AWS Amplify vs Firebase Authentication: Full Comparison (2026)
Pricing, features, scores, and a clear verdict on which one is right for you.
The bottom line
AWS Amplify positions itself as "full-stack hosting and backend for web and mobile apps on aws" while Firebase Authentication goes after "google-backed auth with generous free tier for mobile and web" — so the right pick depends on which problem you're actually solving. They take different commercial approaches — AWS Amplify uses a usage-based-based model and Firebase Authentication a freemium approach, which affects how costs scale as your team grows. Firebase Authentication (founded 2011) has had more time to build out its ecosystem and integrations, while AWS Amplify (2017) tends to move faster on modern UX and newer workflows.
At a glance
| AWS Amplify | Firebase Authentication | |
|---|---|---|
| Our score | 68/100 | 76/100 |
| Starting price | Free | Free |
| Free tier | Yes | Yes |
| Best for | Full-stack hosting and backend for web and mobile apps on AWS | Google-backed auth with generous free tier for mobile and web |
Pricing comparison
Firebase Authentication
Pricing verified 2026-04-16
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Feature comparison
core
| Feature | AWS Amplify | Firebase Authentication |
|---|---|---|
| Git push deploys | Yes | No |
| Preview environments | Yes | No |
| Custom domains | Yes | No |
| Automatic HTTPS | Yes | No |
| Build pipeline | Yes | No |
| Email/password | No | Yes |
| Google OAuth | No | Yes |
| Apple OAuth | No | Yes |
| Phone SMS | No | Yes |
| Anonymous auth | No | Yes |
advanced
| Feature | AWS Amplify | Firebase Authentication |
|---|---|---|
| Auth (Cognito) | Yes | No |
| API (AppSync/API GW) | Yes | No |
| Storage (S3) | Yes | No |
| Functions (Lambda) | Yes | No |
| Hosting SSR | Yes | No |
| Multi-tenancy | No | Blaze |
| SAML SSO | No | Blaze ($0.015/MAU) |
| Custom claims | No | Yes |
| App Check | No | Yes |
| Blocking functions | No | Yes |
integrations
| Feature | AWS Amplify | Firebase Authentication |
|---|---|---|
| GitHub | Yes | No |
| GitLab | Yes | No |
| Bitbucket | Yes | No |
| All AWS services | Yes | No |
| AWS CodeCommit | Yes | No |
| Firebase (all products) | No | Yes |
| Google Cloud | No | Yes |
| Flutter | No | Yes |
| Android/iOS SDKs | No | Yes |
| Web SDK | No | Yes |
Ratings breakdown
What the data tells us
Key capabilities you'd miss
Choosing AWS Amplify means going without Email/password, Google OAuth, Apple OAuth (which Firebase Authentication offers). Choosing Firebase Authentication means losing Git push deploys, Preview environments, Custom domains. These are the features that typically drive the final decision — check whether your workflow depends on any of them before committing.
Choose AWS Amplify if...
- You want a free tier to get started
- You value powerful features over simplicity
- Getting strong value for money is a priority
Choose Firebase Authentication if...
- You want a free tier to get started
- You value an intuitive, easy-to-use interface
- Getting strong value for money is a priority
Frequently asked questions
Is AWS Amplify or Firebase Authentication better?
Firebase Authentication scores 76/100 compared to AWS Amplify's 68/100 on VendorVS. However, the best choice depends on your needs — AWS Amplify excels at ease of use (6/10) while Firebase Authentication scores 8/10.
How much does AWS Amplify cost compared to Firebase Authentication?
AWS Amplify starts at free (free tier available). Firebase Authentication starts at free (free tier available). AWS Amplify is the more affordable option.
Does AWS Amplify or Firebase Authentication have a free plan?
Yes, both AWS Amplify and Firebase Authentication offer free tiers, so you can try each before committing to a paid plan.
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