# Massvai

> Turn a prompt into an exportable full-stack Next.js app with Supabase and Vercel deploy

- Category: [Coding AI](https://finderatlas.com/categories/coding-ai)
- Pricing: Freemium
- Website: https://massvai.com
- Platforms: Web, macOS
- Last updated: 2026-10-25
- FinderAtlas page: https://finderatlas.com/tools/massvai

## Overview

Massvai is an AI app builder that generates full-stack Next.js applications from a plain-language prompt. A coding agent plans the work, writes TypeScript and Tailwind code, and shows progress in a live preview, with optional Supabase for authentication and database, Stripe-ready billing UI, GitHub sync and a guided deploy to Vercel. Users can attach a screenshot or reference file to a prompt, review every generated file, and export the full codebase, so the project is not locked inside the platform.

## Key features

- Prompt-to-app generation
- Live preview
- Durable agent workspace
- Supabase integration
- GitHub sync and Vercel deploy
- Code export
- Screenshot and file references
- Desktop app

## Pricing

- **Free** ($0): Explore the workspace and build a first project without a card.
- **Builder** ($25/month): For solo builders shipping real MVPs.
- **Pro** ($49/month): For founders and teams building every week.

## Best for

- SaaS MVPs
- Internal tools
- Client websites that need an exportable Next.js codebase

## Who uses it

- Indie founders
- Developers
- Product teams
- Agencies

## Strengths

- Generates real, exportable Next.js and TypeScript code rather than a locked sandbox
- Built-in path from prompt to GitHub sync and Vercel deployment
- Free plan with no credit card required
- Clear published refund policy and legal pages
- Available on the web and as a macOS app

## Limitations

- Limited to the Next.js, Supabase and Vercel stack
- Token-based credit billing makes monthly cost hard to predict
- Windows app is not yet available and the macOS download appears to be unsigned
- The company behind the product is not named on the site, and the site links to an earlier "Old version" at another domain

## Not recommended for

- Projects on non-Next.js stacks
- Teams that need a Windows desktop app today
- Users who need native mobile apps

## Integrations

- GitHub
- Vercel
- Supabase
- Stripe

## FinderAtlas editorial scores (out of 10)

- Code Quality & Ownership: 7.8/10
- Ease of Use: 8/10
- Deployment Workflow: 7.8/10
- Stack Flexibility: 6.5/10
- Pricing Clarity: 6.8/10

## Alternatives

- [GitHub Copilot](https://finderatlas.com/tools/github-copilot): AI coding assistant for code completion, chat and cloud agents across IDEs, terminal and GitHub ([compare](https://finderatlas.com/compare/github-copilot-vs-massvai))
- [v0 by Vercel](https://finderatlas.com/tools/v0): Describe an app in plain language and get a working Next.js project to deploy ([compare](https://finderatlas.com/compare/massvai-vs-v0))
- [Lovable](https://finderatlas.com/tools/lovable): Describe an app in chat and get a working web app with backend ([compare](https://finderatlas.com/compare/lovable-vs-massvai))
- [Base44](https://finderatlas.com/tools/base44): Describe an app in plain language and get a working app with backend and hosting ([compare](https://finderatlas.com/compare/base44-vs-massvai))
- [Rork](https://finderatlas.com/tools/rork): Build native iPhone, Android and web apps by chatting with an AI agent ([compare](https://finderatlas.com/compare/massvai-vs-rork))
- [Replit](https://finderatlas.com/tools/replit): Describe an app in plain language and build, test and publish it in one browser workspace ([compare](https://finderatlas.com/compare/massvai-vs-replit))
- [Emergent](https://finderatlas.com/tools/emergent): Describe an app in plain language and get a hosted web or mobile product ([compare](https://finderatlas.com/compare/emergent-vs-massvai))
- [Bolt](https://finderatlas.com/tools/bolt-new): Describe an app or website in chat and publish it with built-in hosting and database ([compare](https://finderatlas.com/compare/bolt-new-vs-massvai))

## Recent updates

- 2026-10-25: The site offers macOS downloads for Apple silicon and Intel; version 1.0.30 was current on this date and Windows is l...

## FAQ

**Do I own the code Massvai generates?**

According to Massvai, yes. You can inspect and export every file, sync the repository to GitHub and use the Next.js code in your own workflow. The terms add that you are responsible for reviewing, testing and securing generated applications.

**Is there a free plan?**

Yes. The Free plan costs $0, needs no credit card and includes 100 welcome credits, live preview and code export. Paid plans are Builder at $25 per month and Pro at $49 per month.

**How do credits work?**

Credits are charged by actual model token usage, with rates configured per model. Subscriptions add credits each billing period, and the billing page shows usage and balance.

**What stack does Massvai generate?**

Next.js 15 with TypeScript and Tailwind CSS, with optional Supabase for authentication and database and Stripe for billing, and GitHub plus Vercel for source control and hosting.

**Is there a desktop app?**

There is a downloadable macOS app for Apple silicon and Intel Macs. The Windows version is marked as coming soon. The macOS download file name indicates an unsigned build.

**What is the refund policy?**

A first subscription charge can be refunded within 14 days if no more than 10% of that period's credits were used. Unintended renewals can usually be refunded if reported within 72 hours and no new-period credits were used.