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.
u.expo.dev
classified as cdn · 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=cdn, openai=unknown, gemini=cdn. A human reviewed this domain's claims before anything here published.
Anthropic Claude — cdn
u.expo.dev is the Expo Application Services (EAS) Update endpoint used by React Native/Expo apps to fetch over-the-air JavaScript bundle updates, so it functions as app-delivery infrastructure/CDN rather than an analytics or ad endpoint; requests do carry limited device/runtime metadata used to select the correct update. This is consistent with the app's declared collection of device identifiers and diagnostic/app-performance data, and I have no evidence of an additional undeclared data flow.
OpenAI — unknown
The domain u.expo.dev is plausibly associated with Expo development tooling, but the provided data does not establish its specific function or data transmitted. The app’s label declares broad diagnostics, performance, interaction, and device-ID collection/sharing, so an undisclosed flow cannot be determined.
Google Gemini — cdn
u.expo.dev is operated by Expo (650 Industries) to deliver over-the-air updates and application assets for React Native apps, functioning as a content delivery service. This functional contact does not indicate undisclosed privacy practices given the app's extensive declarations for diagnostics and device identifiers.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
| Rocket Money - Bills & Budgets | — | 4 | 4 | 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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