Side by side
Altova UModel vs Astah UML
Both stand on uml modeling software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free trial Windows
UModel combines UML diagrams, code generation, and reverse engineering, with higher editions adding modeling standards and architecture capabilities. Compare edition features and one-time prices, or use the 30-day evaluation to assess the tool.
Visit Altova UModel Free plan LinuxMacWindows
Visit Astah UML The facts
| Altova UModel | Astah UML | |
|---|---|---|
| Free plan | A free trial | Yes |
| Open source | Not published | Not published |
| Runs on | Windows | Linux, Mac, Windows |
| Lowest paid plan | UModel 2026 Basic Edition: $209, paid once | Not published |
| Plans published | 3 | None |
| Maker | Not published | Not published |
| Website | altova.com | astah.net |
| On uml modeling software | #20 of 26 | #16 of 26 |
Altova UModel: what it does well
- Supports all 14 UML diagram types.
- Generates code in four listed languages.
- Supports model and code round-trip synchronization.
- Projects can be edited simultaneously as subprojects.
- Fully enabled 30-day evaluation is available.
What to know first
- No free plan is listed.
- Windows desktop software only.
- Basic Edition costs $209, paid once.
- The evaluation license is requested after download and installation.
Astah UML: what it does well
Alternatives to Altova UModel Alternatives to Astah UML The whole list