I know it might not seem like a huge deal, but I like to keep an eye on my expenses, and I'm puzzled about my AWS bill. I set up Cognito for authentication on my AWS account for personal projects, thinking it was free as long as I didn't exceed 10,000 monthly active users. Currently, I only have 1 User Pool with just 1 user, and I have it configured for signup and sign-in through email. I haven't used Cognito since mid-August, and yet I'm still seeing a $6 charge each month. It shows the "Essential" feature plan, which I assume is the default setting. Should I switch to the "Lite" plan instead? I also didn't find anything in Cost Explorer that might clarify these charges.
2 Answers
Hey, there's a useful document that covers how to monitor your Cognito usage and costs in more detail. You can find it here: https://go.aws/4njnsWw. If you're still confused, reaching out to AWS Billing support could give you more insight into any charges you're seeing.
It’s possible you created a Cognito App Client, which could be contributing to the fees. Check if you have any M2M (Machine to Machine) authorization app clients set up. That might explain the charges, especially if you’ve got a client secret involved! You should look into that.

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