FullStory vs Datadog

Side-by-side comparison to help you choose the best tool.

FullStory

freemium

Data & Analytics

4.5 / 5.0

FullStory is a digital experience intelligence platform that captures every user interaction and uses AI to surface friction, drop-off points, and bugs across web and mobile. Its AI features include auto-generated session data, frustration signal detection, and DX Data - a structured dataset derived from behavioural signals. FullStory bridges the gap between quantitative analytics and qualitative session replay.

Best for: Product and engineering teams wanting complete session capture with AI insight generation to identify and fix UX friction

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Datadog

paid

Data & Analytics

4.6 / 5.0

Datadog is a cloud-scale observability and security platform that monitors infrastructure, applications, and logs in real time. Its AI features include Watchdog - an autonomous anomaly detection engine - plus Bits AI, a natural language assistant that helps engineers investigate incidents, query logs, and understand distributed traces without digging through dashboards manually.

Best for: DevOps and SRE teams monitoring cloud infrastructure and applications at scale

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Feature Comparison

Feature	FullStory	Datadog
Pricing	freemium	paid
Category	Data & Analytics	Data & Analytics
Rating	★★★★½ 4.5	★★★★½ 4.6
Best For	Product and engineering teams wanting complete session capture with AI insight generation to identify and fix UX friction	DevOps and SRE teams monitoring cloud infrastructure and applications at scale
Views	5	6

Pros & Cons — FullStory

Pros

Captures every interaction without sampling
AI frustration detection identifies UX problems automatically
DX Data enables analytics on behavioural signals

Cons

Can be expensive at enterprise scale
Full capture creates large data volumes to manage

Pros & Cons — Datadog

Pros

Comprehensive full-stack observability
Powerful AI anomaly detection
Extensive integrations (600+)

Cons

Costs escalate quickly at scale
Can be complex to configure for beginners

Key Features — FullStory

Full session capture & replay
AI frustration signal detection
DX Data structured behavioural dataset
Funnel & conversion analysis
Error tracking integration

Key Features — Datadog

AI anomaly detection (Watchdog)
Bits AI natural language queries
APM & distributed tracing
Log management
Infrastructure monitoring

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