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Checked against local search

3D Anatomy Atlas in Japan

Japan — Medical, for consumers. Niche: 3D Anatomy Atlas.

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

Our call

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#4,862of 18,817
this week

Score 44/100 · why few pass 70

  • For: 2 of the 3 established apps in local search don’t support Japanese.

See the other 2 reasons, what would have to be true and the build plan.

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At a glance

Demand
High, in your favour
46,782 ratings here · 36,131 in the US and UK
Revenue
Medium, neither for nor against you
5 top-grossing
Competition
High, against you
3 established in local search
Leading apps
Strong, against you
4.8★ average
How the score of 44 is made
44

score out of 100

  • Demand83

    36,131 ratings in the US and UK, 46,782 in Japan

  • Revenue54

    5 of the top 10 on a top-grossing chart in the last 30 days; 2 paid

  • Room locally25

    3 established in Japan search (500+ ratings); 3 in the niche

  • Language gap5

    2 of the 3 established apps in Japan search don’t support Japanese

  • Incumbent weakness12

    4.8 stars on average; 3 of 10 not updated in a year; includes a review signal (members)

  • AI gap30

    10 of the top 10 not built around AI

  • Momentum—

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

Why this is an opening

2 of the top search results do not ship in the local language. Japan shows strong demand with 46720 ratings for the top local app. 3 established search results currently exist in this market.

3 of the 19 apps in the top 10 of these searches have an established following in Japan (500+ ratings). All of them are rated 4.0 or higher and were updated in the past year.

Where each app ranks, by search term
  • Ships Japanese
  • No Japanese

Shaded: an established following here. Showing 3 apps by name; members see all 10 ranks.

Show as a table
Rank“3d anatomy”“解剖図”“解剖学 3d”
1解剖学 - 3Dアトラス (1,351 ratings)解剖学 - 3Dアトラス (1,351 ratings)解剖学 - 3Dアトラス (1,351 ratings)
23D Anatomy (5 ratings)筋肉系3D(解剖学) (113 ratings)Members
3MembersMembersMembers
4MembersMembersMembers
5MembersMembersMembers
6MembersMembersMembers
7MembersMembersMembers
8MembersMembersMembers
9MembersMembersMembers
10MembersMembersMembers

How strong the competition is

Ratings in Japan against stars
  • Ships the local language
  • Does not
  • No update in a year
2.03.04.05.0101001K10KRatings in Japan (log scale) →Used, but under 4★解剖学 - 3Dアトラス: 1,351 ratings, 4.3 stars, not in the local language3D Anatomy: 5 ratings, 3.6 stars, not in the local languageMembers see this appMembers see this appMembers see this appMembers see this appMembers see this appMembers see this appMembers see this appMembers see this app筋肉系3D(解剖学): 113 ratings, 3.7 starsMembers see this appMembers see this appMembers see this appMembers see this appMembers see this appMembers see this appMembers see this appMembers see this app解剖学筋肉系3D(解剖学)3D Anatomy

The shaded box is empty: no app here has 500+ ratings and under 4 stars.

Show as a table
AppRatings in JapanStarsLocal languageLast update
Members————
解剖学 - 3Dアトラス1,3514.3NoIn the past year
Members————
Members————
Members————
筋肉系3D(解剖学)1133.7YesIn the past year
Members————
Members————
Members————
Members————
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Members————
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Members————
3D Anatomy53.6NoIn the past year
Members————
Members————
Members————

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
Human Anatomy Atlas 202744,43222,0054.8YesOct 2026No AI
Anatomy 3D Atlas1,3513,2914.3NoSept 2026No AI
Complete Anatomy for iPhone923,9944.4NoOct 2026No AI

MembersSee all competitors, complaint themes and history.

What users complain about

Reviews per complaint
  • App crashes and technical glitches4 reviews
Show as a table
ComplaintReviews
App crashes and technical glitches4

MembersSee every complaint and the reviews behind them.

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.

  • App Store keywords in Japanesethe terms searched and which app tops eachMembers
  • What apps here chargethe leading apps' in-app prices, once we have read themMembers

What would kill this

MembersUp to three things that would end this opening, each tied to the data.

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
Members57Yes
Members55Yes
Members55Yes
Members55Yes
Members54Yes
Members54Yes
Members52Yes
Members51Not yet
Members51Yes
Members50Yes
Members50Yes
Members50Not yet
Members49Yes
Members48Yes
Members47Yes
Members47Yes
Members46Yes
Members46Yes
Members46Yes
Members45Yes
Members45Yes
Japan44Yes
Members35Yes
Members32Yes

Every competitor, complaint and market, and the build plan, for every opening.

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Scored 2026-10-27 with score version 5. How the score works. Store data only: we do not estimate revenue or downloads.