release; no forms, readings, definitions, translations or annotations are edited or omitted.

Scope & Licensing Boundary:

The dictionary data is licensed CC BY-SA 4.0; that licence governs the data, and its share-alike term is described in the licence text.

Project Homepage (opens in new tab) Licensor Terms (opens in new tab) Official Licence URL (opens in new tab) View Full Licence Text

JPDB Frequency Dataset

Provider: jpdb.io (Curated by community Yomitan exports)

No licence declared upstream

Word frequency rankings and corpus occurrence counts are derived from jpdb.io community statistical distributions. We acknowledge the analysis conducted by the jpdb.io project and community contributors.

Distribution Channel: Vocabulary frequency rankings and Top-500 level badges

Modification Notice:

Parsed with Kagome to derive reading and part of speech; duplicate forms dropped; ranks stored per word form.

Scope & Licensing Boundary:

Interim frequency source; the app is designed to load and swap frequency lists (#571), at which point this entry is replaced by the active list's recorded licence.

Project Homepage (opens in new tab) Licensor Terms (opens in new tab) Official Licence URL (opens in new tab)

mecab-ipadic (Japanese Morphological Dictionary)

Provider: Nara Institute of Science and Technology (NAIST) / ICOT

NAIST / ICOT mecab-ipadic Terms

Japanese morphological analysis incorporates the mecab-ipadic 2.7.0 dictionary in accordance with the NAIST and ICOT notices.

Distribution Channel: Sub-word tokenization and vocabulary segmentation

Modification Notice:

Unmodified; compiled into the application by the Kagome tokenizer.

Scope & Licensing Boundary:

Redistribution requires the NAIST/ICOT disclaimer and NO WARRANTY section to remain attached to the program.

Project Homepage (opens in new tab) Official Licence URL (opens in new tab) View Full Licence Text

Educational Media Snippets & Context Frames

Provider: Various Japanese Broadcast & Animation Producers

Fair Use for Education (17 U.S.C. § 107)

Short audio clips (2–3 seconds) and static thumbnail poster frames are utilized exclusively for non-substitutional language acquisition, auditory training, and contextual comprehension.

Distribution Channel: Micro-audio flashcards and study context frames

Modification Notice:

Audio clips are precision-trimmed to single sentence dialogues for flashcard study. Video context is displayed via official YouTube embed APIs where available, with media slicing confined to minimal pedagogical units.

Scope & Licensing Boundary:

All original creative works remain the property of their respective copyright holders. Use is transformative and strictly pedagogical under 17 U.S.C. § 107. Rightholders may direct inquiries or takedown requests to dmca@lingeti.com.

Project Homepage (opens in new tab) Official Licence URL (opens in new tab)
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Fair Use for Educational Media

The Sazae-San Method uses short, isolated audio clips (2–3 seconds in length) and static thumbnail video frames strictly for Japanese language acquisition and spaced repetition study. This usage is transformative and non-substitutional under the Fair Use doctrine of United States copyright law (17 U.S.C. § 107).

  • Transformative Purpose: Media streams are dissected into atomic study units for phoneme acquisition and grammatical decoding rather than entertainment.
  • Minimal Extraction: Flashcard reviews use minimal micro-clips strictly bounded to a single sentence dialogue (less than 0.5% of full works).
  • Non-Substitutional: Micro-clips interspersed with spaced repetition questions do not substitute for watching full narrative episodes on licensed streaming platforms.
  • Creator Attribution & Views: When available, long-form Context Watch uses official YouTube IFrame player embeds, directing engagement and metrics to creators.

Rightholder Inquiries & DMCA Requests:

We respect the intellectual property of content creators. If you believe any material exceeds the bounds of educational Fair Use, please review our DMCA & Copyright Policy or contact our registered agent for prompt review:

dmca@lingeti.com

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