digital privacy
SDK tracker
Third-party tracking code embedded inside ordinary apps, silently reporting your usage and location to companies you have never heard of.
An SDK tracker is third-party code that app developers embed for analytics, ads, or crash reporting — and that quietly reports your usage, device details, and often location to the SDK's maker. The average popular app contains several.
This is why "I only use a few trusted apps" underestimates exposure: installing one app can mean admitting half a dozen tracking companies you have never heard of. The trackers travel with the app, not the brand. No app platform, no SDKs — which is why even a modest dumbphone outperforms a carefully configured smartphone on this axis.
Related Terms
View all →Advertising ID
The resettable identifier every smartphone carries that lets apps and ad networks assemble your behavior into one profile.
Data broker
A company that buys, aggregates, and resells personal data — location trails, purchases, profiles — usually without your knowledge.
Device fingerprinting
Identifying you by your device's unique combination of settings and characteristics — no cookies required.