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.
iid.googleapis.com
classified as unknown · 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. 2 of 3 models answered, overall confidence low — classification split: anthropic=unknown, openai=analytics · undisclosed split: anthropic=false, openai=true · no answer from gemini (parse). A human reviewed this domain's claims before anything here published.
Anthropic Claude — unknown
iid.googleapis.com is Google's Instance ID endpoint, which is used to issue and manage Firebase Cloud Messaging registration tokens (push notification infrastructure); it does not map cleanly to tracker/analytics/advertising, so I classify it as unknown rather than guess. Since a push token exchange for a notification app is plausibly functional rather than a data-collection flow requiring a label entry, and the provided data does not show what payload was sent, I do not mark it undisclosed.
OpenAI — analytics
iid.googleapis.com is a Google endpoint associated with Firebase Instance ID/device registration, commonly used to support messaging and related app instrumentation. The app declares no data collection or sharing, so this contact appears not covered by its privacy label.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
io.heckel.ntfy | — | 4 | 20 | 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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