vly.ai vs Spider Cloud

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-09-01
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At a glance

Dimensionvly.aiSpider Cloud
PricingFree (acquired by Freebuff)Freemium; AI Studio add-on $6/mo
Primary UseAI-powered full-stack web app builderWeb crawling & scraping API for AI agents
Target UsersNon-technical users, startups, hackersDevelopers, AI/ML engineers
Key FeatureNatural language app creation, one-click publishRust engine, 99.9% success, $0.03/1k pages
IntegrationsStripe, OpenAI, Twilio, GitHub, Slack, AWSLangChain, LlamaIndex, S3, GCS, etc.
Latest NewsAcquired by Freebuff; now free (Jul 2026)Browser AI commands (Act, Extract, Observe) Mar 2026

Spider Cloud and vly.ai serve completely different needs. Spider Cloud is a high-performance web crawling & scraping API optimized for AI agents and RAG pipelines, with a Rust engine and per-page pricing. vly.ai (now free via Freebuff) is an AI app builder for non-technical users creating full-stack web apps from natural language. Choose Spider Cloud if you need reliable, cheap data extraction at scale; choose vly.ai if you want to build web apps without coding. They are not direct competitors.

Try vly.aiTry Spider Cloud
vly.ai
vly.ai

Free AI full-stack web app builder, now part of Freebuff Web—unlimited use, no subscriptions.

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Spider Cloud
Spider Cloud

AI web scraping API: crawl, scrape, search any site into markdown or JSON at 10k req/min.

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Pricing
Free
Freemium
Plans
$0/mo
$1/GB + $0.001/min compute
$40/mo (2 concurrency)
$6/mo
Popularity
10 views
7.5k views
Skill Level
Beginner-friendly
Intermediate
API Available
Platforms
Web
WebAPICLI
Categories
🚀 AI App & Website Builders
🌐 Web Scraping & Search APIs🖱️ Browser & Computer-Use Agents
Features
Natural language app creation from a prompt
Multiple coding agents: vly agent 2.0, Claude Code, OpenAI Codex, Gemini CLI
Realtime-first architecture with live sync
Managed backend via Convex (database, server functions)
Version control for projects
Custom domain support
One-click publishing to production
Realtime queries and mutations
Backend visualization with explanations
End-to-end Type Safety
1000+ integrations (Stripe, OpenAI, Twilio, GitHub, Slack, AWS, SendGrid, Notion)
Automatic deployment on Freebuff React infrastructure
Tailwind CSS with customizable themes
Asset management and theme customization
Backups and reverting changes
Scrape any website into markdown, JSON, or raw HTML
Full-site crawling at 100K+ pages/sec
10,000 core API requests per minute default
Web Search API: SERP + scraping + extraction in one call
/ai/search endpoint with relevance gate to skip irrelevant pages
Silk AI model: HTML-to-structured data and captcha solving on GPUs
Browser Cloud: full browser sessions over CDP
AI commands (Act, Extract, Observe) via WebSocket with AI Studio
Multiple output formats: HTML, raw, plain text, markdown, JSON, JSONL, CSV, XML
Stealth browser layer and Unblocker for anti-bot sites
Proxy pool with 215M+ residential and ISP IPs across 199+ countries
Robots.txt compliance on by default, disable per-request
data_connectors parameter: pipe results to S3, GCS, Google Sheets, Azure Blob, Supabase
extraction_schema parameter: AI output conforms to JSON schema
1,000+ ready-made scraper examples across 32 categories
Integrations
Stripe
OpenAI
Twilio
GitHub
Slack
AWS
SendGrid
Notion
LangChain
LlamaIndex
CrewAI
FlowiseAI
AutoGen
Agno

What real users say: vly.ai vs Spider Cloud

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

vly.ai

3 mentions across 1 sources · 50% positive — mixed

Lemmy

What users praise

  • • Now completely free with unlimited use after Freebuff acquisition.
  • • Supports multiple advanced coding agents: Claude Code, Codex, Gemini CLI.
  • • Natural language prompts generate production-ready full-stack web applications.
  • • Managed backend with database included – no DevOps needed.

What frustrates them

  • • No community feedback available – tool is effectively untested by users.
  • • Recent acquisition may cause platform instability or feature changes.
  • • Migration to Freebuff Web creates confusion on where to access projects.
  • • Claimed 'production-ready' apps unverified by real-world deployments.

