palaniappan p7 min
Amazon SNS Pricing: Why a Single Publish Can Bill as Four Charges
SNS bills publish and delivery separately. Standard topic publish is $0.50/M, but HTTP delivery is $0.60/M on top, email is $2/100K, SMS varies by country, and mobile push is $0.50/M. A single publish to a topic fanned out to four protocols generates four billable lines — five if you count the cross-region data transfer.