head to head · open source
orm vs Apache IoTDB
orm has 47,640 GitHub stars, 2,538 forks, 2,627 open issues and last shipped 2 days ago. Apache IoTDB has 6,404 stars, 1,160 forks, 734 open issues and last shipped 2 days ago. orm leads on adoption by 644% (47,640 vs 6,404 stars). orm is written in TypeScript under Apache-2.0; Apache IoTDB is written in Java under Apache-2.0. orm has attracted 5% as many forks as stars, Apache IoTDB 18%. Apache IoTDB was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (database), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| orm | Apache IoTDB | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 6.4K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | Java |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 2.5K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick orm if
- You weight community size — 48K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Apache IoTDB if
- You want the Apache IoTDB feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and Apache IoTDB fits your workflow better
About orm
Prisma ORM is a next generation TypeScript ORM for Node.js and TypeScript applications, supporting PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB, and CockroachDB, and it is aimed at developers and teams building data backed applications in that ecosystem.
About Apache IoTDB
Apache IoTDB is an Apache 2.0 licensed time series database written in Java that handles collection, storage, and analysis of industrial IoT time series data, built for teams that must ingest high throughput readings from very large fleets of devices and analyse them without leaving the Hadoop and Spark tooling they already run.
read the full Apache IoTDB overview →
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Frequently asked questions
Is orm or Apache IoTDB more popular?
orm has 47,640 GitHub stars and Apache IoTDB has 6,404. orm has the larger community by that measure.
Are orm and Apache IoTDB free?
Both are open source. orm is licensed under Apache-2.0 and Apache IoTDB under Apache-2.0. Neither carries a licence fee.
What is the difference between orm and Apache IoTDB?
orm is written in TypeScript and Apache IoTDB in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, orm or Apache IoTDB?
Choose orm if you want the larger community (47,640 stars) or its Apache-2.0 licence terms. Choose Apache IoTDB if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.