Fenestra vs Harth
Fenestra
fenestra.appHarth
harth.buildSide by side
| Figure | Fenestra | Harth |
|---|---|---|
| Price from | $8/mo | $59/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 5 | 6 |
| Spec score · AI Architectural Rendering Software | 7.5 (#17) | 7.9 (#8) |
| Privacy | The pricing page says Pro, Studio, and Team are private by default and that Fenestra does not train on customer data; the FAQ says data is stored securely and not shared with third parties. | 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. |
| Product | Fenestra turns sketches, CAD drawings, photos, and 3D models into architectural renders and animations in a browser-based studio. | Harth is a browser-based workspace for architecture practices to design, research, collaborate, and present projects, with AI agents working on building data. |
Plans
Fenestra
- Individual$8 a month
- Pro$28 a month
- Studio$48 a month
- Team$208.33 a month
- EnterprisePriced on request
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
Fenestra
Fenestra is a browser-based studio that turns architectural sketches, CAD drawings, photos, and 3D models into renders and animations. It accepts prompts and uploads including JPG, PNG, WEBP, PDF, GLB, FBX, and 3DM, with workflows for Revit, Rhino, and SketchUp. Users can create, edit, enhance, and animate designs through natural-language prompts and cinematic presets. Realtime image generation runs at 15+ FPS while the camera, prompts, or styles change. Its Video tool turns a still render, sketch, or photo into a flythrough using pan, dolly, or orbit moves. The homepage advertises 71 AI models for image, editing, and video work. Fenestra runs entirely in a browser without a plugin, render-engine setup, or dedicated GPU. A free plan is available; Individual costs $8 a month when billed yearly, with 200 credits monthly. Pro, Studio, and Team add credits and collaboration features, while Enterprise uses unlisted pricing. Pro, Studio, and Team are private by default, and Fenestra says it does not train on customer data.
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.