Apache IoTDB vs Datacake

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.

Datacake is an IoT platform that turns sensor data into live dashboards, alerts, and reports. Its monitoring use cases include cold chains, temperature and humidity, indoor air quality, soil moisture, and industrial noise. Users can build real-time dashboards without coding and set thresholds and rules that send alerts by email, SMS, or webhook. Datacake lists more than 400 LoRaWAN device templates across over 125 manufacturers, with payload decoders and dashboards. Every plan includes its managed LoRaWAN Network Server, with unlimited gateways and no per-gateway fees. Data can be streamed to other systems through MQTT, HTTPS webhooks, and a REST API. Native iOS and Android apps support dashboards, device onboarding, alert creation, and push notifications. Its OpenAI-powered assistant can analyze sensor data and help create dashboards, rules, and decoders; changes require confirmation. White-label branding and multi-tenancy are offered for system integrators, distributors, and OEMs. The free plan supports five devices. Hobby costs €25 a month and covers up to 25 devices, with one year of retention.