AWS Amplify vs Supabase
AWS Amplify and Supabase are backend-as-a-service platforms that simplify app development, but they differ significantly in architecture and ecosystem. Amplify tightly integrates AWS services and pricing, while Supabase provides an open-source PostgreSQL foundation with transparent, predictable costs.
AWS Amplify
AWS's full-stack development platform that provides pre-built UI components, CLI tools, and seamless integration with AWS services like Lambda, DynamoDB, Cognito, and AppSync.
Pricing Model
Pay-as-you-go per AWS service; free tier includes limited resources
Database
DynamoDB (NoSQL) or RDS (relational); managed by AWS
Authentication
Cognito with multi-factor authentication, social login, custom domains
Open Source
Amplify CLI and UI libraries are open-source; backend services proprietary
Pros
- Deep integration with entire AWS ecosystem and enterprise-grade infrastructure
- Comprehensive authentication, hosting, CI/CD, and analytics built-in
- Strong support for complex, large-scale applications with multi-region deployment
Cons
- Steeper learning curve and more complex pricing model with multiple service charges
- Vendor lock-in to AWS; migrations to other platforms are difficult
- Overkill for small projects; costs can escalate quickly without careful management
Supabase
Open-source Firebase alternative built on PostgreSQL, providing real-time databases, auto-generated APIs, authentication, and edge functions with a simpler, more transparent pricing model.
Pricing Model
Free tier with paid plans starting ~$25/month; transparent per-project billing
Database
PostgreSQL 15+; auto-generates RESTful and GraphQL APIs
Authentication
Auth0-compatible JWT-based system; social login, passwordless, MFA
Open Source
Fully open-source; can self-host entire stack via Docker
Pros
- Transparent, predictable pricing with generous free tier (up to 500MB storage, unlimited API calls)
- PostgreSQL foundation gives developers full SQL power and familiar relational database features
- Open-source architecture allows self-hosting and avoids vendor lock-in
Cons
- Smaller ecosystem and fewer pre-built integrations compared to AWS
- Less mature for enterprise-scale applications requiring multi-region failover
- Self-hosting requires DevOps expertise; managed service still newer than AWS
Supabase wins
Supabase wins for most projects due to transparent pricing, lower barrier to entry, PostgreSQL reliability, and freedom from vendor lock-in, though AWS Amplify remains superior for enterprise-scale, AWS-native applications.
AWS Amplify
Best for large enterprises, complex AWS-integrated architectures, and teams already invested in AWS
Supabase
Best for startups, small teams, MVPs, and developers prioritizing cost predictability and portability
Feature & Integration Comparison
| Aspect | AWS Amplify | Supabase |
|---|---|---|
| Database Type | DynamoDB (NoSQL) or RDS (relational) | PostgreSQL 15+ (relational, always) |
| API Generation | AppSync (GraphQL) or REST via Lambda/API Gateway | Auto-generated REST & GraphQL from schema |
| Real-time Capabilities | AppSync subscriptions (requires configuration) | Built-in real-time database subscriptions out-of-box |
| Authentication | Cognito (email, SMS, social, federated identity) | JWT-based (email, social, passwordless, SAML) |
| Hosting & Deployment | AWS Lambda, EC2, CloudFront; managed globally | Managed service (AWS/regional) or self-hosted via Docker |
| Vendor Lock-in Risk | High (AWS-specific services) | Low (open-source, portable PostgreSQL) |
Pricing & Cost Predictability
Cost Transparency
Supabase publishes fixed per-project tiers; Amplify pricing spans multiple AWS services, making total cost harder to estimate upfront.
Free Tier Generosity
Supabase free tier includes 500MB storage and unlimited API calls; Amplify free tier is limited and easily exhausted with moderate usage.
Scalability Cost Efficiency
AWS Amplify benefits from enterprise pricing at scale; Supabase pricing scales linearly and may become expensive at very high traffic volumes.
Predictable Budget Planning
Supabase fixed-tier model makes budgeting straightforward; Amplify requires monitoring multiple services to avoid surprise charges.
Ideal Use Cases & Flexibility
Choose AWS Amplify for large-scale, enterprise applications that need deep AWS integration, advanced analytics, multi-region infrastructure, and don't mind vendor commitment. Choose Supabase for startups, MVPs, and teams prioritizing simplicity, cost control, and the ability to self-host or migrate—especially if you value SQL and want to avoid AWS complexity. Supabase excels at speed-to-market for smaller teams; Amplify shines for complex architectures that leverage AWS's full service suite.
When to choose each
Choose AWS Amplify if…
Best for large enterprises, complex AWS-integrated architectures, and teams already invested in AWS
Choose Supabase if…
Best for startups, small teams, MVPs, and developers prioritizing cost predictability and portability
Frequently Asked Questions
Supabase is better for startups because it offers a more generous free tier, transparent pricing, and faster time-to-value with auto-generated APIs. Amplify's complexity and distributed AWS costs make it overkill for early-stage projects.
Amplify is tightly coupled to AWS services (DynamoDB, Cognito, Lambda, AppSync) and requires AWS infrastructure knowledge, while Supabase is built on open-source PostgreSQL with a simpler, standalone architecture. Supabase can be self-hosted; Amplify cannot.
Migrating from Amplify to Supabase is feasible because Supabase uses standard PostgreSQL and APIs; migrating from Supabase to Amplify is harder due to Amplify's AWS-specific services. Supabase's open-source nature makes it generally easier to move away from.
Sources & references
Suggested sources to verify product details, pricing, reviews, and specifications.
- DocsAWS Amplify Official Documentation
Official Amplify features, pricing, authentication, and AppSync configuration
- PricingSupabase Pricing
Transparent per-project pricing tiers and free tier details
- PricingAWS Amplify Pricing
AWS Amplify and underlying service pricing structure