# Apache Cassandra vs RethinkDB

**Leader by vioscaleAI score:** Apache Cassandra

| Attribute | Apache Cassandra | RethinkDB |
|---|---|---|
| **vioscaleAI score** | 51.9 (40% (low)) | 40.7 (57% (medium)) |
| activity.commits_last_30d | 100 | 0 |
| adoption.dependent_repos | 0 | 1,283 |
| adoption.github_stars | 10,112 | 27,005 |
| adoption.package_downloads_weekly | - | 12,928 |
| content.faq | `[{"answer":"An open-source database platform designed for storing and querying massive datasets across distributed server clusters, with built-in fault tolerance and the ability to survive entire data center outages. It is indexed under NoSQL Databases.","source":"https://cassandra.apache.org","question":"What is Apache Cassandra?","confidence":0.6},{"answer":"Apache Cassandra is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://cassandra.apache.org","question":"Is Apache Cassandra free to use?","confidence":0.6},{"answer":"Apache Cassandra supports Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://cassandra.apache.org","question":"What platforms does Apache Cassandra support?","confidence":0.6},{"answer":"Yes. Apache Cassandra can be deployed cloud / SaaS, hybrid, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://cassandra.apache.org","question":"Can Apache Cassandra be self-hosted?","confidence":0.6},{"answer":"We have confirmed 26 integrations for Apache Cassandra, including Amazon Keyspaces, Azure Cosmos DB, Azure Managed Instance for Apache Cassandra, DataStax Astra, Elassandra, Instaclustr, Docker and DataStax Studio, plus 18 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://cassandra.apache.org","question":"What does Apache Cassandra integrate with?","confidence":0.6},{"answer":"Yes. Apache Cassandra is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/apache/cassandra","question":"Is Apache Cassandra open source?","confidence":0.95}]` | `[{"answer":"An open-source NoSQL database built on a distributed architecture that eliminates polling by pushing fresh data to applications automatically. It stores flexible JSON documents and is designed to simplify building applications that display live information to users. It is indexed under NoSQL Databases.","source":"https://rethinkdb.com","question":"What is RethinkDB?","confidence":0.6},{"answer":"RethinkDB is open source, so it can be self-hosted and used at no licence cost. Pricing changes often, so verify at source before relying on it.","source":"https://rethinkdb.com","question":"Is RethinkDB free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to RethinkDB. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://rethinkdb.com","question":"What platforms does RethinkDB support?","confidence":0.6},{"answer":"Yes. RethinkDB can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://rethinkdb.com","question":"Can RethinkDB be self-hosted?","confidence":0.6},{"answer":"We have confirmed 4 integrations for RethinkDB, including Elasticsearch, RabbitMQ, Rails and PubNub. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://rethinkdb.com","question":"What does RethinkDB integrate with?","confidence":0.6}]` |
| deployment.options | `{"cloud":true,"hybrid":true,"on_prem":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A free distributed database system that automatically distributes data across machines and data centers, providing resilience against node and data center failures. | A database that eliminates polling by automatically streaming query changes to connected clients, enabling developers to build responsive real-time applications with less complexity. |
| features.capabilities | `{"schema":"enforced","hosting":"both","data_model":"wide_column","consistency":"tunable","replication":"leaderless","sql_support":true,"multi_region":true,"partitioning":"automatic","transactions":"single_item","license_class":"permissive","managed_cloud":true,"query_language":"cql","full_text_search":true,"secondary_indexes":"yes","horizontal_scaling":true}` | `{"schema":"schemaless","hosting":"self","data_model":"document","replication":"primary_secondary","license_class":"permissive","change_streams":true,"secondary_indexes":"yes"}` |
| integrations.count | 17 | 4 |
