Pixalate’s new reports, powered by the Publisher Trust Index (PTI), examine which supply-side platforms (SSPs) maintain the most significant number of ‘Direct’ app-ads.txt relationships with the Top 100 mobile apps ranked by ad traffic quality. The findings show Google Ad Exchange leads globally with ‘Direct’ connections on 100% of apps among the Google Play Store Top 100 in North America; Verve (85% on Google Play Store in LATAM), PubMatic (top-three in all four regions), also among leaders

Pixalate, the leading ad fraud protection, privacy, and compliance analytics platform, introduced the Supply-Side Platform (SSP) Rankings for ‘Direct’ Access to the Top 100 Mobile Apps, according to Pixalate’s Publisher Trust Index (PTI), which ranks publishers based on programmatic ad traffic quality.

The July 2025 reports cover North America, Latin America (LATAM), the Asia-Pacific (APAC), and the Europe, Asia and the Middle East (EMEA) region. Supply-Side Platforms (SSPs) are ranked by the number of mobile apps (among the Top 100 in each region) with which they maintain a direct-seller relationship, according to Pixalate’s app-ads.txt analysis.

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Top SSPs With ‘Direct’ Access to Top 100 Mobile Apps (July 2025)

Google Play Store

Apple App Store

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).

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