
CostOS Estimating
Advanced estimating software for construction projects, integrating 2D, 3D, and BIM data.
Updated: March 2026
Essential tools for independent professionals and consultants. Manage clients, projects, and finances efficiently. We've curated 5 tools specifically suited for freelancers.

Advanced estimating software for construction projects, integrating 2D, 3D, and BIM data.

Capture, manage, and share 360° photo documentation for construction projects.

Open-source solid modeling system for unambiguous 3D geometry and high-performance ray-tracing.
Based on our analysis, CostOS Estimating is the top choice for freelancers, with a score of /100.
Yes! CostOS Estimating, iFieldSmart, Dalux offer free plans suitable for freelancers.