Letra ChicaManaged PostgreSQL
Which PostgreSQL offering and tier meets each requirement, with the monthly floor of the smallest configuration that meets it. Cross-zone high availability doubles compute and storage on all three clouds.
Azure · Cheapest that meets it
AWS · Cheapest that meets it
GCP · Cheapest that meets it
| Option | No public endpoint | Cross-zone high availability | Login with the cloud identity | Scales to zero on its own | Can be stopped without auto-restart | Monthly floor |
|---|---|---|---|---|---|---|
| AzureAzure Database for PostgreSQL Flexible Server — Burstable B1ms | Meets | Doesn’t meetBurstable doesn't support high availability. | Meets | Doesn’t meet | Doesn’t meetIt can be stopped, but the service restarts it after 7 days. | USD 16.09/ mo |
| AzureAzure Database for PostgreSQL Flexible Server — General Purpose D2ds_v5, HA zone-redundant | Meets | MeetsOnly in regions with zones and capacity; otherwise it can fall back to same-zone HA. | Meets | Doesn’t meet | Doesn’t meetLike any Flexible Server, it restarts after 7 days. | USD 267/ mo |
| AWSAmazon RDS for PostgreSQL — db.t4g.micro, Single-AZ | Meets | Doesn’t meet | Meets | Doesn’t meet | Doesn’t meetCan be stopped for up to 7 days; then RDS starts it again. | USD 13.98/ mo |
| AWSAmazon RDS for PostgreSQL — db.t4g.micro, Multi-AZ | Meets | MeetsSynchronous standby in another AZ that doesn't serve reads. | Meets | Doesn’t meet | Doesn’t meet | USD 27.96/ mo |
| AWSAurora PostgreSQL Serverless v2 (0 ACU minimum) | Meets | With caveatsStorage is replicated across 3 AZs, but compute failover needs a replica in another AZ, billed separately. | Meets | MeetsWith a 0 ACU minimum it pauses itself after a period with no connections (Aurora PostgreSQL 13.15, 14.12, 15.7, 16.3 or later). | Doesn’t meetThe cluster can be stopped for up to 7 days. | USD 0/ mo |
| GCPCloud SQL for PostgreSQL Enterprise — db-custom-1-3840, zonal | Meets | Doesn’t meet | Meets | Doesn’t meet | MeetsWhile stopped there's no compute charge (storage and IP still apply) and it doesn't restart on its own. | USD 51.01/ mo |
| GCPCloud SQL for PostgreSQL Enterprise — db-custom-1-3840, HA regional | Meets | MeetsPrimary and standby in two zones, with a synchronous regional disk. | Meets | Doesn’t meet | Meets | USD 102/ mo |
Floors at list price as of 2026-10-06 (eastus · us-east-1 · us-east1), in USD, with no discounts or taxes.
Sources
Azure · Azure Database for PostgreSQL Flexible Server — Burstable B1ms
↗ learn.microsoft.com↗ learn.microsoft.com↗ learn.microsoft.com↗ learn.microsoft.com$ PostgreSQL Flexible Server B1ms (Burstable) × 1$ PostgreSQL Flexible Server storage (GB) × 32
Azure · Azure Database for PostgreSQL Flexible Server — General Purpose D2ds_v5, HA zone-redundant
With HA on v5 both primary and standby are billed (compute times 2); the floor also doubles storage.
↗ learn.microsoft.com↗ learn.microsoft.com↗ learn.microsoft.com↗ learn.microsoft.com$ PostgreSQL Flexible Server D2ds_v5 (General Purpose, 2 vCores) × 2$ PostgreSQL Flexible Server storage (GB) × 64
AWS · Amazon RDS for PostgreSQL — db.t4g.micro, Single-AZ
↗ docs.aws.amazon.com↗ docs.aws.amazon.com↗ docs.aws.amazon.com$ RDS PostgreSQL db.t4g.micro (Single-AZ) × 1$ RDS PostgreSQL gp2 storage (GB, Single-AZ) × 20
AWS · Amazon RDS for PostgreSQL — db.t4g.micro, Multi-AZ
↗ docs.aws.amazon.com↗ docs.aws.amazon.com↗ docs.aws.amazon.com$ RDS PostgreSQL db.t4g.micro (Multi-AZ) × 1$ RDS PostgreSQL gp2 storage (GB, Multi-AZ) × 20
AWS · Aurora PostgreSQL Serverless v2 (0 ACU minimum)
While paused there's no compute charge; storage (per GB used) and backups are still billed.
↗ docs.aws.amazon.com↗ aws.amazon.com↗ docs.aws.amazon.com↗ docs.aws.amazon.com↗ docs.aws.amazon.com
GCP · Cloud SQL for PostgreSQL Enterprise — db-custom-1-3840, zonal
↗ docs.cloud.google.com↗ docs.cloud.google.com↗ docs.cloud.google.com↗ cloud.google.com$ Cloud SQL PostgreSQL Enterprise, zonal (per vCPU) × 1$ Cloud SQL PostgreSQL Enterprise, zonal (per GiB of RAM) × 3.75$ Cloud SQL SSD storage, zonal (GiB) × 10
GCP · Cloud SQL for PostgreSQL Enterprise — db-custom-1-3840, HA regional
↗ docs.cloud.google.com↗ docs.cloud.google.com↗ docs.cloud.google.com↗ cloud.google.com$ Cloud SQL PostgreSQL Enterprise, regional HA (per vCPU) × 1$ Cloud SQL PostgreSQL Enterprise, regional HA (per GiB of RAM) × 3.75$ Cloud SQL SSD storage, regional HA (GiB) × 10
Verified on 2026-10-06 · Dictionary