In short
- Free tier covers most needs. GA4 360 enterprise tier is paid
- Event-based data model (no more sessions/pageviews-as-primary)
- Native BigQuery export for raw event analysis
- Data-driven attribution (black-box ML model) is the default
What is GA4
GA4 is Google’s free analytics platform, the successor to Universal Analytics (sunset July 2023). The data model is event-based: every page view, click, scroll, and conversion is an event with parameters. Reports are configurable. raw data is exportable to BigQuery for SQL-level analysis.
Why GA4 alone isn’t enough in 2026
GA4 is free, ubiquitous, and good at what it does, but it’s pixel-based and uses Google’s data-driven attribution, which is a black box. For brands spending real money on paid acquisition, three GA4 limitations matter:
- Pixel-only tracking misses 20-40% of conversions due to ITP, ad blockers, and CMP consent dropout
- Black-box attribution assigns credit by a model you can’t inspect, override, or compare
- Cross-channel attribution is biased toward Google’s own surfaces
For brands above $50k/month in paid spend, GA4 gets paired with a first-party attribution layer like adtribute that captures conversions server-side and assigns credit through a transparent model.
FAQ about GA4
Is GA4 free?
Yes. The standard version of Google Analytics 4 is completely free with no credit card required. The only paid version is Google Analytics 360, which starts at around $50,000 per year and is designed for enterprises with high event volume or strict SLAs.
What are the limits of free GA4?
Data retention is capped at 14 months for event-level data. The free BigQuery export is limited to 1 million events per day. Data sampling kicks in on Explorations when queries exceed about 10 million events. For most businesses these limits are never hit.
Is GA4 GDPR-compliant?
GA4 can be configured to be GDPR-compliant with IP anonymization, Consent Mode, and EU data residency, but several EU data protection authorities have ruled standard GA implementations non-compliant in the past. Most brands now run GA4 server-side with Consent Mode v2 to address this.
GA4 vs Universal Analytics: what changed?
GA4 replaced Universal Analytics in July 2023 and uses an event-based data model rather than the session/hit model UA used. It is built for cross-platform (web + app) tracking, includes AI-powered insights and predictions, and integrates more tightly with Google Ads and BigQuery.
How to use GA4?
Sign up free at analytics.google.com, create a property, and install the GA4 tag via Google Tag Manager or directly on your site. Data starts flowing within minutes.
Why choose GA4?
GA4 is Google’s free web and app analytics with an event-based data model, AI-powered insights, and free BigQuery export for unlimited custom analysis.
How does GA4 work?
GA4 collects events via the JavaScript snippet or measurement protocol, then exposes them in reports plus BigQuery for unlimited custom querying.
How to learn GA4?
GA4 maintains documentation at support.google.com/analytics and runs free Google Analytics Academy certifications. Their YouTube channel has product walkthroughs and partner agencies offer paid training.
What are GA4 alternatives?
The main alternatives are Matomo, Plausible, Fathom, and Mixpanel for privacy-friendly or product-focused web analytics.
What are GA4 reviews?
GA4 is rated 4.5 on G2 with 6,708 reviews. See the reviews for detailed feedback.
Does GA4 have an API?
Yes, GA4 provides a Data API and Admin API for programmatic reporting and configuration. Documentation is at developers.google.com/analytics.
Does GA4 have a trial or a demo?
GA4 is free with no trial needed. Sign up at analytics.google.com.
Does GA4 have AI?
Yes, GA4 includes Google’s machine-learning layer for predictive metrics like purchase probability and churn likelihood, anomaly detection in reports, and an AI insights panel that surfaces trends automatically. The AI is built on Google’s own models and runs on top of the event-based data model.
GA4 pricing
GA4 is free. Plans are organised as GA4 360 enterprise tier. See the full GA4 pricing page for current tiers and any add-ons.
