# Apache CouchDB vs ScyllaDB

| Attribute | Apache CouchDB | ScyllaDB |
|---|---|---|
| **Vioscale score** | 54.4 (35% (low)) | 55.1 (51% (medium)) |
| activity.commits_last_30d | 26 | 100 |
| adoption.dependent_repos | 0 | - |
| adoption.github_stars | 6,942 | 15,723 |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | An open-source document database built for distributed deployments with native replication capabilities. It enables offline-first applications to maintain data synchronization across servers, mobile devices, and browsers without manual configuration. | A NoSQL database engineered for applications requiring extreme performance at scale, delivering single-digit millisecond latency with millions of operations per second, commonly used for AI workloads, feature stores, and vector search. |
| features.capabilities | `{"hosting":"both","data_model":"document","consistency":"eventual","replication":"leaderless","multi_region":true,"partitioning":"automatic","license_class":"permissive","change_streams":true,"secondary_indexes":"yes"}` | `{"schema":"enforced","hosting":"both","data_model":"wide_column","consistency":"tunable","replication":"primary_secondary","multi_region":true,"partitioning":"automatic","vector_search":true,"query_language":"cql","secondary_indexes":"yes"}` |
| integrations.count | - | 4 |
| integrations.list | - | `[{"name":"DynamoDB (Alternator API compatibility)"},{"name":"Kubernetes (ScyllaDB Operator)"},{"name":"AWS"},{"name":"GCP"}]` |
| language.primary | Erlang | C++ |
| license.spdx | Apache-2.0 | - |
| market.availability | - | `{"hqCountry":"IL","primaryMarkets":["US","EU"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"ios":true,"web":true,"android":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://couchdb.apache.org","retrievedAt":"2026-08-14T11:09:10.445Z"}` | `{"type":"subscription","plans":[{"free":false,"name":"Standard","summary":"Industry-leading performance, 2 Hour P1 support","features":["Fully managed on AWS & GCP","High-throughput low-latency","Vector Search","Auto-scaling storage & compute","SOC2, ISO certifications","99.9% uptime SLA","2 Hour P1 Support response"],"description":"Industry-leading performance for data-intensive apps","contactSales":false},{"free":false,"name":"Professional","summary":"Enterprise-grade scalability, 1 Hour P1 support, 24x7","features":["All Standard features","1 Hour P1 Support response","24x7 support","Bring Your Own Account","Multi-region active-active HA/DR","Advanced metrics and logging","Dedicated Slack channel"],"description":"Enterprise-grade scalability & support","contactSales":false},{"free":false,"name":"Premium","summary":"Premium support with 15 minute P1 response, custom deployment","features":["All Professional features","15 minutes P1 Support response","24x7 support","Bring Your Own Encryption Key","Advanced networking (Private Link)","Advanced network compression","Flexible region switching","Dedicated Technical Account Manager"],"description":"Custom security, networking & deployment","contactSales":true}],"summary":"Subscription-based cloud tiers (Standard, Professional, Premium) with usage calculator. Exact pricing not disclosed on public pages.","freeTier":false,"sourceUrl":"https://www.scylladb.com","retrievedAt":"2026-08-05T13:26:38.962Z"}` |
| pricing.free_tier | yes | no |
| pricing.model | commercial | commercial |
| pricing.price_level | free | unknown |
| pricing.transparent | yes | no |
| reliability.sla_pct | - | 99.9 |
| security.disclosure_policy | - | yes |
| security.gdpr | - | yes |
| security.iso27001 | - | yes |
| security.pci | - | yes |
| security.scorecard | 7.2 | - |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=conda&package_name=couchdb&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (NoSQL Databases)

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

*Source: Vioscale. Generated 2026-09-01T17:24:02.450Z. "-" = undocumented, not absent.*