TAKAHARU INOUE

Games is the main category at about 57.7% of apps, while the portfolio spans 4 categories. This is a moderately concentrated portfolio strategy.

Games

15 apps · 57.7%

Education

9 apps · 34.6%

Utilities

1 apps · 3.8%

Entertainment

1 apps · 3.8%

• The primary category Games accounts for 57.7%. Long-tail categories can reduce single-category risk.
• The diversification score is about 0.54 (0=highly concentrated, 1=highly diversified), useful for comparing developers.

The full portfolio has about 17 public ratings, a small public review base. It includes 26 free apps and 0 paid apps.

Apps

26

Total ratings

17

Free / paid

26 / 0

• By review volume, the leading apps include: "Child game / hair cut (dark blue)", "Drifting parallel parking", "Free-Pinball Game".
• The visible list is free or priced at 0. Monetization may rely on subscriptions, ads, or in-app purchases; verify on the store page.

Weighted by rating volume, the portfolio averages about 3.41 stars; the simple average is 3.33 stars. The gap shows whether high-volume apps lift or drag the overall reputation.

Weighted avg

3.41 ★

Simple avg

3.33 ★

• The weighted and simple averages are close, suggesting reputation is relatively balanced across apps.
• 14 apps have no public rating data, so long-tail performance is underrepresented.

The iTunes Search API does not provide review text. This card uses low star ratings with enough review volume as a proxy, and separately highlights apps with thin samples.

• No app triggered the low-rating plus sufficient-sample threshold.
• Thin rating samples (under 50 ratings): "Child game / Cut light blue hair", "Let's cut Kids hair", "Child game / hair cut (Yellow)". Star ratings can swing heavily until more feedback arrives.

The earliest listed app is "Drifting parallel parking", while the newest or most recent listing signal is "Silhouette Quiz for Demon Slay". The span is a proxy for long-term iteration capacity.

Span

3 years+

• Earliest record in this dataset: 2016 (Drifting parallel parking).
• Newer app signal: 2020 (Silhouette Quiz for Demon Slay).

These takeaways are based on public metadata and are useful for competitor research or portfolio planning. Deeper conclusions require downloads, revenue, and review text.

• Study the category mix: 4 categories show whether a main-category plus extension structure matches your resources.
• Compare reputation structure: weighted 3.41 stars vs. the leading app "Child game / hair cut (dark blue)" and its review volume.
• For similar tools, prioritize review mining on lower-rated apps to find functional gaps; this requires store reviews or third-party data.