According to Pixalate’s rankings, ‘Paper.io 2’ was at the top for Google Play Store, and ‘Crossword Jam’ ranked No. 1 for Apple App Store; ‘Plex’ claimed the top spot on Samsung Smart TV while ‘Pluto TV’ was among the top-ranked CTV apps on Amazon Fire TV; telegraph.co.uk ranked No. 1 for programmatic ad quality in the UK
London, May 15, 2025 (GLOBE NEWSWIRE) — Pixalate, a leading global platform for ad fraud protection, privacy, and compliance analytics, has released the April 2025 Publisher Trust Index (PTI) for the United Kingdom (UK). This index evaluates websites and mobile apps across the Apple App Store, Google Play Store, and Connected TV (CTV) apps on Amazon Fire TV and Samsung Smart TV.
The Publisher Trust Indexes represent a comprehensive approach to quality measurement and provide monthly rankings of the world’s websites and apps, offering unprecedented transparency to the open programmatic advertising ecosystem.
In addition to the report for the UK, Pixalate has also released Publisher Trust Indexes for Brazil, the U.S., Canada, Germany, Spain, the Netherlands, and Japan.
UK Web PTI Rankings (April 2025)
- telegraph.co.uk
- thetimes.co.uk
- independent.co.uk
UK Mobile PTI Rankings (April 2025)
Apple App Store
- Crossword Jam
- Blockudoku
- Wordscapes
Google Play Store
- Paper.io 2
- Pixel Art Color by Number
- Met Office Weather
UK Connected TV PTI Rankings (April 2025)
Amazon Fire TV
- Pluto TV
- TalkTV
- Dove Channel
Samsung Smart TV
- Plex
- SAMSUNG TV PLUS
- Sling TV
Apple TV
- CBS Sports App
- Plex
- HGTV GO
Download the full rankings here.
Pixalate’s data science team analyzed over 34 billion global open programmatic ad impressions across 14+ million Google Play Store and Apple App Store mobile apps, and Connected TV (CTV) apps across Roku, Amazon Fire TV, Samsung Smart TV, and Apple TV app stores in April 2025 to compile the global Publisher Trust Indexes.
Pixalate uses its proprietary algorithms to measure quality metrics, including invalid traffic (IVT or ad fraud), Made For Advertising (MFA) risk, brand safety, ad density, viewability, reach, and more. The Publisher Trust Indexes spans rankings for 235+ countries across all four global regions: North America, EMEA, APAC, and LATAM, and provides breakdowns by 20+ different IAB taxonomy website categories. Pixalate’s methodology can be found at Publisher Trust Index: Methodology
Download the Reports
- UK Publisher Trust Index
- Germany Publisher Trust Index
- Canada Publisher Trust Index
- Brazil Publisher Trust Index
- Netherlands Publisher Trust Index
- Japan Publisher Trust Index
- Spain Publisher Trust Index
- USA Publisher Trust Index
About Pixalate
Pixalate is a global platform specializing in privacy compliance, ad fraud prevention, and digital ad supply chain data intelligence. Founded in 2012, Pixalate is trusted by regulators, data researchers, advertisers, publishers, ad tech platforms, and financial analysts across the Connected TV (CTV), mobile app, and website ecosystems. Pixalate is accredited by the MRC for the detection and filtration of Sophisticated Invalid Traffic (SIVT). pixalate.com
Disclaimer
The Publisher Trust Index (PTI) reflects Pixalate’s opinions with respect to factors that Pixalate believes may be useful to the digital media industry. Our reports and indexes examine programmatic advertising activity on mobile apps and Connected TV (CTV) apps. 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. This report is not intended to impugn the standing or reputation of any person, entity or app. Per the MRC, “’Fraud’ is not intended to represent fraud as defined in various laws, statutes and ordinances or as conventionally used in UK 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 January be deemed invalid is it is a result of non-human traffic (spiders, bots, etc.), or activity designed to produce fraudulent traffic.”.
CONTACT: Nina Talcott ntalcott@pixalate.com
