# Is Modo free to use?

Modo offers both free and paid options:

**Free Features:**

- Generate unlimited build designs
- View all artifacts (BOM, CAD preview, wiring, firmware, instructions)
- Preview 3D models in the browser
- Share builds publicly
- Browse community builds for inspiration

**Paid Features ($5 per build):**

- Download STL files for 3D printing
- Download firmware source code
- Export bill of materials with DigiKey links
- Get step-by-step assembly PDF
- Access to validation reports

**Why This Model?**  
Modo's pay-per-build model means:

- No subscription fees or monthly commitments
- You only pay for builds you actually want to make
- $5 is significantly cheaper than design services ($50-500+)
- Supports continued AI development and part database maintenance

**Cost Comparison:**

- Hiring an engineer: $50-100/hour
- Commercial PCB design: $100-500
- Generic project tutorials: Often incomplete
- **Modo**: $5 for complete, customized design

Most users find that Modo saves 10-20 hours of design work per project, making the $5 cost an excellent value.