vioscale
Comparison

AWS Lambda vs Azure Functions

On the evidence we track, AWS Lambda leads this comparison with a composite score of 67/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

AWS Lambda full profile →Azure Functions full profile →
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★AWS Lambda67
Azure Functions40
Score
Vioscale score
AWS Lambda67 / 100medium · 73%
Azure Functions40 / 100low · 32%
Pricing
Free tier
AWS Lambda✓
Azure Functions✓
Model
AWS Lambdafreemium
Azure Functionsfreemium
Price level
AWS Lambdalow
Azure Functionsunknown
Transparent
AWS Lambda✗
Azure Functions–
Integrations
Count
AWS Lambda220
Azure Functions–
Security
Disclosure policy
AWS Lambda✓
Azure Functions–
Fedramp
AWS Lambda✓
Azure Functions–
Gdpr
AWS Lambda✓
Azure Functions–
Hipaa
AWS Lambda✓
Azure Functions–
Iso27001
AWS Lambda✓
Azure Functions–
Pci
AWS Lambda✓
Azure Functions–
Soc2
AWS Lambda✓
Azure Functions–
Reliability
Status page
AWS Lambda✓
Azure Functions✓
Market
Availability
AWS LambdaAvailable worldwide · HQ US
Azure Functions–

Capabilities

Feature-by-feature on the axes that matter for serverless & edge platforms. “-” means undocumented, not absent.

Core
Execution substrate
AWS Lambda-
Azure Functions-
Language / runtime breadth
AWS LambdaPython, Node.js, Java, C#, Go, Ruby, custom runtimes
Azure Functions.NET, Java, Python, Node.js, and additional languages supported
Reach
Runs at global edge PoPs
AWS Lambda-
Azure Functions-
Scale
Scale to zero
AWS Lambda✓
Azure Functions-
Performance
Cold-start profile
AWS LambdaProvisioned concurrency
Azure Functions-
Limits
Max execution duration
AWS Lambda-
Azure Functions-
Integration
Event source breadth
AWS Lambda220+ AWS services including S3, DynamoDB, Kinesis, SQS, API calls, event streams
Azure Functions-
HTTP endpoint trigger
AWS Lambda✓
Azure Functions-
Cron / scheduled invocations
AWS Lambda-
Azure Functions-
State
Durable state / workflow primitive
AWS Lambda✓
Azure Functions-
Flexibility
Bring-your-own runtime / container
AWS Lambda✓
Azure Functions-
Deployment
Hosting
AWS LambdaCloud only
Azure FunctionsCloud only
Ops
Built-in logs / metrics / tracing
AWS Lambda✓
Azure Functions✓
Extensibility
CLI + IaC / framework support
AWS Lambda✓
Azure Functions-

What each one is

The product in its own terms, so the numbers below have context.

AWS Lambda

Leader

A serverless compute service that automatically scales in response to demand and reduces to zero during idle periods. Execute code triggered by events from AWS services and external applications with built-in security, monitoring, and support for multiple programming languages.

Independently observed

Azure Functions

Azure Functions enables serverless code execution triggered by events. Design and deploy applications in your language of choice while focusing on business logic.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

AWS Lambda

Leader
Usage-basedFree tier

Pay-per-use billing with free tier included.

as of verify ↗

Azure Functions

Usage-based

Consumption-based pricing

as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
AWS Lambda✓
Azure Functions✓
CLI
AWS Lambda✓
Azure Functions✗
Deployment
Cloud / SaaS
AWS Lambda✓
Azure Functions✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

AWS Lambda

Leader
8 total
  • AWS S3
  • AWS DynamoDB
  • AWS Kinesis
  • AWS SQS
  • AWS EventBridge
  • Amazon MSK
  • AWS CloudWatch
  • AWS X-Ray
Independently observed

Azure Functions

Not documented yet.

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.