Updated Last week, Apple began requiring iOS developers to justify the use of a specific set of APIs that can be used for device fingerprinting.
How law enforcement breaks into iPhones
Yet iGiant doesn't seem to be making much of an effort to ensure the likes of Meta and Spotify follow the rules, it claims.
Google was also accused of violating Cupertino's rules, although the web giant insists it is doing nothing wrong; see the update below.
Device fingerprinting involves collecting information about various device settings and components and then combining these into a single identifier that is likely to be unique and thus useful for targeting people with ads and other things tailored to their individual interests and circumstances.
