https://www.learncloudnative.com/blog/2022-01-30-blog-on-oci
Here’s a quick comparison of always-free resources that each cloud vendor offers. It should be obvious this is not a detailed nor an apple-to-apple comparison. The offerings and service names differ between vendors, and so do terms provided by different providers. I only picked the compute, database, and storage options for a quick comparison.
| Vendor | Compute | Databases | Storage |
|---|---|---|---|
| AWS | 750 hours (1yr only) | 25 GB DynamoDB | 100 GB storage gateway |
| Azure | 750 hours (1yr only) | Azure Cosmos DB (25 GB) | 5 GB blob storage (1yr only) |
| 1 e2-micro instance per month | Firestore (1 GB per project) | 5 GB-months of regional storage | |
| Oracle | 4 ARM-based A1 cores and 24 GB memory | NoSQL DB (3 tables with 25 GB per table) | 10 GB object storage |