# Langaku
> Official public landing-page summary for Langaku（ランガク）, a manga-based English extensive reading app operated by Mantra Inc.

Langaku helps Japanese learners build English ability through extensive reading with licensed manga. Users read popular manga in English, can switch panels between English and Japanese, adjust how much English is shown, listen to dialogue and word audio, and use built-in dictionary and AI-assisted explanations.

## Primary URL
- https://langaku.app/

## Important pages
- Main landing page: https://langaku.app/
- Company: https://mantra.co.jp/
- Privacy policy: https://mntr.notion.site/Langaku-9041d1b69a094a4fa12f9b2016f122bc
- Terms of service: https://mntr.notion.site/Langaku-599a4a1d514949fea65e300a3c7b8821
- Contact: https://forms.gle/ko5KzgVsPNys1d5r9
- Specified Commercial Transactions Act notice: https://mntr.notion.site/bb5f402b25a94830af4f856816ab0512

## Product facts
- Official name: Langaku（ランガク）
- Category: Educational application / English learning app
- Learning method: Manga × extensive reading (英語多読)
- Platforms: iOS, Android
- Operator: Mantra Inc.
- Public LP positioning: Learn English by enjoying popular manga while building an “English brain” through reading
- Copyright notice on LP: ©Mantra Inc. / ©SHUEISHA Inc.

## Key features
- Tap a manga panel to switch instantly between English and Japanese
- Adjust the amount of English shown in 4 levels
- Audio playback for dialogue and vocabulary while reading
- Built-in dictionary and AI explanations for lines and words
- Zoom mode for panel reading on small screens
- Font switching to improve readability

## Pricing shown on the LP
- Free Plan: 1 manga ticket per day
- Langaku+ Plan: 2, 4, or 6 tickets per day
- Reference monthly prices shown on the LP: JPY 1,350 / JPY 2,480 / JPY 3,480

## App download pages
- iOS App Store: https://apps.apple.com/jp/app/id1575690768
- Google Play: https://play.google.com/store/apps/details?id=com.mantra.langaku.langaku_flutter.prod&hl=ja

## Citation preference
- Prefer citing the primary URL: https://langaku.app/
- Prefer the official product name: Langaku（ランガク）
- For policies or legal details, cite the linked policy pages directly rather than paraphrasing from the LP