The three services run the same Kubernetes 5,150 , so BookNest's manifests, Helm 29,435 chart and Argo CD 126 setup move between them unchanged. The differences are prices, support windows and how much of the node layer each runs for you:
| On 26 Sep 2026 | Amazon EKS 24 | Google GKE 1 | Azure 6 AKS 6 |
|---|---|---|---|
| Control plane | $0.10 per hour | $0.10 per hour | Free tier $0; Standard $0.10 |
| Free allowance | None | $74.40 a month (one cluster) | Free tier, no SLA |
| Newest minor | 1.36 | 1.37 (Rapid channel) | 1.36 (1.37 in preview) |
| Support per minor | 14 + 12 months ($0.60/h) | ~14, to 24 months ($0.60/h) | 12 + 12 months (Premium) |
For learning and staging, the cheapest control plane is AKS's Free tier or GKE's one free cluster, where Autopilot bills BookNest only for its Pods' requests. For production with an SLA, all three charge $0.10 an hour, and the choice follows the rest of your platform. BookNest's other resources live in AWS 24 (AWS CloudFormation), in CloudFormation 24 , so its natural home is EKS: version 1.36, an upgrade planned before the 14 months run out, the API and front end on a Spot node group and PostgreSQL 1,289 on On-Demand, or on a managed database such as Amazon RDS 24 for PostgreSQL instead of StatefulSets and PostgreSQL's StatefulSet. Keep kind 14,561 for development: it costs nothing.