GroundUI vs SpinBuild

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

GroundUI compared with SpinBuild
Detail	GroundUI	SpinBuild
What it does	Real mobile app screens with source code for AI coding agents	AI platform for building websites and web apps from plain-language descriptions
Stage	Not given	Not given
Founded	Not given	Not given
Based in	IN	Not given
Pricing model	Freemium	Freemium
Pricing	Free: browse library and agent briefs. Pro: $9/month billed yearly ($108/year) or $15/month, includes source code in four frameworks and MCP server. Lifetime: $199 one-time payment, includes everything in Pro plus GitHub repository access and all future updates.	Starter plan is free forever with no credit card required. New accounts get 250 welcome credits for the first month. Paid plans available with monthly credits that reset on the first of each month and do not roll over. Cost depends on the AI model chosen, thinking level, and work required per reques
Key features	Source code in SwiftUI, Flutter, React Native and Kotlin Editable source code that lives in your repository Website blocks for React and Tailwind coming soon	Support for 11 stacks: Next.js, React, Vue, Svelte, Astro, Preact, Vite, Express, Fastify, Koa, HTML/CSS/JS Choice of AI models in one dropdown including Claude Opus, Claude Sonnet, GPT and hundreds of others Live preview that updates as code is written Code review with per-file approval and diffs One-way sync to GitHub repository you own Private Postgres database per project One-click HTTPS deployment MCP support for Cursor, Codex, Claude Code, Grok Build Kernel-isolated containers for app security Version history with rollback to any previous state
What makes it different	Code lives in your repository with no package dependencies or lock-in One-time Lifetime payment option as alternative to monthly subscription	Vibe coding: describe what you want instead of writing every line yourself Real full-stack apps with live preview, not just mockups or templates Your code in a GitHub repo you own, yours to keep and run elsewhere Switch AI models in one dropdown to balance speed, capability and cost
Community votes	0	0
DR (Domain Rating by Ahrefs)	3 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	1
Citation Flow (Majestic)	0	20
Referring domains (Majestic)	0	3

5 details filled in for both companies.

More alternatives to GroundUI More alternatives to SpinBuild