Apache IoTDB

Apache IoTDB is an open-source time-series database designed for IoT and industrial data. It is a project of the Apache Software Foundation and is licensed under Apache-2.0, an open-source licence. It is run self-managed, either as a standalone service or as a cluster, and the project itself offers no commercial edition. The latest release is v2.0.11, dated 11 September 2026, which is on the 2.x line. The software is free to use, so cost depends on the infrastructure it is run on, and anyone who needs commercial support will need to look for a third-party provider, since none comes from the project. IoTDB suits organisations that collect large volumes of device and sensor readings and want an open-source database built with that kind of data in mind, under the governance of a foundation rather than a single vendor. Buyers evaluating it should consider whether their team can operate a self-managed database, because no managed service is offered by the project itself. The project shows as active, with a release in September 2026. It is a database in its own right, not an extension to another database or a monitoring tool.