AWS RDS (PostgreSQL) vs Convex: Which is Better in 2026?
Choosing between AWS RDS (PostgreSQL) and Convex? Both are popular database tools. Below we compare them on pricing, free tiers, features, and pros & cons so you can pick the right fit for your stack.
Quick verdict
Convex is the safer pick if budget matters — it has a free tier, while AWS RDS (PostgreSQL) does not. Choose AWS RDS (PostgreSQL) when its specific features justify the cost. In our catalog, AWS RDS (PostgreSQL) rates slightly higher (4.9 vs 4.7 out of 5).
AWS RDS (PostgreSQL) vs Convex — Side by Side
| AWS RDS (PostgreSQL) | Convex | |
|---|---|---|
| Category | Database | Database |
| Pricing | Usage-based | Free · paid from $25/mo |
| Starting price | Pay-as-you-go | Free tier available |
| Free tier | — | |
| Rating | 4.9 | 4.7 |
| Best for | Database — postgresql, relational | Database — backend, baas |
Pros & Cons
- Battle-tested for financial workloads
- Seamless AWS ecosystem integration
- Automated failover & backups
- Full compliance certifications
- Usage-based cost scales with load
- Vendor lock-in to AWS
- Requires VPC/networking knowledge
- Excellent real-time data model
- Very fast developer iteration
- TypeScript-first backend
- Built-in cron, auth, and storage
- AI-assisted app generation
- Pricing is per-developer at scale
- Less control than self-managed databases
- Ecosystem smaller than traditional databases
Key Features Compared
AWS RDS (PostgreSQL)
- Fully managed PostgreSQL 16
- Multi-AZ automatic failover
- Automated backups & point-in-time recovery
- Read replicas (up to 5)
- Encryption at rest & in transit
- VPC private networking
Convex
- 1–6 developers
- 40 deployments
- Chef AI app generation
- Real-time database with indexes
- Text search and vector search
- File storage
Choose AWS RDS (PostgreSQL) if…
- Battle-tested for financial workloads
- Seamless AWS ecosystem integration
- Automated failover & backups
Choose Convex if…
- You want to start free — Convex has a free tier and AWS RDS (PostgreSQL) does not.
- Excellent real-time data model
- Very fast developer iteration
- TypeScript-first backend
Frequently Asked Questions
Is AWS RDS (PostgreSQL) better than Convex?⌄
Convex is the safer pick if budget matters — it has a free tier, while AWS RDS (PostgreSQL) does not. Choose AWS RDS (PostgreSQL) when its specific features justify the cost. In our catalog, AWS RDS (PostgreSQL) rates slightly higher (4.9 vs 4.7 out of 5).
What is the difference between AWS RDS (PostgreSQL) and Convex?⌄
AWS RDS (PostgreSQL) — Amazon's fully managed PostgreSQL with automatic backups, multi-AZ failover, and enterprise-grade reliability. Convex — Reactive backend-as-a-service with a built-in database, real-time queries, serverless functions, and AI-powered app generation. Both are database tools; the comparison table above breaks down pricing, free tiers, and what each is best for.
AWS RDS (PostgreSQL) vs Convex: which is cheaper?⌄
AWS RDS (PostgreSQL) pricing: Usage-based. Convex pricing: Free · paid from $25/mo. Confirm current pricing on each tool's official site, as plans change.
Which is rated higher, AWS RDS (PostgreSQL) or Convex?⌄
In our catalog, AWS RDS (PostgreSQL) rates 4.9 out of 5 and Convex rates 4.7 out of 5, so AWS RDS (PostgreSQL) has a slight edge on reviews.
See more options in our guide to the best database tools for startups.
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