HAOTIAN WU

Education is the main category at about 25% of apps, while the portfolio spans 4 categories. This is a relatively diversified portfolio strategy.

Education

1 apps · 25%

Photo & Video

1 apps · 25%

Productivity

1 apps · 25%

Utilities

1 apps · 25%

• The primary category Education accounts for 25%. Long-tail categories can reduce single-category risk.
• The diversification score is about 0.75 (0=highly concentrated, 1=highly diversified), useful for comparing developers.

The public rating sample is thin, so reputation analysis should be treated as directional.

Apps

4

Total ratings

-

Free / paid

4 / 0

• By review volume, the leading apps include: "ScholarDaily: Research Briefs", "Dual Cam - Split Screen Camera", "EchoVault Voice Note Recorder".
• The visible list is free or priced at 0. Monetization may rely on subscriptions, ads, or in-app purchases; verify on the store page.

Most apps do not have enough rating data, so aggregate star ratings should be treated as directional.

• The weighted and simple averages are close, suggesting reputation is relatively balanced across apps.
• 4 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.
• Most apps have some rating base, making star ratings relatively more stable.

The earliest listed app is "Dual Cam - Split Screen Camera", while the newest or most recent listing signal is "Found: Photo Spot, Find Car". The span is a proxy for long-term iteration capacity.

Span

1 years+

• Earliest record in this dataset: 2026 (Dual Cam - Split Screen Camera).
• Newer app signal: 2026 (Found: Photo Spot, Find Car).

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 - stars vs. the leading app "ScholarDaily: Research Briefs" 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.