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Modern web platforms that drive results

Web Application Development

From marketing sites to complex SaaS applications, we build fast, accessible web products that engage users and grow your business online.

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Web Application Development by Innovation Insight

Who this is for

Web development engagements fit teams that need a customer-facing product or internal tool that must load fast, rank well and be easy for non-engineers to maintain. Typical buyers are startup founders launching a SaaS product, marketing leads replacing a slow site, and product managers extending an existing platform.

  • SaaS founders who need a multi-tenant web application with billing and admin in 8 to 14 weeks
  • Companies whose marketing site fails Core Web Vitals or cannot be edited without a developer
  • E-commerce teams moving to a headless storefront for speed and conversion
  • Product teams adding a customer portal or dashboard to an existing backend

How we approach web application development

Most new builds use Next.js with TypeScript on the front end and Node.js or Python on the back end, deployed to Vercel or AWS with a CI pipeline on day one. We set a performance budget before design starts: Largest Contentful Paint under 2.5 seconds on a mid-range phone, under 250 KB of JavaScript on the first load, and every image served in AVIF or WebP through an image CDN. Accessibility to WCAG 2.2 AA is part of the definition of done, not a later audit.

Design and engineering run one sprint apart so engineers always have validated screens. Each feature ships with unit tests, Playwright end-to-end tests for the critical paths, and a preview deployment your team can click through before it merges. For marketing sites we wire up a CMS such as Sanity or a Git-based workflow so content changes never wait on a developer, and we hand over with technical SEO in place: metadata, structured data, sitemaps and redirects.

What a typical engagement looks like

PhaseDurationWhat you getTypical cost
Discovery and UX1 to 2 weeksRequirements, user flows, clickable prototype, fixed estimate$3k to $8k
MVP build8 to 14 weeksCore flows, auth, payments, admin, production launch$15k to $45k
Full product4 to 8 monthsMultiple roles, integrations, analytics, QA automation$50k to $150k+
Marketing site3 to 6 weeksDesign system, CMS, SEO setup, Core Web Vitals passing$8k to $25k
MaintenanceMonthlyHosting, monitoring, updates, small improvements$1.5k to $5k per month
Every web product we hand over ships with a passing Lighthouse report and a written performance budget, so the site is still fast a year later when someone adds a third-party script.
What we deliver

Everything you need for web development, done properly.

Responsive design

Interfaces that look and work beautifully from desktop to mobile.

Custom web applications

Tailored applications that solve your specific business problems.

E-commerce platforms

Stores with secure payments, inventory management and a frictionless checkout.

Content management

CMS setups your team can run without engineering help.

Performance optimization

Fast load times through optimized code, caching and CDN delivery.

SEO-friendly build

Technical SEO baked in so your site ranks and attracts organic traffic.

Our process

How a typical engagement runs.

  1. 1

    Requirements

    We define goals, audience and functionality together.

  2. 2

    UX and UI design

    Intuitive interfaces and on-brand visual design.

  3. 3

    Frontend development

    Responsive, interactive UIs built with modern frameworks.

  4. 4

    Backend development

    Robust APIs, business logic and data architecture.

  5. 5

    Testing and QA

    Cross-browser, cross-device and scenario testing.

  6. 6

    Launch and maintenance

    Deployment, monitoring and ongoing improvement.

Outcomes

What you get out of it

  • More visibility and brand recognition online
  • Higher conversion through optimized user journeys
  • Lower bounce rates with fast-loading pages
  • Mobile-first experiences on any device
  • Content your team can manage themselves
  • Architecture that scales with growth

Technologies

Tools we reach for on web development work

  • React
  • Next.js
  • Vue.js
  • Angular
  • Node.js
  • PHP
  • WordPress
  • Shopify
  • PostgreSQL
  • MySQL
  • GraphQL
  • REST APIs
FAQ

Web Development questions, answered.

Which stack do you recommend for a new web app?

For most products we recommend Next.js with TypeScript on the front end and Node.js or Python on the back end, hosted on Vercel or AWS. We adapt to your existing stack when there is one.

Do you handle hosting and maintenance after launch?

Yes. We offer monthly maintenance plans covering hosting, monitoring, security updates and small improvements.

How much does a custom web application cost?

Typical web applications range from $15k for a focused MVP to $100k+ for a multi-role SaaS platform. You get a fixed estimate after a short discovery.