--- title: Top 10 Apps on Apple App Store for Advertising in North America, April 2021 description: In this blog, you will find insights about the top 10 Apple App Store apps with the highest overall ad quality in April 2021 for North America. image: https://www.pixalate.com/hubfs/Blog_Media/Blog%20photos/Top%2010%20Apple%20App%20Store%20North%20America%20April%202021%20PTI.png --- [![pixalate-full-logo](https://www.pixalate.com/hs-fs/hubfs/Pixalate_Logos/pixalate-full-logo.jpg?width=150&height=60&name=pixalate-full-logo.jpg "pixalate-full-logo")](https://www.pixalate.com) Search **Menu** ** ** ![](https://www.pixalate.com/hubfs/Blog_Media/Blog%20photos/pixalate-blog-bg.png) [Mobile](https://www.pixalate.com/blog/topic/mobile) | [Rankings](https://www.pixalate.com/blog/topic/rankings) | 2 min read # Top 10 Apps on Apple App Store for Advertising in North America, April 2021 Written by [Pixalate](https://www.pixalate.com/blog/author/pixalate) Jun 4, 2021 9:30:00 AM The [Pixalate Publisher Trust Index](https://info.pixalate.com/global-publisher-trust-index) is the ad industry’s first quality ranking system for mobile and Connected TV (CTV) apps. In this blog, you will find insights about the top 10 Apple App Store mobile apps with the highest overall quality for programmatic advertisers in April 2021 for North America. Quality is determined based on Pixalate’s analysis of a variety of metrics, including ad fraud, popularity, brand safety, and more. Learn about our methodology [here](https://info.pixalate.com/publisher-trust-index-methodology) and [create a free account](https://account.pixalate.com/signup) to see the full Pixalate Top 100™ [rankings.](https://ratings.pixalate.com/rankings/app/publisher-trust-index) [![Create Free Account & See The Rankings](https://no-cache.hubspot.com/cta/default/2364596/b5834aeb-9fa2-42f8-ba91-558c2fd5bbb6.png)](https://cta-redirect.hubspot.com/cta/redirect/2364596/b5834aeb-9fa2-42f8-ba91-558c2fd5bbb6) ## **Top 10 Apple App Store mobile apps for programmatic advertising in April 2021, North America** Pixalate rated over 125,000 apps available in the Apple App Store in metrics including invalid traffic (IVT), brand safety, popularity, viewability, and more. Here are the top 10 performers in North America, from April 2021: ![Top 10 Apple App Store North America April 2021](https://www.pixalate.com/hs-fs/hubfs/Blog_Media/Blog%20photos/Top%2010%20Apple%20App%20Store%20North%20America%20April%202021.png?width=624&name=Top%2010%20Apple%20App%20Store%20North%20America%20April%202021.png) [Weather - The Weather Channel](https://ratings.pixalate.com/insight/apps/295646461/NA/ios/smartphone) gained the first spot in the Pixalate Top 100™ for Apple Apps Store in North America by excellent performance in all measured metrics. However, all the top 10 obtained high scores in all categories and competition for the top position was close. All apps from the top 10 achieved a score higher than 80 in all [measured metrics](https://info.pixalate.com/publisher-trust-index-methodology). Moreover, they all obtained the highest possible score (99) in the brand safety metric. ## **The full Pixalate Top 100™ ranking helps advertisers find quality iOS apps** In addition to the apps in the top 10 with the highest overall quality, there are other high-quality apps that can be found a bit further down in the top 100 rankings. For example, there are 10 apps outside the top 10 that achieved a score higher than 80 in all measured categories. For example, [Angry Birds 2](https://ratings.pixalate.com/insight/apps/880047117/NA/ios/smartphone) achieved an "A" grade in all metrics, as did [InShot - Video Editor](https://ratings.pixalate.com/insight/apps/997362197/NA/ios/smartphone). **About Pixalate’s Publisher Trust Index** Pixalate’s Publisher Trust Index is a global approach to quality measurement and monthly rankings of the world’s mobile and Connected TV (CTV) apps, designed to bring unprecedented transparency to the programmatic advertising ecosystem.  