Compare software

RethinkDB vs MongoDB: catalog facts
RethinkDB	MongoDB
Free Free and open source under the Apache 2.0 licence.	Freemium Community Server is free to download; the managed Atlas service is paid.
Windows, macOS, Linux, Self-hosted	Windows, Self-hosted
Changefeeds push live query updates to apps Built-in sharding and replication	Flexible document model without a fixed schema Aggregation, transactions, text, vector and geospatial queries
Releases are infrequent ReQL query language takes time to learn	Server Side Public License is source-available, not open source Homepage and newer features focus on the paid Atlas service
Downloadable app, Self-hosted	Downloadable app, Self-hosted, Hosted service
Open source	Closed source
License: Apache-2.0	License: SSPL-1.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.