Not clear?
https://bsky.app/profile/iceblock.app/post/3lmzykc7rb42d
Apple stores which devices/users install which apps. They have the device IDs. US government could obtain a list of people who installed the app if a court authorized it. Not clear what they mean by having to storing device IDs. Those IDs aren't accessible to Android apps.
Discussion
nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpq9u565v7z5w69cthnygfg0yjgkt62fxsq90gdurapdj2wzw9vdufsspzt3z Apple stores the hardware IDs for each device and account. Google does the same on Google Mobile Services devices. App developers don't have access to hardware IDs on either platform. It was not clear what they were talking about. They made another post where they claimed FCM requires storing device IDs, which is wrong. FCM and APNs have a similar design and impact on privacy. This app is giving people a false of privacy.