Researched Jul 6, 2026

Spider Cloud

41 mentions across 2 sources · 0% positive — critical

YouTube, Lemmy

What users praise

  • • Competitive pay-as-you-go pricing at $1/GB with no expiry.
  • • Default rate limit of 10,000 requests per minute is generous.
  • • Broad output formats (HTML, markdown, JSON, CSV) cover diverse needs.
  • • Integrated Web Search API bundles SERP and extraction for AI agents.

What frustrates them

  • • No community feedback to confirm reliability or performance.
  • • Self-reported metrics lack independent verification.
  • • Stealth browser success may vary across real sites.
  • • Potential legal risks from scraping; compliance is user's responsibility.

Researched Aug 26, 2026

Who should pick which

  • AI Developer building RAG pipeline
    Pick: Spider Cloud

    Spider Cloud's high-performance Rust engine, 99.9% success rate, and low cost ($0.03/1k pages) make it ideal for extracting web data for RAG. Integrations with LangChain and LlamaIndex streamline pipeline integration.

  • Non-technical entrepreneur prototyping a web app
    Pick: vly.ai

    Vly.ai allows creating full-stack web apps from natural language without coding. Now free via Freebuff, it's perfect for rapid prototyping and MVPs.

  • Data scientist needing to scrape multiple sites
    Pick: Spider Cloud

    Spider Cloud's crawler catalog (1,000+ examples) and browser AI commands make complex scraping tasks easy. Its unblocker with rotating proxies handles anti-bot measures.

  • Startup team building a customer-facing app
    Pick: vly.ai

    Vly.ai offers managed backend, database, version control, and custom domains—everything needed to publish a production-ready app quickly. One-click publishing accelerates time-to-market.

  • Hackathon participant
    Pick: vly.ai

    Vly.ai's natural language interface and rapid app generation are perfect for building a prototype in a hackathon. The free pricing removes any barrier.

Frequently Asked Questions

vly.ai vs Spider Cloud: which should you choose?

Spider Cloud and vly.ai serve completely different needs. Spider Cloud is a high-performance web crawling & scraping API optimized for AI agents and RAG pipelines, with a Rust engine and per-page pricing. vly.ai (now free via Freebuff) is an AI app builder for non-technical users creating full-stack web apps from natural language. Choose Spider Cloud if you need reliable, cheap data extraction at scale; choose vly.ai if you want to build web apps without coding. They are not direct competitors.

Are Spider Cloud and vly.ai competitors?

No. Spider Cloud is a web crawling/scraping API for AI agents; vly.ai is an AI app builder for creating web apps. They serve different use cases.

Is vly.ai really free?

Yes. Since its acquisition by Freebuff in July 2026, vly.ai is completely free with unlimited use. All previous subscriptions were cancelled.

What is Spider Cloud's pricing?

Spider Cloud has a freemium model. It charges per page crawled (average $0.03 per 1,000 pages) and offers an AI Studio add-on for $6/month.

Can Spider Cloud scrape JavaScript-heavy websites?

Yes. Spider Cloud offers Browser AI commands (Act, Extract, Observe) via WebSocket and a Browser Cloud with stealth anti-detection for JavaScript-rendered pages.

What integrations does Spider Cloud support?

Spider Cloud integrates with LangChain, LlamaIndex, CrewAI, FlowiseAI, AutoGen, Agno, Dify, Google Cloud Storage, Amazon S3, and Supabase.

Can I use vly.ai to build a mobile app?

Vly.ai is web-only; it builds full-stack web applications. For mobile apps, you would need a different solution.

Does Spider Cloud offer an open-source version?

Yes. Spider Cloud has an open-source core available on GitHub for self-hosting.

What are the latest updates for these tools?

Spider Cloud (Mar 2026) added Browser AI commands (Act, Extract, Observe). Vly.ai (Jul 2026) was acquired by Freebuff and is now free.

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Explore each tool further

vly.ai
View vly.ai reviewvly.ai alternatives
Spider Cloud
View Spider Cloud reviewSpider Cloud alternatives

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Best AI AI App & Website Builders toolsBest AI Web Scraping & Search APIs toolsBest AI Browser & Computer-Use Agents tools
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Last reviewed: July 3, 2026