叶 李

Health & Fitness is the main category at about 40.7% of apps, while the portfolio spans 6 categories. This is a relatively diversified portfolio strategy.

Health & Fitness

11 apps · 40.7%

Education

7 apps · 25.9%

Sports

3 apps · 11.1%

Music

2 apps · 7.4%

Productivity

2 apps · 7.4%

• The primary category Health & Fitness accounts for 40.7%. Long-tail categories can reduce single-category risk.
• The diversification score is about 0.74 (0=highly concentrated, 1=highly diversified), useful for comparing developers.

The full portfolio has about 18.0K public ratings, a small public review base. It includes 27 free apps and 0 paid apps.

Apps

27

Total ratings

18.0K

Free / paid

27 / 0

• By review volume, the leading apps include: "Yoga Workout-Do Yoga At Home", "WeightLoss Workout-HomeFitness", "Pilates Workouts-Home Fitness".
• 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 4.71 stars; the simple average is 4.68 stars. The gap shows whether high-volume apps lift or drag the overall reputation.

Weighted avg

4.71 ★

Simple avg

4.68 ★

• The weighted and simple averages are close, suggesting reputation is relatively balanced across apps.
• 1 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): "腹肌撕裂者-腹部肌肉锻炼", "马甲线教程-女士减肥瘦身减脂", "Chinese Lessons-Learn Mandarin". Star ratings can swing heavily until more feedback arrives.

The earliest listed app is "韩语学习-轻松学韩语视频教程", while the newest or most recent listing signal is "Saxophone Master - Sax Lessons". The span is a proxy for long-term iteration capacity.

Span

9 years+

• Earliest record in this dataset: 2016 (韩语学习-轻松学韩语视频教程).
• Newer app signal: 2025 (Saxophone Master - Sax Lessons).

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: 6 categories show whether a main-category plus extension structure matches your resources.
• Compare reputation structure: weighted 4.71 stars vs. the leading app "Yoga Workout-Do Yoga At Home" 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.