Early access · iOS & Android

Finally, Japanese learning that sticks.

Capture words anywhere - by camera, voice and text - Tomodekki builds the card and serves it up to you at just the right intervals for retention.

Check your inbox to confirm. While you're here - four quick questions so we start you in the right place.

Where are you now?
What will you test on?
Used a flashcard app before? Pick any
What are you learning for? Pick any

Thank you - that's everything. Confirm the email we just sent and you're on the list.

One email when your invite is ready.

FSRS-6 schedulingFurigana, romaji & pitch on every word30 special interest packs

eki

de

tomodachi

to

machiawase

shimasu

“I’m meeting a friend at the station.” Furigana, romaji, pitch accent and audio on every word

What's inside

A real course. Then everything else you care about.

There's a proper curriculum in here, built in and ordered properly. What's unusual is what you can pile on top of it - the topics you actually care about, and whatever you walked past today.

Take the tour

Six screens. Go ahead and tap them.

Every phone below works. Run a review, capture a sentence, add a pack, switch to night mode - it's the app, minus the install.

Special interest packs

You choose where your Japanese goes.

The core course keeps you climbing. The thirty interest packs decide the direction - anime, the office, the izakaya, the move to Tokyo. Pick the worlds you care about and their words join the same schedule, so the Japanese you learn is the Japanese you'll actually use.

Set your direction

The science

Outstanding flashcards with Free Spaced Repetition (FSRS) learning.

Flashcards - a word on the front, rich information on the back. Simple, but fifty years of research into when the card should be shown to you.

61% vs 40%

Testing, not reading

Recalling a word beats reviewing it

Students who studied a passage and then practised recalling it remembered 61% of it a week later. Students who reread the same passage the same number of times remembered 40% - while feeling more confident they'd remember it.

Roediger & Karpicke, “Test-Enhanced Learning”, Psychological Science 17(3), 2006

13 vs 26 sessions

Spacing, not cramming

Longer gaps, half the sessions

Over nine years, learners drilled 300 foreign-language word pairs on different schedules. Thirteen sessions spaced 56 days apart matched twenty-six sessions spaced 14 days apart - the same recall years later, for half the work.

Bahrick, Bahrick, Bahrick & Bahrick, “Maintenance of Foreign Language Vocabulary and the Spacing Effect”, Psychological Science 4(5), 1993

~350M reviews

A modern scheduler

Finding your gaps, not the average one

Tomodekki schedules with FSRS, which fits a memory model to your own answers. Benchmarked against roughly 350 million real reviews across about 10,000 collections, it predicts recall better than the classic SM-2 algorithm for the overwhelming majority of them.

Open Spaced Repetition benchmark, 2024–2026. FSRS has been Anki's default scheduler since v23.10.

Anatomy of a card

One card, top to bottom.

A single capture becomes all of this - meanings, pitch, the parts the kanji is built from, sentences, and the words either side of it. Assembled once, then yours. Hover or tap any part.

Questions you're about to ask

When can I actually use it?

Early access runs in batches - TestFlight on iPhone and iPad, Google Play testing on Android - starting with the people on this list. The public App Store and Google Play releases follow once the first cohort has been through it.

Which phones does it run on?

iPhone, iPad and Android. Pick your device when you sign up and your invite will arrive for the right store.

Do I need to know any Japanese to start?

None at all. The first pack is the kana, taught from zero, and a short placement check puts you at the right rung if you're further along.

What is FSRS?

The Free Spaced Repetition Scheduler - the memory model Anki adopted as its default. Rather than multiplying your last interval by a fudge factor, it tracks how stable each word is for you and how hard you find it, then picks the day your recall would otherwise fall below your target. We didn't invent it; we run FSRS-6 and add one rule on top - a word only earns a longer gap once you've actually produced it, typed or spoken.

What happens to my email address?

It goes in our own database, it's used to send you an invite, and that's it. No list-selling, no newsletter you didn't ask for. Reply to any message and we'll delete it.

Tomo is looking for a first cohort.

A few hundred testers, from “I know three kana” to “I'm halfway through a novel”. Beginners especially - that's the part that's hardest to get right.

Check your inbox to confirm. Two quick questions while you're here.

Where are you now?
What will you test on?

Thank you - that's everything. Confirm the email we just sent and you're on the list.

One email when your invite is ready.