Amazon SQS FIFO versus Amazon SNS Standard

15 Apr 2021

Learn how Amazon SQS FIFO differs from Amazon SNS Standard.

Amazon SQS FIFO Amazon SNS Standard
Scaling

3000 msg/sec (batch write)

not disclosed (default soft limit depends on region; e.g., 9000 msg/sec in eu-west-1)

Max. message size

256 KB

256 KB

Persistence

up to 14 days

no

Replication

Multi-AZ

Multi-AZ

Order guarantee

yes

no

Delivery guarantee

exactly-once possible

at least once

Pricing

per message

per message

Protocols

AWS Rest API

AWS Rest API

AWS Integrations

Lambda

Lambda, SQS, webhook

License

AWS only

AWS only

Encryption at rest

yes

yes

Encryption in transit

yes

yes