Every video, song, podcast, or photo becomes a lesson. Tap any word to save it with the exact moment you found it. That is how immersion sticks.
Gravity started from a simple belief: language learning should follow you into real life and feel effortless enough that your only job is learning, not building lessons, drills, and word lists that rarely match what you actually see in real life.
Our mission is to help more of the world become fluent in the language around them: not just textbook fluency, but the confidence to read the menu, follow the sign, understand the message, and feel at home in a place that once felt unfamiliar.
We're a team of polyglots and lifelong language learners who have lived abroad, moved through different cultures, and watched friends, family, and classmates run into the same wall. We hope Aio will help make that wall feel a little easier to climb.
Meet the teamMost of us have stitched together our own setup: a streak app, a dictionary, a deck, an AI chat. Here is how those stack up against doing it in one place.
| Capability |  Gravity | Duolingo | Migaku | Yomitan + Anki |
|---|---|---|---|---|
| Learn from real native content: podcasts, streams, songs | Yes | No | Partial | Partial |
| Curated library, levelled N5–N1 | Yes | No | No | No |
| Word-by-word synced transcripts, tap any word to save | Yes | No | Yes | Partial |
| The original moment stays attached to the word | Yes | No | Partial | Partial |
| One tap to create flashcards | Yes | No | Partial | Partial |
| Zero setup needed | Yes | Yes | No | No |
| Capture text from the world (photos & screenshots) | Yes | No | No | Partial |
| Spaced repetition built in | Yes | Partial | Yes | Yes |
| Made for your phone | Yes | Yes | Partial | No |
Gravity is available on iOS and Android. Download the app and start turning real Japanese into review material.
The things we hear most often, in plain language. Missing one? Email hello@learngravity.com and we'll add it.
Gravity is available on the App Store for iOS and Google Play for Android.
Gravity currently supports Japanese as the learning language.
The Media catalog includes more than 1,000 hours of native Japanese video, organised by topic and JLPT level. Moments gives you a shorter, swipeable way to learn from the same kind of real content.
The transcript follows playback word by word. Tap a Japanese word to inspect it, open its dictionary entry, get a contextual explanation, or save it for Study.
Words you choose to save appear in All words. You can practise them there, search and sort them, or organise them into your own decks. Words saved from Media keep their source context so you can return to the moment where you found them.
That’s Aio, your language friend from space. Aio guides you through setup and appears around Gravity as you learn.
