Tools

Identity resolution

6 tools compared: how each is priced, where it runs, and what to consider instead.

Tool Pricing model Free tier Open source
Experian Marketing Services Identity resolution and audience data drawing on credit bureau Experian's consumer marketing database, for offline-to-online matching. Quote only No No
FullContact Privacy-focused identity resolution API that matches contact fragments (email, phone, device IDs) into a single hashed identity. Quote only No No
LiveRamp Identity resolution platform built around RampID, a pseudonymous identifier used to connect customer records across channels and partners. Quote only No No
Merkle Merkury Identity graph from agency holding company Merkle, linking first-party, offline and behavioral data into a single customer view. Quote only No No
TransUnion TruAudience Marketing identity and measurement suite from credit bureau TransUnion, built on its offline identity graph rather than credit data. Quote only No No
Unified ID 2.0 Open, free identity standard using hashed email/phone as a shared pseudonymous ID, an alternative to third-party cookies. Free Yes Yes

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