How we audit analytics vendor sprawl
Many apps run four overlapping trackers and still cannot answer a simple retention question.
Start with a network and SDK inventory on staging and production builds. Marketing tags often appear after engineering believes the stack is locked.
Map each vendor to a purpose and a data category. If two tools collect the same screen views for different teams, consolidate.
Check contract clauses on subprocessors and training use of your event data. Privacy-safe intent dies when a vendor trains models on your users.
Prefer first-party collection with controlled exports when you need warehouse ownership.
Schedule a quarterly re-check. App store SDKs and CMP plugins change quietly between releases.