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
Convenience of a Single AWS Bill
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