ArchSynth vs Harth
ArchSynth
archsynth.comHarth
harth.buildSide by side
| Figure | ArchSynth | Harth |
|---|---|---|
| Price from | $9.99/mo | $59/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 7 | 6 |
| Spec score · AI Architectural Rendering Software | 8.8 (#3) | 7.9 (#8) |
| Privacy | The privacy policy says uploaded images are stored on Cloudflare and Google Cloud, with its database hosted on Google Cloud in North America. | Harth NZ Limited says its privacy policy takes account of the New Zealand Privacy Act 2020 and Australian Privacy Act 1988, and describes rights for EU and UK individuals under GDPR. |
| Support | The official contact page directs users to the Help Center for setup, feature, refund, and technical support. | The Free plan includes community support, Plus includes email support, and Pro includes priority support. |
Plans
ArchSynth
- Basic$9.99 a month
- Student$16 a month
- Pro$29 a month
- Pro$41 a month
- Premium$49 a month
- Business$167 a month
- Business$199 a month
Harth
- FreeFree
- Plus$59 a month
- Small credit pack$99, paid once
- Pro$149 a month
- Medium credit pack$199, paid once
- Large credit pack$399, paid once
In their own words
Harth
Harth is a browser-based workspace for architecture practices to design, research, collaborate on, and present projects, with AI agents working on building data. It imports Revit, Archicad, SketchUp, and IFC models while preserving elements and coordinates. About 40 discipline-specific agent skills address areas such as structure, envelope, interiors, and analysis. For site context, it offers 3D satellite terrain, nearby-building imports, boundary tracing, geolocation, and sun studies. Users can render a model view, apply masking and lighting presets, and upscale images for print. Teams can work together using live cursors, presence, threaded comments pinned over 3D, and project voice. Harth also converts 360-camera footage into an explorable, measurable 3D scan, with processing stated at one to two days. Exports include PDF, image, and 3D files, 360-degree views, and recorded walkthroughs. All plans include the full workspace and differ by AI usage; monthly credits can be topped up with packs. Free includes 700 credits per month; Plus is $59 per month for 5,000 credits, and Pro is $149 per month for 15,000.