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Not yet checked against local search

Sign Language Learning Apps in Japan

Japan — Education, for consumers. Niche: Sign Language Learning.

Data from the week of 19 Oct 2026, refreshed every two weeks.

Our call

No call yet
#887of 18,420
this week
Strong · Top 5%

Score 55/100 · why few pass 70

We have not checked this against App Store search in Japan yet, so we won’t call it. Checks run every day, highest-scoring openings first.

At a glance

Demand
Medium, neither for nor against you
137,271 ratings
Revenue
Medium, neither for nor against you
2 top-grossing
Competition
Low, in your favour
0 established in Japan
Leading apps
Strong, against you
4.9★ average
How the score of 55 is made
55

score out of 100

  • Demand65

    137,214 ratings in the US and UK, 57 in Japan

  • Revenue36

    2 of the top 3 on a top-grossing chart in the last 30 days; 0 paid

  • Room locally100

    0 established apps in Japan (75+ ratings, scaled to the market’s size)

  • Language gap50

    Not checked in local search yet — counted as neutral (50) at most

  • Incumbent weakness0

    4.9 stars on average; 0 of 3 not updated in a year

  • AI gap30

    3 of the top 3 not built around AI

  • Momentum—

    History building since 19 Oct 2026 — counted as neutral (50) for now

Why this is an opening

The leading app in the reference market has 137214 ratings, whereas the top app in Japan has only 57 ratings. There are 0 strong local apps in this market. Additionally, 2 of the top 3 apps lack local language support.

Not yet checked against local App Store search. Checks run every day, highest-scoring openings first.

How strong the competition is

The leading apps in this niche

The niche’s apps available in Japan, ranked by their share of ratings here and in the United States and United Kingdom; stars in Japan where it has them.

AppRatings in JapanRatings US + UKStarsJapaneseLast updateAI
Lingvano - Learn Sign Language57130,2784.9NoOct 2026No AI
Toleio Norsk Tegnspråk045NoSept 2026No AI
Bright BSL - Sign LanguageNot in this store06,932—NoSept 2026AI feature

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Is demand growing

New ratings each week in Japan, added up over the leading apps. A rating count only grows, so a week’s rise is the people who rated that week.

New ratings per week, Japan
  • Last 4 weeks
  • 4 weeks before
  • Earlier
Weekly trend for members

Members see the weekly trend.

Show as a table
WeekNew ratings
Members—

What users complain about

Too few low-star reviews to group into complaints yet.

If you build it

The smallest app that answers what users complain about and what the leaders leave out. Each feature says where it comes from.

  • What apps here chargethe leading apps' in-app prices, once we have read themMembers

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What would kill this

Up to three things that would end this opening, each tied to the data.Get 30 days — €19 →

The same niche in other markets

Score by market
  • This market
  • Other markets

✓ checked against local App Store search. Other markets are named for members.

Show as a table
MarketScoreChecked against local search
Japan55Not yet
Members50Not yet
Members50Not yet
Members47Yes
Members45Not yet
Members45Not yet
Members39Yes
Members39Yes
Members35Yes
Members35Yes
Members35Yes
Members35Yes
Members35Yes
Members35Yes
Members35Yes
Members35Yes
Members35Yes
Members34Yes
Members34Yes
Members34Yes
Members34Yes
Members33Yes
Members31Yes
Members31Yes

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Scored 2026-10-26 with score version 4. How the score works. Store data only: we do not estimate revenue or downloads.