GA4 vs Universal Analytics: what changed and what to do
Universal Analytics was retired by Google in July 2023. GA4 is now the only Google Analytics platform and uses an entirely different event-based data model. If you're still relying on Universal Analytics data or haven't migrated, you're operating blind on current performance.
Universal Analytics is gone — you must use GA4. The migration is non-trivial because the data models are fundamentally different, but it's mandatory for any business that wants to measure marketing performance.
Side-by-side breakdown
| Dimension | Universal Analytics | GA4 |
|---|---|---|
| Data model | Sessions and pageviews | Events and parameters |
| Cross-platform tracking | Web only (Apps separate) | Web + apps unified |
| Bounce rate | Standard metric | Replaced by engagement rate |
| Reporting interface | Familiar, simpler | Steeper learning curve, more flexible |
| BigQuery export | Paid (GA360 only) | Free for all properties |
| Status | Discontinued July 2023 | Active, mandatory |
Who should choose what
Choose Universal Analytics if…
No one — Universal Analytics has been deprecated and historical data is no longer accessible.
Choose GA4 if…
Every business with a website. GA4 is the only Google Analytics option in 2026.
Still not sure which is right?
Book a free strategy call. We'll review your situation and give you a clear, no-spin recommendation.
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