Apache IoTDB vs OpenRemote

Apache IoTDB is an open-source industrial IoT time-series database for collecting, storing, managing, and analyzing device data across edge and cloud deployments. The project describes high-speed writes for millions of networked devices alongside fast reads. Query features include aligning time across devices and sensors, time-series computation, and aggregation by time dimensions. Ingestion options include IoTDB-SQL, JDBC, Java, C++, Python, and Go native APIs, REST, MQTT, CSV, and TsFile. Named analysis ecosystem examples include Hadoop, Spark, Flink, and Grafana. Deployment options include cloud installation, a desktop terminal tool, and synchronization between cloud and on-premise machines. The REST service is disabled by default and uses Basic Authentication except for the health check endpoint. Data and cluster permissions can be managed through users, roles, and privileges. The homepage states disk storage can cost less than $0.23 per GB. The project lists energy, aerospace, transportation, steel, and other IoT scenarios. Its JDBC documentation cautions that insert operations may not provide high-performance writing and recommends the Java Native API for Java applications.

OpenRemote is an open-source IoT platform for bringing different protocols and data sources into one management system. Users define asset types and the attributes they want to track, then create automations with When-Then rules, a visual Flow Editor, or Groovy scripting. Its dashboard builder supports live monitoring, historical trend analysis, and alerts when attributes pass thresholds. Built-in protocol agents include HTTP, SNMP, ModBus, MQTT, Bluetooth, LoRaWAN, Serial, TCP, UDP, KNX, Velbus, and openWeather. Assets and attributes are accessible through a unified REST API and WebSockets. Keycloak provides OAuth2/OpenID Connect and role-based access control; Realms logically isolate users and data. Through Hawkbit integration, the platform supports edge-device firmware updates and security patch rollouts. OpenRemote is designed for professional integrators, including manufacturers, system integrators, and governments. It uses a container-first approach and offers Docker Compose deployment for its manager, database, identity service, and map server. The code is licensed under AGPLv3, with commercial licenses available for organizations seeking an exemption from the stated source-sharing obligation. Community support is included with the free option.