Why does Bolt have issues on Safari?

Bolt uses WebContainers to run Node.js in the browser. Safari has stricter security policies around SharedArrayBuffer and cross-origin isolation, which can cause WebContainers to fail or behave unexpectedly. Server-side preview tools like VULK avoid this issue entirely.

Can Bolt generate mobile apps?

Bolt generates web applications only. It cannot create Flutter, React Native, or native mobile apps. For mobile development, VULK offers Flutter APK/iOS export, and FlutterFlow provides a visual Flutter builder.

Yes, Bolt has a free tier with a generous token allowance for basic usage. Paid plans start at $25/mo for more tokens, faster models, and additional features.

What makes VULK different from Bolt?

VULK offers 8 platform targets (vs web-only), 16 AI models with BYOM (vs limited selection), real PostgreSQL backends (vs Supabase integration), and server-side preview that works on all browsers including Safari. VULK also generates Flutter mobile apps, Shopify themes, and PHP/Laravel backends.

Can I use my own API keys with Bolt?

No, Bolt does not support BYOM (Bring Your Own Model). You use the models provided by the platform. VULK supports BYOM with OpenAI, Anthropic, DeepSeek, Groq, Mistral, and more.

代替ツール

Best Bolt.new Alternatives in 2026

Bolt.new by StackBlitz pioneered browser-based AI app generation with WebContainers. While its zero-setup approach is great for quick prototypes, its web-only focus, Safari compatibility issues, and lack of BYOM lead many to explore alternatives.

VULKを試す

すべての代替ツールを見る

代替ツールを探す理由

WebContainers have known issues on Safari and mobile browsers

Web-only — no Flutter, React Native, or native mobile app generation

No BYOM (Bring Your Own Model) support

No Shopify theme or PHP/Laravel generation

Limited backend options (Supabase integration only)

Preview runs client-side, which can miss server-side rendering issues

トップ代替ツール

VULK

Lovable

AI app builder generating React + Supabase applications. Features visual editing, autonomous Agent Mode, and deep Supabase integration.

メリット

Visual editing — click directly on the UI to modify elements

Deep Supabase integration with auth and real-time

Autonomous Agent Mode for multi-step features

Free tier available (5 daily credits)

デメリット

Single AI model with no selection or BYOM

Backend limited to Supabase only

No mobile app export

料金Free tier (limited), paid from $25/mo

最適な用途React + Supabase apps with visual editing

訪問

v0

Vercel's AI tool for generating polished React/Next.js components and pages with shadcn/ui, Tailwind CSS, and one-click Vercel deployment.

メリット

Exceptional UI design quality with shadcn/ui

One-click Vercel deployment

Free credits available

Excellent for Next.js ecosystem users

デメリット

Frontend-focused, limited full-stack capability

Next.js/React only — no other frameworks

No mobile export

料金Free tier ($5 credits), Premium $20/mo

最適な用途Polished UI components and Next.js pages

訪問

Replit

Cloud IDE with AI agent supporting 50+ languages. Full development environment with terminal, debugger, and autonomous build-test-debug capabilities.

メリット

50+ languages supported — far beyond web

Full cloud IDE with debugging tools

Autonomous AI agent

Real-time collaboration

デメリット

General-purpose IDE — less specialized for app generation

Cloud-only, no offline mode

Uses proprietary AI model only

料金Free tier available, Core $25/mo

最適な用途Multi-language development with cloud IDE features

訪問

Cursor

VS Code fork with deep AI integration — multi-file editing, tab completion, background agents, and full codebase understanding.

メリット

Works with any codebase and any language

Deep codebase indexing and understanding

Multi-file Composer for complex refactoring

Background agents for autonomous tasks

デメリット

Code editor, not a no-code app builder

Requires development expertise

No built-in deployment or hosting

料金Free tier (50 requests), Pro $20/mo

最適な用途Experienced developers enhancing their coding workflow

訪問

よくある質問

評決

私たちの評決

Bolt is excellent for quick web prototyping with zero setup — its WebContainers approach is genuinely innovative. But if you need mobile apps, Safari compatibility, model selection, or backends beyond Supabase, you will want to look elsewhere. VULK offers the broadest platform coverage with 16 AI models and real PostgreSQL backends, while Lovable excels at React + Supabase with visual editing.