Apache IoTDB vs Zoho IoT

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.

Zoho IoT is a low-code platform for building custom Internet of Things solutions and supporting mission-critical operations. It provides device management, AI analytics and reports, alerts and notifications, plus commands and controls. Pre-built accelerators address industrial IoT, energy management and smart buildings. Connectivity covers more than 40 protocols, including HTTPS, MQTT and BACnet. The platform integrates with Zoho and third-party applications, including out-of-the-box Zoho CRM support. Its REST API exchanges JSON over HTTPS, with daily call limits varying by plan. Included iOS and Android apps provide device monitoring, alerts, dashboards and remote commands. Security details include end-to-end encryption, multi-factor authentication, GDPR compliance, ISO standards and SOC compliance. A 30-day trial exposes most features with limitations, then switches automatically to the Free plan. Listed plans range from 25 to 500 devices, while Flex offers customized limits. The pricing page offers monthly and yearly billing, says annual billing saves up to 20%, but lists no plan prices.