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Spotify and Photo Collage remained at the top of Mobile Publisher Trust Indexes; Candy Crush games crush into the top 3

Piotr Boiwka
Dec 30, 2021 10:30:00 AM

The status quo was maintained in the mobile Publisher Trust Indexes in North America in November 2021. Spotify remained at the top of the Google Play Store ranking, while Photo Collage led the Apple App Store classification for the second consecutive month. 

After dethroning MyRadar in October, Spotify remained at the top of Google Play Store ranking of the best quality apps for advertisers. Spotify achieved it by a versatile and robust performance across all measured metrics, including the highest possible result of 99 in the Permission Score category. It is the only app from the top 20 of Google Play Store ranking, reaching this mark. What’s worth noting, Spotify also took the third position in the Apple App Store ranking.

Also, in the Apple Publisher Trust Index, the leader remained the same as in the previous month. Photo Collage achieved that by excelling across all metrics and obtaining the highest mark (“A”) in all categories. The app also indicated low risk in all Description Brand Safety metrics.

King’s games with a strong performance across both mobile rankings

Mobile games from the Candy Crush series marked their presence incisively. Candy Crush Soda Saga and Candy Crush Saga reached the second and third positions in the Google Play Store classification. Both apps obtained the highest possible score of 99 in the Brand Safety and Viewability categories. Candy Crush Soda Saga also was the runner-up in the Apple App Store ranking.

See All Rankings


The content of this blog, and the Publisher Trust Indexes (collectively, the “Indexes”), reflect Pixalate’s opinions with respect to factors that Pixalate believes may be useful to the digital media industry. The Indexes examine programmatic advertising activity on mobile apps and Connected TV (CTV) apps (collectively, the “apps”). As cited in the Indexes and referenced in the Indexes’ key findings reproduced herein, the ratings and rankings in the Indexes are based on a number of metrics (e.g., “Brand Safety”) and Pixalate’s opinions regarding the relative performance of each app publisher with respect to the metrics. The data is derived from buy-side, predominantly open auction, programmatic advertising transactions, as measured by Pixalate. The Indexes examine global advertising activity across North America, EMEA, APAC, and LATAM, respectively, as well as programmatic advertising activity within discrete app categories. Any insights shared are grounded in Pixalate’s proprietary technology and analytics, which Pixalate is continuously evaluating and updating. Any references to outside sources in the Indexes and herein should not be construed as endorsements. Pixalate’s opinions are just that, opinions, which means that they are neither facts nor guarantees; and neither this press release nor the Indexes are intended to impugn the standing or reputation of any person, entity or app.

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