Mobile Fax App Opportunity in Japan
Japan — Business, for consumers. Niche: Mobile Fax.
Data from the week of 19 Oct 2026, refreshed every two weeks.
Our call
out of 100
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
- High, in your favour
- 227,221 ratings
- Revenue
- Medium, neither for nor against you
- 3 top-grossing
- Competition
- Medium, neither for nor against you
- 4 established in Japan
- Leading apps
- Fair, neither for nor against you
- 4.1★ average
How the score of 59 is made
score out of 100
- Demand78
226,157 ratings in the US and UK, 1,064 in Japan
- Revenue47
3 of the top 6 on a top-grossing chart in the last 30 days; 1 paid
- Room locally52
4 established apps in Japan (16+ ratings, scaled to the market’s size)
- Language gap26
Not checked in local search yet — counted as neutral (50) at most
- Incumbent weakness65
4.1 stars on average; 3 of 6 not updated in a year; includes a review signal (members)
- AI gap30
6 of the top 6 not built around AI
- Momentum—
History building since 19 Oct 2026 — counted as neutral (50) for now
Why this is an opening
Local incumbents in Japan show clear signs of weakness, with 50 percent of top apps classified as stale. Furthermore, 51 percent of analyzed user feedback reflects low star ratings, pointing to dissatisfaction with existing options.
What people in Japan see
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.
| App | Ratings in Japan | Ratings US + UK | Stars | Japanese | Last update | AI |
|---|---|---|---|---|---|---|
| FaxFree: Send Fax From iPhone | 428 | 174,828 | 3.9 | Yes | Oct 2026 | No AI |
| Fax from iPhone: Free of ad | 375 | 29,498 | 4.5 | No | Sept 2026 | No AI |
| FAX from iPhone & iPad App | 241 | 13,841 | 3.9 | Yes | Mar 2024 | No AI |
See all competitors, complaint themes and history.Get 30 days — €19 →
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.
- Last 4 weeks
- 4 weeks before
- Earlier
Members see the weekly trend.
Show as a table
| Week | New ratings |
|---|---|
| Members | — |
How the leading apps make money
4 of 5 leading apps sell in-app purchases, priced ¥400 to ¥14,000. Prices as the App Store lists them in this market; most bought first.
See what each leading app sells and at what price.Get 30 days — €19 →
What users complain about
- Charged upfront during free trial23 reviews
Show as a table
| Complaint | Reviews |
|---|---|
| Charged upfront during free trial | 23 |
See every complaint and the reviews behind them.Get 30 days — €19 →
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
See what is here.Get 30 days — €19 →
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
- This market
- Other markets
✓ checked against local App Store search. Other markets are named for members.
Show as a table
| Market | Score | Checked against local search |
|---|---|---|
| Members | 62 | Not yet |
| Members | 60 | Not yet |
| Members | 60 | Not yet |
| Members | 59 | Yes |
| Japan | 59 | Not yet |
| Members | 57 | Not yet |
| Members | 57 | Not yet |
| Members | 57 | Not yet |
| Members | 57 | Not yet |
| Members | 57 | Not yet |
| Members | 57 | Not yet |
| Members | 56 | Not yet |
| Members | 56 | Not yet |
| Members | 55 | Not yet |
| Members | 55 | Not yet |
| Members | 54 | Not yet |
| Members | 54 | Not yet |
| Members | 54 | Not yet |
| Members | 54 | Not yet |
| Members | 53 | Not yet |
| Members | 53 | Not yet |
| Members | 52 | Yes |
| Members | 50 | Yes |
| Members | 35 | Yes |
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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.