Gravity vs jidoujisho
Gravity
learngravity.comjidoujisho
github.comSide by side
| Figure | Gravity | jidoujisho |
|---|---|---|
| Price from | $8.99/mo | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| macOS | Yes | — |
| iOS | Yes | — |
| Android | Yes | Yes |
| Plans published | 5 | 1 |
| Spec score · Language Immersion Apps | 8.0 (#10) | 8.3 (#5) |
| Product | Gravity turns Japanese videos, music, podcasts, and captured text into personalized language-learning material. | jidoujisho is a mobile video player, reading aid, dictionary and card creation toolkit for language learners. |
| Support | The maker directs users to email [email protected] for questions and feedback. | The maker’s profile invites users to seek help through the project’s issue trackers, Discord or email. |
Plans
Gravity
- special offer$4.99, paid once
- Fluency$6.99, paid once
- Immersive Monthly$8.99 a month
- Immersion$14.99, paid once
- Polyglot$69.99, paid once
In their own words
jidoujisho
jidoujisho brings video playback, reading, dictionary lookup and flashcard creation into an Android language-learning app. It handles local media, YouTube videos, Jellyfin streams and direct URLs, with word lookup by tapping or dragging across subtitles and paragraphs. Readers can open offline books in the embedded ッツ Ebook Reader or read manga processed with Mokuro. For study cards, users can edit fields and export the current image and audio to AnkiDroid. Dictionary support covers Yomichan, Migaku and ABBYY Lingvo DSL formats; dictionary data is not bundled, and Yomichan structured-content dictionaries are unsupported. Listed services include ChatGPT, Bing image search, Forvo, JapanesePod101 audio search, and example sentences from Massif, Tatoeba and ImmersionKit. WebSocket support allows use with texthookers. Japanese and English are officially supported; other languages depend on dictionary format and search support. jidoujisho is free and open source under GPL-3.0. It requires Android 7.0 or later and AnkiDroid. External subtitles include SRT, ASS and SSA, but not image-based PGS.