Gravity
Native Japanese media with synced transcripts, word lookup, and saved vocabulary that keeps its source context. Fits learners who want to connect listening with later review.
Good fit if
- Learners who already watch or listen to Japanese media
- People who want the original scene attached to saved vocabulary
- Phone users who want listening and review in one workflow
Look elsewhere if
- You want a free ongoing study tool
- You need a complete beginner grammar syllabus
- Saving words is crowding out actual listening
The study job
Gravity connects native Japanese media with synced transcripts, word lookup, and spaced review. Saved words keep their original context so you can return to the moment where you met them. The official site lists iOS and Android downloads.
How to evaluate it
Choose a short video on a familiar topic. Watch for the main idea, inspect one unclear sentence, and save a few expressions you understand in context. On another day, recall those expressions before replaying their source.
This is a suggested evaluation routine. We have not recorded hands-on product testing for this profile. Count expressions you can hear again rather than the size of the collection.
Limits and cost
The App Store description identifies Gravity as early access. Its iOS release notes state that access is subscription-only. A free download is not evidence of a free study plan. Confirm current terms and device requirements before paying.
A transcript helps you inspect speech. It does not replace grammar explanation, speaking feedback, or a suitable starting level.
Other paths
See Mugi for another video-to-review workflow and Kiku for short clips. If you prefer listening without building a vocabulary collection, compare the sources in the listening hub. Choose one primary listening source before adding another app.
Sources checked
Product details can change. Evidence pages and their individual check dates appear below. Profile reviewed Oct 7, 2026.
- Gravity official site official product · checked Oct 7, 2026 · Product format, learning features, founder description where present, and linked platforms.
- Gravity App Store listing official app store · checked Oct 7, 2026 · iOS product identity, current feature description, device compatibility, and paid access or in-app purchases.