Actian Zen vs CUBRID

Actian Zen is an embedded database for managing data from edge devices through on-premises and cloud applications. Its lightweight engine combines relational storage, native vector search, semantic queries, and connectivity for AI agents. Vector search supports up to 1 million vectors, while hybrid queries combine relational filters with semantic similarity. A native MCP server allows agents such as ChatGPT, Claude, and Gemini to query local data. Zen supports SQL through ODBC and JDBC, and NoSQL through Btrieve and Btrieve 2 APIs. Semantic search, vector queries, and agent workflows can run offline, including in air-gapped environments. Zen Enterprise is designed for embedded, on-premises, and cloud deployments, including branch and remote field settings, and supports Windows, Linux, macOS, Intel, ARM, VMware, Hyper-V, and Docker. Zen Mobile supports Android and iOS with AES 256-bit encryption for stored data. Edge supports over 100 concurrent users; Enterprise is designed for thousands. A 30-day trial is available, with paid pricing from $417/mo (annual).

CUBRID is a free, self-hosted object-relational database management system for Internet data services. Its architecture combines a database server, a broker, and CUBRID Manager. Transactions support commit, rollback, and savepoints, with locking and logging for consistency. Backup methods include online, offline, and incremental options, while recovery can be partial or full. CUBRID HA synchronizes data between servers and can fail over when a master node fails, although the HA feature supports Linux only. The database supports read replicas and JSON data. Security documentation covers TLS-encrypted client connections, access control, authorization, and transparent data encryption. Interfaces listed include CCI, JDBC, PHP, ODBC, OLE DB, ADO.NET, Ruby, Python, and Node.js. Downloads include CUBRID Manager and the CUBRID Migration Toolkit. Installation documentation lists Windows and 64-bit Linux, requiring at least 1 GB of memory and 2 GB of disk space. The engine is listed at free.