| integrations.list | `[{"name":"Amazon Keyspaces"},{"name":"Azure Cosmos DB"},{"name":"Azure Managed Instance for Apache Cassandra"},{"name":"DataStax Astra"},{"name":"Elassandra"},{"name":"Instaclustr"},{"name":"Docker"},{"name":"DataStax Studio"},{"name":"AxonOps"},{"name":"Cassandra Lucene Index"},{"name":"Elasticsearch"},{"name":"Prometheus"},{"name":"DbVisualizer"},{"name":"Apache Ignite"},{"name":"Ansible"},{"name":"Lagom"},{"name":"EmoDB"},{"name":"FiloDB"},{"name":"CQLAI"},{"name":"DBeaver","native":false,"category":"tools"},{"name":"Apache NiFi","native":false},{"name":"JanusGraph","native":false,"category":"graph"},{"name":"Stargate","native":true,"category":"api","direction":"inbound"},{"name":"K8ssandra","native":true,"category":"kubernetes"},{"name":"Cassandra Index","native":true,"category":"search"},{"name":"Lenses","native":false}]` | `[{"name":"Elasticsearch"},{"name":"RabbitMQ"},{"name":"Rails"},{"name":"PubNub"}]` |
| language.primary | Java | C++ |
| license.spdx | Apache-2.0 | - |
| platform.support | `{"cli":true}` | `{"mac":true,"web":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://cassandra.apache.org","retrievedAt":"2026-09-07T08:32:30.799Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://rethinkdb.com","retrievedAt":"2026-10-13T22:31:08.485Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| release.cadence_days | - | 25 |
| release.history | - | `[{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.4.4","date":"2023-12-11T01:42:50Z","type":"stable","version":"v2.4.4"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.4.3","date":"2023-02-05T01:14:53Z","type":"stable","version":"v2.4.3"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.4.2","date":"2022-05-07T19:28:23Z","type":"stable","version":"v2.4.2"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.4.1","date":"2020-08-14T19:51:04Z","type":"stable","version":"v2.4.1"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.4.0","date":"2019-12-19T18:30:54Z","type":"stable","version":"v2.4.0"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.3.6","date":"2017-07-23T02:20:28Z","type":"stable","version":"v2.3.6"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.3.5","date":"2016-08-29T21:19:52Z","type":"stable","version":"v2.3.5"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.3.4","date":"2016-06-04T05:27:48Z","type":"stable","version":"v2.3.4"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.3.3","date":"2016-06-01T18:54:14Z","type":"stable","version":"v2.3.3"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.3.2","date":"2016-05-06T19:00:05Z","type":"stable","version":"v2.3.2"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.3.1","date":"2016-04-23T02:13:43Z","type":"stable","version":"v2.3.1"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.3.0","date":"2016-04-06T15:57:30Z","type":"stable","version":"v2.3.0"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.2.6","date":"2016-03-28T18:08:01Z","type":"stable","version":"v2.2.6"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.2.5","date":"2016-02-24T23:33:36Z","type":"stable","version":"v2.2.5"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.2.4","date":"2016-02-01T19:17:04Z","type":"stable","version":"v2.2.4"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.1.6","date":"2016-02-01T19:14:47Z","type":"stable","version":"v2.1.6"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.2.3-1","date":"2016-01-11T20:22:20Z","type":"stable","version":"v2.2.3-1"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.2.2","date":"2015-12-21T09:02:59Z","type":"stable","version":"v2.2.2"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.2.1","date":"2015-11-17T09:14:41Z","type":"stable","version":"v2.2.1"},{"url":"https://github.com/rethinkdb/rethinkdb/releases/tag/v2.2.0","date":"2015-11-12T15:26:33Z","type":"stable","version":"v2.2.0"}]` |
| security.scorecard | 4.6 | 3.3 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fapache%2Fcassandra&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=rethinkdb&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (NoSQL Databases)

| Capability | Apache Cassandra | RethinkDB |
|---|:--:|:--:|
| **Core** |  |  |
| Data model | Wide-column | Document |
| **Query** |  |  |
| Query language | CQL | - |
| **Consistency** |  |  |
| Consistency | Tunable | - |
| **Transactions** |  |  |
| Transactions | Single-item | - |
| **Indexing** |  |  |
| Secondary indexes | Yes | Yes |
| **Scale** |  |  |
| Partitioning / sharding | Automatic | - |
| Multi-region | ✓ | - |
| **Replication** |  |  |
| Replication topology | Leaderless | Primary-secondary |
| **Deployment** |  |  |
| Hosting | Cloud + self-hosted | Self-hosted only |
| **Schema** |  |  |
| Schema | Enforced | Schemaless |
| **Features** |  |  |
| TTL / auto-expiry | - | - |
| Change streams / CDC | - | ✓ |
| Vector / search built-in | - | - |
| **Licensing** |  |  |
| Licence class | Permissive OSS | Permissive OSS |

*Source: vioscaleAI. Generated 2026-10-20T15:25:20.528Z. "-" = undocumented, not absent.*