Azure Functions vs Tau
Compare categories, runtimes, pricing, regions, infrastructure, and platform trade-offs.
Comparison space
Updated
Comparison facts
Platform
Hosting model
Managed
Supported
Managed
Not supported
Self-Hosted
Not supported
Self-Hosted
Supported
Services
CDN
Not supported
CDN
Supported
Functions
Supported
Functions
Supported
Key-Value Store
Not supported
Key-Value Store
Supported
Object Storage
Not supported
Object Storage
Supported
Queues
Not supported
Queues
Supported
Workloads
APIs
Supported
APIs
Supported
Backend Services
Supported
Backend Services
Supported
Background Workers
Supported
Background Workers
Supported
Data Processing
Supported
Data Processing
Not supported
Real-Time Applications
Not supported
Real-Time Applications
Supported
Scheduled Jobs
Supported
Scheduled Jobs
Supported
Static Sites
Not supported
Static Sites
Supported
Web Applications
Not supported
Web Applications
Supported
Capabilities
Compute Autoscaling
Supported
Compute Autoscaling
Not recorded
Deployment Rollbacks
Supported
Deployment Rollbacks
Not recorded
Deployment Traffic Splitting
Supported
Deployment Traffic Splitting
Not recorded
Preview Environments
Supported
Preview Environments
Not recorded
Scale to Zero
Supported
Scale to Zero
Not recorded
Zero-Downtime Application Deployments
Supported
Zero-Downtime Application Deployments
Not recorded
Development & Execution
Deployment & packaging
Bare metal / VM
Not supported
Bare metal / VM
Supported
Docker / OCI
Supported
Docker / OCI
Not supported
Kubernetes
Supported
Kubernetes
Not supported
Local Emulator
Supported
Local Emulator
Supported
Serverless (Managed Runtime)
Supported
Serverless (Managed Runtime)
Supported
Runtimes
.NET Runtime
Supported
.NET Runtime
Not supported
Custom Runtime
Supported
Custom Runtime
Not supported
JVM
Supported
JVM
Not supported
Node.js
Supported
Node.js
Not supported
PowerShell
Supported
PowerShell
Not supported
WebAssembly
Not supported
WebAssembly
Supported
Languages
C#
Supported
C#
Not supported
Go
Not supported
Go
Supported
Java
Supported
Java
Not supported
JavaScript
Supported
JavaScript
Supported
PowerShell
Supported
PowerShell
Not supported
Python
Supported
Python
Supported
Rust
Not supported
Rust
Supported
TypeScript
Supported
TypeScript
Supported
Triggers
Database Events
Supported
Database Events
Supported
Event Streams
Supported
Event Streams
Not supported
HTTP Requests
Supported
HTTP Requests
Supported
Publish-Subscribe Topics
Supported
Publish-Subscribe Topics
Supported
Queue Messages
Supported
Queue Messages
Supported
Scheduled Invocation
Supported
Scheduled Invocation
Supported
Storage Events
Supported
Storage Events
Supported
Pricing
Billing basis
Resource based
Plan based
Requests / executions
- On-demand executions — $0.40 · per 1 million executions
Unknown
Free entry / commitment
Recurring free allowances
Free plan
Infrastructure & Availability
Infrastructure provider
- Microsoft Azure
- Amazon Web Services
- Microsoft Azure
- Google Cloud Platform
- DigitalOcean
- Customer-operated bare-metal, virtual-machine, sovereign-cloud, and edge infrastructure
Execution & placement
- Scope: Regional
Unknown
Security & Compliance
Access & identity
Access Control
Azure RBAC, function access keys, and App Service Authentication
Auth service authentication, authorization, and repository-to-project mapping
Audit Logging
Azure Activity Log management events
Unknown
Encryption & secrets
Secrets Management
Encrypted app settings and Key Vault references
Deployment keys, webhook secrets, and X.509 certificates
Encryption at Rest
Encrypted settings, connection strings, and storage
Unknown
Encryption in Transit
Unknown
Automatic Let's Encrypt certificates and authenticated encrypted node traffic
Network isolation & protection
Private Networking
Private Endpoints
Unknown
Network Isolation
App Service app isolation
Unknown
Assurances & programs
FedRAMP
FedRAMP High
Unknown