Side by side
CostX vs OpenConstructionERP
Both stand on construction estimating software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWindows
Choose CostX if you need drawing-based takeoff and estimating with linked workbooks, tender outputs, or subcontractor comparison. If your work requires BIM quantities or auto-revisioning, the full platform is needed beyond CostX Core.
Visit CostX
Free plan Open source APILinuxMac+3
OpenConstructionERP brings estimating, project workflows, planning and data exchange together, with a free self-hosted option. Check whether the listed desktop requirements and any paid add-ons fit your deployment needs.
Visit OpenConstructionERPThe facts
| CostX | OpenConstructionERP | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | API, Windows | API, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Not published | Priority SLA: €1,200 a year |
| Plans published | None | 11 |
| Maker | Not published | Not published |
| Website | costx.co.za | openconstructionerp.com |
| On construction estimating software | #6 of 29 | #2 of 29 |
CostX: what it does well
- Takes off quantities from scanned, PDF, CAD, and other 2D drawings.
- Generates quantities from BIM or 3D models.
- Links workbooks to drawings and data repositories.
- Compares drawing revisions and highlights design changes.
- Free Viewer supports read-only project review and tender pricing.
What to know first
- Pricing is available on request.
- CostX Core does not include BIM or auto-revisioning.
- Listed platforms are API and Windows.
OpenConstructionERP: what it does well
- Free self-hosted plan under AGPL-3.0.
- BOQ tools include assemblies and automatic markups.
- Documents 120,000+ cost items.
- Supports quantity extraction from four listed file types.
- Includes Gantt planning and Monte Carlo simulation.
What to know first
- DDC converters are listed at €1,800 per year.
- Commercial licence is €2,500 one-time.
- Desktop downloads list specific operating system requirements.
Alternatives to CostX Alternatives to OpenConstructionERP The whole list