Anna Koynova

Utilities is the main category at about 66.7% of apps, while the portfolio spans 4 categories. This is a moderately concentrated portfolio strategy.

Utilities

8 apps · 66.7%

Medical

2 apps · 16.7%

Health & Fitness

1 apps · 8.3%

Photo & Video

1 apps · 8.3%

• The primary category Utilities accounts for 66.7%. Long-tail categories can reduce single-category risk.
• The diversification score is about 0.51 (0=highly concentrated, 1=highly diversified), useful for comparing developers.

The full portfolio has about 4.1K public ratings, a small public review base. It includes 3 free apps and 9 paid apps.

Apps

12

Total ratings

4.1K

Free / paid

3 / 9

• By review volume, the leading apps include: "Sleep Sounds: relaxing sounds", "dB meter - noise measure", "Ruler - tape measure length".
• Paid apps represent a larger share, making download conversion and reputation more important.

Weighted by rating volume, the portfolio averages about 4.53 stars; the simple average is 3.97 stars. The gap shows whether high-volume apps lift or drag the overall reputation.

Weighted avg

4.53 ★

Simple avg

3.97 ★

• The weighted and simple averages differ meaningfully, indicating that high-review apps strongly shape perception.
• 0 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): "Nature lite", "SpeedUp - Acceleration test 0-100 kmh 0-60 mph", "Timecode Gen". Star ratings can swing heavily until more feedback arrives.

The earliest listed app is "SpeedUp - Acceleration test 0-100 kmh 0-60 mph", while the newest or most recent listing signal is "Timecode Gen". The span is a proxy for long-term iteration capacity.

Span

9 years+

• Earliest record in this dataset: 2015 (SpeedUp - Acceleration test 0-100 kmh 0-60 mph).
• Newer app signal: 2024 (Timecode Gen).

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 4.53 stars vs. the leading app "Sleep Sounds: relaxing sounds" 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.