Wei Zhang

Publishing behaviour

The catalogue’s attention is unevenly distributed. The single most-rated app holds 34% of the 57.7K ratings observed across 15 loaded listings, and the top three hold 91%. That is a portfolio led by a small flagship set rather than an even bench.

Roughly 3 apps account for about 90% of the observed ratings; the rest form a long, light tail. Both the largest cluster of apps and the bulk of the ratings sit in Education — a focused publisher rather than a diversified one.

Portfolio

Spread across 1 category. Bar length shows each category’s share of observed ratings; the app count beside it exposes where volume and audience diverge.

Observations

• 01

  The portfolio holds 15 apps across 1 category, with Education the largest cluster.

• 02

  Ratings concentrate hard: the top app alone is 34% of observed ratings, and about 3 apps cover 90%.

• 03

  Median app rating across the set is 4.80, ranging 3.92–4.94 over the 15 rated listings on this page.