Amazon Cognito vs. Auth0 by Okta

Amazon Cognito

aws.amazon.com/pm/cognito/

The biggest advantage of Cognito is that it's a part of the AWS ecosystem and integrates well with other AWS services. The free tier comes with 50,000 MAUs and the price for each additional MAU starts at $0.0055/month and goes down to as low as $0.0025/month as you scale to tens of millions of users. It integrated with four federated identity providers - your users can sign up with Facebook, Google, Apple and Amazon.

Auth0 by Okta

auth0.com/

Auth0 is Okta's B2C identity management solution. It's an all-in-one package, with social login, bot detection, UI components, anonymous users, single-sign-on, MFA etc. The free tier comes with 7,500 MAUs. That said, it's relatively expensive and 20,000 MAUs will cost you $1400/month.

Image for Amazon Cognito
Amazon Cognito
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Auth0 by Okta
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Pros

  • Generous free tier
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  • Low price per monthly active user
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  • Part of AWS ecosystem
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Cons

  • Confusing, sometimes misleading documentation
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  • Difficult to set up
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Pros

  • Offers passwordless, social, and multifactor auth
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  • Extensive documentation and community support
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  • Breach detection and brute-force protection
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Cons

  • Free tier has restrictions on active users and features
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  • Higher tiers can be expensive
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