While traditional ranking systems use a quantitative-based approach, Pixalate uses proprietary algorithms to measure a range of quality metrics, including brand safety, invalid traffic (IVT, or ad fraud), programmatic reach, viewability, and [more](https://info.pixalate.com/publisher-trust-index-methodology). The [Pixalate Top 100™](https://info.pixalate.com/global-publisher-trust-index) rankings span 35+ different app categories, including IAB 2.2 taxonomies, across four regions: North America, EMEA, APAC, and LATAM. [![Create Free Account & See The Rankings](https://no-cache.hubspot.com/cta/default/2364596/b5834aeb-9fa2-42f8-ba91-558c2fd5bbb6.png)](https://cta-redirect.hubspot.com/cta/redirect/2364596/b5834aeb-9fa2-42f8-ba91-558c2fd5bbb6) ## **Disclaimer** *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.* ### Search Blog Search ### Follow Pixalate ### Subscribe to our blog *By entering your email address and clicking Subscribe, you are agreeing to our [Terms of Use ](https://www.pixalate.com/terms)and [Privacy Policy.](https://www.pixalate.com/privacypolicy) Previous Story [← Top 10 Apps on Google Play Store for Advertising in North America, April 2021](https://www.pixalate.com/blog/top-10-apps-google-play-store-april-2021-north-america) [** ](https://www.pixalate.com/blog) Next Story [Pixalate Week in Review: June 1 - 4, 2021 →](https://www.pixalate.com/blog/programmatic-ad-fraud-news-june-4-2021) ## You May Also Like These Stories on Mobile [![](https://www.pixalate.com/hubfs/Blog%20Media/2026%20Covers%20and%20Images/OpenEPG%20landing%20page%20hero%20image.png) ](https://www.pixalate.com/blog/pixalate-launches-openepg-1.0-analytics-to-bring-linear-tv-grade-measurement-verification-to-open-programmatic-ctv) [Mobile](https://www.pixalate.com/blog/topic/mobile) ### [Pixalate Launches OpenEPG™ 1.0 Analytics to Bring Linear TV-Grade Measurement & Verification to Open Programmatic CTV; OpenEPG DB™ Unlocks 12,875 Shows From 318 Channels Using Bidstream Bundle ID](https://www.pixalate.com/blog/pixalate-launches-openepg-1.0-analytics-to-bring-linear-tv-grade-measurement-verification-to-open-programmatic-ctv) Jun 16, 2026 8:33:30 AM | 5 min read [![](https://www.pixalate.com/hubfs/Blog%20Media/2026%20Covers%20and%20Images/United%20States%20%26%20GLOBAL%20-%20IVT%20Benchmarks%20-%20Q1%202026.png) ](https://www.pixalate.com/blog/q1-2026-ad-fraud-benchmarks-report-for-north-america) [Mobile](https://www.pixalate.com/blog/topic/mobile) ### [Pixalate Releases Q1 2026 North America Invalid Traffic (IVT) & Ad Fraud Benchmarks: United States Mobile Apps See 32% Invalid Traffic (IVT) Rate](https://www.pixalate.com/blog/q1-2026-ad-fraud-benchmarks-report-for-north-america) Apr 29, 2026 8:00:01 AM | 2 min read [![](https://www.pixalate.com/hubfs/Blog%20Media/2026%20Covers%20and%20Images/UNITED%20KINGDOM%20%26%20GERMANY%20%26%20GLOBAL%20-%20IVT%20Benchmarks%20-%20Q1%202026.png) ](https://www.pixalate.com/blog/q1-2026-ad-fraud-benchmarks-report-for-emea) [Mobile](https://www.pixalate.com/blog/topic/mobile) ### [Pixalate Releases Q1 2026 EMEA Invalid Traffic (IVT) & Ad Fraud Benchmarks: United Kingdom Connected TV (CTV) Most at Risk with 46% IVT Rate](https://www.pixalate.com/blog/q1-2026-ad-fraud-benchmarks-report-for-emea) Apr 29, 2026 8:00:00 AM | 2 min read ** ### Subscribe to our blog *By entering your email address and clicking Subscribe, you are agreeing to our [Terms of Use ](https://www.pixalate.com/terms)and [Privacy Policy.](https://www.pixalate.com/privacypolicy) ![pixalate-logo-red-small](https://www.pixalate.com/hs-fs/hubfs/2018NewTemplate/pixalate-logo-red-small.png?width=208&name=pixalate-logo-red-small.png "pixalate-logo-red-small") ** By entering your email address and clicking Subscribe, you are agreeing to our [Terms of Use](https://www.pixalate.com/terms) and [Privacy Policy](https://www.pixalate.com/privacypolicy) Products [Analytics](https://www.pixalate.com/products/analytics) [Blocking](https://www.pixalate.com/products/blocking) [Media Rating Terminal](https://www.pixalate.com/products/mrt) [Publisher Trust Indexes](https://www.pixalate.com/rankings/?group=app&reportId=publisherTrustIndex) [Seller Trust