Amazon DocumentDB instance pricing is more expensive than MongoDB Atlas, the fully managed MongoDB service. AWS DocumentDB starts at $200 per month for a single instance, with no free tier. Pricing is per instance-hour consumed, from the time an instance is launched until it is stopped or deleted. Partial instance hours are billed in one-second increments, but there is a 10-minute minimum charge following a billable status change such as creating, modifying, or deleting an instance.
Compare this with MongoDB Atlas, which has a perpetual free tier and starts at $9/mo for shared clusters, and around $60/mo for dedicated clusters.
The pricing comparison below is based on a default 3-node DocumentDB and MongoDB Atlas cluster, with backup storage equal to cluster storage. MongoDB Atlas is 8% to 19% less expensive.
| Atlas price (per mo.) | DocumentDB price | % difference | |
|---|---|---|---|
| 15.25 GB RAM / 80 GB storage | $567.46 | $614.63 | 8.31% |
| 30.5 GB RAM / 160 GB storage | $1,086.73 | $1,229.26 | 13.12% |
| 61 GB RAM / 320 GB storage | $2,147.20 | $2,458.52 | 14.5% |
| 122 GB RAM / 750 GB storage | $4,143.36 | $4,928.04 | 18.94% |
| 244 GB RAM / 1.5 TB storage | $8,277.95 | $9,856.08 | 19.06% |
| 488 GB RAM / 3 TB Storage | $16,544.97 | $19,712.16 | 19.14% |
*Pricing correct as of September 2020
MongoDB Atlas is available via the AWS Marketplace, providing streamlined procurement along with all other AWS services. Buying Atlas through the Marketplace enables customers to benefit from:
Consolidated billing through their AWS account
Retirement of their Amazon Enterprise Discount Program commitment
Simplified procurement with just a few clicks
Integration with AWS Marketplace catalogs and reports
A designated advisor from the AWS Marketplace team