Cloudant vs RavenDB

What Cloudant is

IBM Cloudant is a proprietary managed JSON document database built on Apache CouchDB, with a compatible HTTPS API and replication protocol. The Lite plan is free for evaluation and fixes capacity at 20 reads, 10 writes and five global queries per second with 1 GB storage. Standard begins at one provisioned capacity block—100 reads, 50 writes and five global queries per second—includes 20 GB and bills capacity plus excess storage hourly. Dedicated Hardware adds workload isolation, private networking and selected compliance and key-management options. A Cloudant service is not the same as self-hosting CouchDB.

What RavenDB is

RavenDB is a distributed document database with native clients, HTTP APIs, indexing, transactions, replication, subscriptions and an administration Studio. It can run self-hosted under license-specific feature and resource limits or as RavenDB Cloud. Free Developer, Community and Cloud options have important production, version, node, SLA and inactivity constraints; production architecture still requires explicit capacity, security, backup and recovery design.

What Cloudant is built to do

JSON document database

Stores schema-flexible documents, attachments and secondary indexes behind HTTPS APIs.

CouchDB-compatible replication

Supports replication patterns between Cloudant regions and compatible CouchDB systems.

Provisioned throughput

Scales read, write and global-query capacity in linked blocks through the dashboard or API.

IBM IAM and SDKs

Integrates IBM Cloud access controls and provides supported Java, Node.js, Python, Swift, Go and mobile clients.

What RavenDB is built to do

Document sessions

Provides unit-of-work change tracking, identity mapping, query and atomic batched writes through native clients.

Indexes and queries

Builds dynamic or static indexes for document queries and projections.

Clusters and replication

Replicates database items across a group and supports single-node or cluster-wide transaction modes.

Backup and restore

Schedules full or incremental logical backups and snapshots with compression, retention and encryption options.

Choose Cloudant if

• Offline or distributed applications that benefit from CouchDB-style replication
• JSON workloads dominated by key lookups and well-designed partitioned queries
• Teams able to test request-class capacity, 429 handling and multi-region conflicts

Skip Cloudant if

• The application depends on relational joins, broad ad-hoc SQL or multi-document ACID transactions
• Traffic is too unpredictable to provision and monitor request-class capacity
• A free Lite instance is being treated as a production SLA or scalable datastore

Choose RavenDB if

• Document-centric applications benefiting from native unit-of-work clients and server-side indexes
• Systems that need replication, subscriptions and integrated database administration
• Teams choosing managed Cloud or capable of operating secure self-hosted clusters

Skip RavenDB if

• A relational model and SQL ecosystem are mandatory and no document-model pilot has been completed
• The intended free license or cloud node does not permit the production topology and features
• The team cannot operate certificates, upgrades, storage monitoring, backups and restore drills

Cloudant: pros & cons

• Managed document service: IBM handles database servers, upgrades, patching and core high-availability infrastructure.
• CouchDB lineage: Compatible HTTP APIs and replication ease selected CouchDB application and migration patterns.
• Explicit capacity model: Read, write and global-query throughput are provisioned in documented blocks.
• Multi-region option: Application-managed replication can support active-active regional architectures.
• Lite is evaluation capacity: It cannot scale and blocks new writes above its storage limit.
• Capacity dimensions scale together: A workload dominated by one request class may pay for unused allowances in the others.
• Exceeding throughput returns 429: Applications need retry, backoff and load testing rather than assuming automatic unlimited scale.
• Cross-region is not automatic application resilience: Conflict behavior, traffic routing, monitoring and recovery remain design responsibilities.

RavenDB: pros & cons

• Document-oriented client model: Sessions track changes, batch writes and persist SaveChanges as a single ACID transaction.
• Distributed operation: Database groups replicate documents and related items across nodes with conflict policies.
• Deployment choice: Teams can self-host clusters or use managed Free, Development, Production and Serverless cloud products.
• Built-in operations: Studio and APIs cover indexing, backup, subscriptions, changes, ETL and administrative tasks.
• License-specific behavior: Developer is non-production, Community requires the latest major version, and paid editions unlock different features and limits.
• Free Cloud is not production-grade: It is single-node, has no SLA, uses monthly credit and can be terminated after inactivity.
• Operational complexity: Self-hosted clusters require certificate, topology, storage, monitoring, upgrade and recovery expertise.
• Backups need capacity and drills: Undersized cloud products can fail backup jobs, and configured backups must be restored in testing.