Template-based app starts
Choose from more than 80 designer templates, including portfolios, landing pages, and storefronts, or begin with a blank canvas.
Capacity Desktop
Capacity Desktop is an AI app builder for Mac and Windows. Create web, mobile, and desktop apps and games with plain English, live preview, version history, GitHub, and Vercel.
AI app building from the desktop
Capacity Desktop is a desktop AI app builder for creating web, mobile, and desktop applications and games from a Mac or Windows computer. Users can select a designer template or blank canvas, describe what they want in plain English, and see the application take shape locally with a live preview.
The product is designed around user ownership: the app and code remain on the computer, projects can be pushed to the user’s own GitHub and Vercel accounts, and the page says users can connect their own AI subscriptions rather than buying marked-up credits. Capacity also saves project versions throughout the build so users can review or undo changes before publishing.
Key features
AI planning and building
Describe a feature in plain English. Capacity creates a readable plan before building it, giving you an opportunity to review the intended change.
Built-in live preview
Run the app inside Capacity as it is being built and watch changes appear in the integrated live preview without switching between tabs.
GitHub and Vercel publishing
The guided setup can connect a project to GitHub and Vercel. Capacity checks production settings, pushes the code, and follows the deployment to the app’s live URL.
Version history and restore
A snapshot is saved after every AI step. Project history lets you restore an earlier version in one click without removing newer work.
Bring-your-own AI accounts
Connect your own Claude, GPT, Gemini, Grok, DeepSeek, Kimi, or other supported AI accounts, switch models by task, and see spending in a built-in dashboard.
Use cases
Launch a first web project
Start with a portfolio, landing-page, or storefront template, then describe the desired content and behavior while Capacity adapts the design and shows the result in its preview.
Prototype an MVP
Use the plain-English planning step and local build workflow to turn an app concept into a working MVP before publishing it to a Vercel URL.
Explore app formats beyond the web
Create a mobile or desktop app from the same builder, using the lifetime plan’s listed mobile and desktop app templates where those starting points fit the project.
Safely refine an application
Iterate on an existing build with saved snapshots: test AI-generated changes, compare project history, and restore an earlier version when a direction is not useful.
Prepare a handoff or owned deployment
Keep development assets under personal accounts by connecting an own GitHub repository and Vercel project, making it possible to open the code in another editor or hand it to a developer.
Pros and Cons
Pros
- Supports web, mobile, and desktop apps plus games from one desktop workflow.
- Uses more than 80 templates and a blank canvas to provide different starting points.
- Shows a readable plan before implementation and includes a live preview during building.
- Keeps code in the user’s environment and supports publishing through the user’s GitHub and Vercel accounts.
- Provides per-step snapshots and one-click restoration for safer iteration.
Cons
- The page says macOS is available today and Windows is coming soon, so Windows access is not yet available according to the supplied evidence.
- Building depends on connecting an external AI subscription; the product does not provide the AI model usage itself.
- The documented publishing workflow centers on GitHub and Vercel; broader integration coverage is not specified.
FAQ
How much does Capacity Desktop cost?
The page offers a free plan with no credit card required. It also lists a $249 one-time lifetime license with unlimited projects, mobile and desktop app templates, complete-app templates, custom domains, and future features. The separate Capacity pricing page lists credit-based plans for another Capacity offering, so those plans should not be assumed to apply to Capacity Desktop.
Which operating systems are supported?
The page states that macOS is available today and Windows is coming soon. The download call to action currently specifies Mac.
What is the basic workflow?
You can start with a designer template or blank canvas, describe the app in plain English, review a plain-English plan, and let Capacity build it locally while the live preview updates. A guided setup connects GitHub and Vercel, and the Publish tab checks production settings before deployment.
Which AI models can I use?
Capacity Desktop connects your own AI accounts, with the page naming Claude, GPT, Gemini, Grok, DeepSeek, Kimi, and more. You pay the provider directly, while Capacity provides a dashboard showing spending.
What happens if an AI change breaks my app?
The app saves a snapshot after every AI step. If a change causes a problem or you prefer an earlier version, you can restore a previous version in one click; newer work is not deleted by a restore.
Quick Facts
- Category
- AI app builder / developer tool
- Primary platform
- Desktop app; macOS available, Windows coming soon
- Build targets
- Web, mobile, desktop apps, and games
- Publishing workflow
- User-owned GitHub and Vercel projects
- AI model access
- Bring your own subscriptions; Claude, GPT, Gemini, Grok, DeepSeek, Kimi, and more are named
- Desktop pricing shown
- Free plan; $249 one-time lifetime license
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