This page aggregates measured, corroborated evidence: donors' iPhones recorded apps contacting this domain, every claim below was reported by separate accepted donations and published under a human verdict (later rows for an approved app inherit its verdict). A contact is a measurement, not an accusation — it does not show what data was sent.
a5lng2.cdn-settings.appsflyersdk.com
classified as analytics · 2
What our research panel found AI-drafted · human-reviewed
We ask several independent AI models the same question and publish their answers separately — cross-vendor agreement is evidence against fabrication, and disagreement is worth seeing. 3 of 3 models answered, overall confidence medium — classification split: anthropic=analytics, openai=analytics, gemini=tracker. A human reviewed this domain's claims before anything here published.
Anthropic Claude — analytics
The domain is a subdomain of appsflyersdk.com, infrastructure for the AppsFlyer mobile attribution/marketing-analytics SDK; this specific host appears to be a remote-configuration/settings endpoint for that SDK rather than a generic content CDN. The app's label already declares collecting and sharing device or other IDs plus app interaction data, which would cover an attribution SDK contact, so nothing here clearly exceeds the declared label.
OpenAI — analytics
The appsflyersdk.com domain is associated with the AppsFlyer mobile attribution/analytics SDK. The app declares collection of App Interactions and Device or other IDs, so this contact does not clearly imply an undeclared data flow.
Google Gemini — tracker
a5lng2.cdn-settings.appsflyersdk.com is operated by AppsFlyer, a mobile attribution and analytics platform. The contact appears disclosed as the app explicitly declares collecting and sharing Device or other IDs and app interactions.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
| Booking.com: Hotels & Travel | — | 4 | 12 | 2026-07-28 → 2026-07-29 |
The corpus grows one report at a time: donate your App Privacy Report — anonymous by design.
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