The Ratings Oligopoly

Out of 305,806 publishers in the dataset, the top 100 alone account for 1,279,947,278 of the 2,909,792,429 total ratings, roughly a 44% share. That's a smaller crowd than you'd find in most local business associations, yet it controls nearly half of everything users have rated on the platform. A handful of publishers make the apps people open every single day: banking, social, ride-hailing, streaming. That kind of daily use racks up rating volume in a way a niche utility or a one-off game just can't touch. This number reshapes what "the App Store" actually means in statistical terms. When it comes to rating volume, the App Store behaves less like 305,806 competing voices and more like a market run by 100 firms, with a long, quiet tail trailing off behind them. Any analysis of average ratings, review strategy, or platform health that ignores this concentration is studying the wrong population.

Of the 305,806 publishers in this study, 222,523 of them, 72.8% of the entire base, put out exactly one app. Together those single-app publishers pulled in 511,817,668 ratings, just 17.6% of the 2,909,792,429 total. That gap between how many publishers there are and how many ratings they actually rack up tells you something plain: the App Store's publisher population is crowded at the bottom but the real payoff sits at the top. Most publishers ship a single product and never build the kind of repeated, sustained engagement that drives rating volume at scale. That's not a knock on them, though. Plenty of single-app products are perfectly viable businesses in their own right. It just means the median publisher's rating footprint looks tiny next to the top100_share figure above. So if you're benchmarking your app against "the market," you're not really up against some average publisher. You're up against a distribution where nearly three-quarters of your peers are also single-app shops with modest volume, while the real volume lives somewhere else entirely.

There's a pretty steady slide in average rating as portfolios grow: 4.3 for publishers with just one app, 4.1 for those running 2-5, 4.0 for 6-20, and 3.9 for 21-100, before it climbs back up to 4.0 at 100+ apps. Going from 4.3 to 3.9 might not sound like much, but on a 5-point scale that's meant to capture how people actually feel about an app, four tenths of a point is a meaningful gap. Dilution seems like the obvious culprit here. A publisher with a single app can throw everything it has at that one product. Once you're juggling 21 to 100 apps, though, attention gets split across builds, support tickets, and updates, and quality control tends to slip somewhere in the shuffle. The bump back up to 4.0 at the 100+ tier is worth pausing on. It hints that once a publisher hits Google or Meta scale, it's usually built the engineering and support infrastructure needed to keep quality steady even across a sprawling catalog. So the shakiest zone for ratings isn't at the very top, it's stuck somewhere in the middle.

Among publishers with 5+ apps, Beijing Douyin Technology Co., Ltd. tops the ratings-per-app list with 6,308,209.7. 深圳市脸萌科技有限公司 comes in next at 4,302,769.6, and Uber Technologies, Inc. isn't far behind at 3,733,149.9. Meta Platforms follows at 2,650,095.9, then Wells Fargo at 2,141,906.6 and TikTok Ltd. at 1,946,491.1. Further down you'll find Shenzhen Tencent Tianyou Technology Ltd (1,819,626.5), Lyft (1,491,670.9), Google (1,445,157.7), Southwest Airlines (1,428,957.2), Capital One (1,412,945.9), and Walmart (1,178,882.1). Look at the pattern here: short-video platforms, ride-hailing services, and the banking and travel apps people open out of sheer habit. Game studios with sprawling catalogs never crack the top of this list. The reason comes down to how often people open the app. Something you check several times a day, whether it's your bank balance or your ride status, racks up far more rating prompts than a game you play once and forget about. Seeing a bank (Wells Fargo, Capital One) and an airline (Southwest) sitting alongside TikTok and Uber tells you exactly what this metric measures: how wedged into daily routine an app has become, not how big the publisher's app catalog is.

Line up every publisher by app count and you get a steep pyramid, not a smooth curve. 222,523 of them ship exactly 1 app, which works out to 72.8% of the 305,806 total. 55,979 ship 2-5 apps (18.3%), 20,637 ship 6-20 apps (6.7%), 6,555 ship 21-100 apps (2.1%), and just 112 ship 100+ apps, under 0.1% of the whole group. Climb one rung of that ladder and you lose somewhere between three-quarters and nine-tenths of the publishers who were standing on the rung below. That's a textbook power-law drop-off, and it says something plain: growing a portfolio is rare and genuinely hard. Most publishers never get past a handful of apps, let alone anywhere near double or triple digits. Those 112 publishers running 100+ apps barely register as a headcount, but other cuts in this study show they soak up a share of ratings volume way out of proportion to how few of them there are. Publishing at scale is the exception here, not the norm, and that one exception is basically what drives the market's economics.

Add up the top 12 publishers by total ratings and you land on a combined pool of 528,407,212. Google is way out in front with 98,270,723, good for 18.6% of that whole pool. Beijing Douyin Technology Co., Ltd. comes next at 63,082,097 (11.9%), with Shenzhen Tencent Tianyou Technology Ltd right on its heels at 61,867,300 (11.7%). After that the numbers step down noticeably: Apple at 42,783,114 (8.1%), Meta Platforms at 42,401,535 (8%), Spotify at 41,478,021 (7.8%), Instagram at 31,573,287 (6%), AMZN Mobile LLC at 31,530,112 (6%), 深圳市脸萌科技有限公司 at 30,119,387 (5.7%), Uber at 29,865,199 (5.7%), Voodoo at 29,217,268 (5.5%), and QIYI at 26,219,169 (5%). Just look at the gap between Google's 18.6% and the pair sitting near 11.9% and 11.7%, and it's clear that even within this group of twelve, position still counts for a lot. Landing on this list doesn't put every publisher on equal footing. It's easy to talk about "top publisher" rankings as if everyone inside them carries the same weight, but here Google's share runs close to double what its nearest rivals in the same bracket manage.

By portfolio size, 2-5 app publishers generate 953,175,017 ratings, 32.8% of the 2,909,792,429 total, the single largest share of any bucket. 6-20 app publishers follow with 749,469,691 (25.8%), then 21-100 apps with 619,801,613 (21.3%), then 1-app publishers with 511,817,668 (17.6%). The 100+ app bucket, despite housing giants like Google and Meta, contributes just 75,528,440 ratings, only 2.6% of the total. That is the counterintuitive finding of this whole study: the biggest portfolios by app count are not where the bulk of rating volume lives. Mid-size publishers running a handful to a few dozen apps collectively out-produce the mega-portfolios because there are simply more of them (55,979 plus 20,637 plus 6,555 publishers) generating steady volume across a broader base of products, while the 112 giant portfolios, however dominant individually, are too few in number to out-total that combined middle tier. The lesson for anyone reading concentration numbers at face value: publisher-level dominance (top100_share) and portfolio-size dominance are two different stories, and this cut is where they diverge.