Manus vs Devin×Landing Page / Marketing Site

Manus vs Devin for landing page / marketing sites

Comparing Manus and Devin for building landing page / marketing sites. See which tool is better and get expert code review for your AI-built project. From $19.

Start with an Audit — $19Full Comparison

Landing Page / Marketing Site challenges we solve

Common landing page / marketing site issues in apps built with Manus or Devin.

Page speed

Landing pages must load in under 2 seconds. AI tools generate bloated CSS, unoptimized images, and unnecessary JavaScript that slow loading. A 1-second delay in load time reduces conversions by 7%.

SEO fundamentals

Missing meta descriptions, incorrect heading hierarchy, no Open Graph tags, no structured data, and no sitemap. AI tools build the visible content but skip the invisible SEO infrastructure.

Form handling

Your contact form, waitlist signup, or demo request form must work flawlessly. AI-generated forms often lack validation, error messages, success confirmations, and backend integration.

Mobile responsiveness

Over 60% of traffic is mobile. AI-generated layouts sometimes break on small screens — overlapping elements, unreadable text, and inaccessible buttons. Every pixel matters for conversion.

Analytics and tracking

You need to know where visitors come from, what they click, and where they drop off. AI tools don't set up analytics, conversion tracking, or UTM parameter handling.

Which is better for landing page / marketing site?

Manus

Best for teams needing an autonomous agent that can handle diverse tasks beyond coding, including research, analysis, and document generation alongside development.

Manus code review

Devin

Best for software engineering teams that need an autonomous agent specialized specifically in coding, testing, debugging, and deployment tasks.

Devin code review

Start with a self-serve audit

Get a professional review of your landing page / marketing site app, regardless of whether you built it with Manus or Devin.

External Security Scan

Black-box review of your public-facing app. No code access needed.

$19
  • OWASP Top 10 vulnerability check
  • SSL/TLS configuration analysis
  • Security header assessment
  • Expert review within 24h
Get Started

Code Audit

In-depth review of your source code for security, quality, and best practices.

$19
  • Security vulnerability analysis
  • Code quality review
  • Dependency audit
  • Architecture review
  • Expert + AI code analysis
Get Started
Best Value

Complete Bundle

Both scans in one package with cross-referenced findings.

$29$38
  • Everything in both products
  • Cross-referenced findings
  • Unified action plan
Get Started

100% credited toward any paid service. Start with an audit, then let us fix what we find.

How it works

1

Tell us about your app

Share your project details and what you need help with.

2

Expert + AI audit

A human expert assisted by AI reviews your code within 24 hours.

3

Launch with confidence

We fix what needs fixing and stick around to help.

Frequently asked questions

Which is better for landing page / marketing sites: Manus or Devin?

Both can build landing page / marketing sites, but they have different strengths. Manus best for teams needing an autonomous agent that can handle diverse tasks beyond coding, including research, analysis, and document generation alongside development., while Devin best for software engineering teams that need an autonomous agent specialized specifically in coding, testing, debugging, and deployment tasks.. Our code review covers apps built with either tool.

Can you review a landing page / marketing site built with Manus or Devin?

Yes. We review landing page / marketing sites built with any AI coding tool. Our audit covers the specific landing page / marketing site challenges like page speed and seo fundamentals.

What issues should I watch for in landing page / marketing sites from AI tools?

Common landing page / marketing site issues include page speed, seo fundamentals, form handling. These apply regardless of whether you used Manus or Devin. Our code audit catches all of them.

How do I get my AI-built landing page / marketing site production-ready?

Start with our code audit ($19) — it covers landing page / marketing site-specific issues regardless of which AI tool you used. We check security, architecture, and deployment readiness, then provide a fixed quote for any fixes needed.

Related resources

Building a landing page / marketing site with Manus or Devin?

Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.

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