Indexes](https://www.pixalate.com/rankings/?group=app&reportId=publisherTrustIndex) [IoT Device Rankings](https://www.pixalate.com/rankings/?group=app&reportId=iotDeviceReach) Resources [Blog](https://blog.pixalate.com/) [Press](https://www.pixalate.com/press) [Careers](https://www.pixalate.com/jobs) [Team](https://info.pixalate.com/pixalate-leadership-team) Contact Email [** sales@pixalate.com ](mailto:sales@pixalate.com) [** privacy@pixalate.com ](mailto:privacy@pixalate.com) US: [** +1 888 749 2528 ](tel:+1%20888%20749%202528) EU: [** +44 (0)800 011 2050 ](tel:+44%20(0)800%20011%202050) Slack: [Join ATSAPI Slack Channel ](https://atsapi-pixalate.slack.com/join/shared_invite/zt-10dtow5cj-OEtlNr5yzJkrZMQUqcEEow#/shared-invite/email) Offices Global Offices US 1775 Greensboro Station Place, Suite 425, McLean, VA 22102 UK 20 North Audley Street London, W1K 6WE, United Kingdom EU 10 Earlsfort Terrace Dublin 2, D02 T380, Ireland Singapore 10 Anson Road, #22-02 International Plaza, Singapore 079903 [![facebook](https://www.pixalate.com/hubfs/footer/icons/facebook.png) ](https://www.facebook.com/pixalate) [![x](https://www.pixalate.com/hubfs/footer/icons/twitter-x.png) ](https://twitter.com/pixalateinc) [![linkedin](https://www.pixalate.com/hubfs/footer/icons/linkedin.png) ](https://www.linkedin.com/company/pixalate) ![wechat](https://www.pixalate.com/hubfs/footer/icons/wechat.png) [![slack](https://www.pixalate.com/hubfs/footer/icons/slack.png) ](https://atsapi-pixalate.slack.com/join/shared_invite/zt-10dtow5cj-OEtlNr5yzJkrZMQUqcEEow#/shared-invite/email) [Terms of Use](https://www.pixalate.com/terms) [Privacy Policy](https://www.pixalate.com/privacypolicy) [GDPR Compliance](https://www.pixalate.com/gdpr) Disclaimer Copyright © 2025 Pixalate [Back to top **](https://www.pixalate.com/blog/top-10-apps-apple-app-store-april-2021-north-america#) # Disclaimer Disclaimer: The content of this page reflects Pixalate’s opinions with respect to the factors that Pixalate believes can be useful to the digital media industry. Any proprietary data shared is grounded in Pixalate’s proprietary technology and analytics, which Pixalate is continuously evaluating and updating. Any references to outside sources should not be construed as endorsements. Pixalate’s opinions are just that - opinion, not facts or guarantees. Per the MRC, “'Fraud' is not intended to represent fraud as defined in various laws, statutes and ordinances or as conventionally used in U.S. Court or other legal proceedings, but rather a custom definition strictly for advertising measurement purposes. Also per the MRC, “‘Invalid Traffic’ is defined generally as traffic that does not meet certain ad serving quality or completeness criteria, or otherwise does not represent legitimate ad traffic that should be included in measurement counts. Among the reasons why ad traffic may be deemed invalid is it is a result of non-human traffic (spiders, bots, etc.), or activity designed to produce fraudulent traffic.” ** ** *By clicking Download and entering your email address, you are agreeing to our [Terms of Use](https://www.pixalate.com/terms) and have read and acknowledge our [Privacy Policy](https://www.pixalate.com/hubfs/2024-08-20_Pixalate_Privacy_Policy.pdf). *Copyright © 2025 Pixalate** * * * * * * * * * * * * * * * * * * * * * * * * * * * * × ## Subscribe to the Pixalate Blog The first step in ad fraud prevention. Loading... By entering your email address and clicking Submit, you are agreeing to our [Terms of Use](https://www.pixalate.com/terms) and [Privacy Policy](https://www.pixalate.com/privacypolicy). ![pixalate-logo-white](https://www.pixalate.com/hubfs/Blog_V2_08_26_2016/logo/Pixalate_Logo_WHITE.png) ##### Contact Us12 Loading... ![pixalate-logo-white](https://www.pixalate.com/hubfs/Blog_V2_08_26_2016/logo/Pixalate_Logo_WHITE.png) ##### Download GSTI Loading... Schedule your demo today Please complete all fields Loading... By entering your email address and clicking Submit, you are agreeing to our [Terms of Use](https://www.pixalate.com/terms) and [Privacy Policy](https://www.pixalate.com/privacypolicy). * * * * *