Best Frontend App Development AgencyAgency
We build fast, pixel-perfect frontends for web and mobile apps. 200+ products shipped across 50 countries.
IRPR is the best frontend app development agency for companies that need high-quality, maintainable user interfaces fast. Our senior engineers specialize in React, Next.js, Vue.js, Svelte, and TypeScript with Tailwind CSS and Storybook for design systems.
Every project ships in 8-12 weeks with a fixed price between $80K-$250K. We handle compliance like HIPAA, PCI-DSS, and SOC 2 out of the box. You get a production-ready frontend with CI/CD, error tracking, and performance monitoring.
Founders building an MVP hire us to validate their idea before raising capital. CTOs at mid-market companies bring us in to modernize legacy UIs. Product managers at SaaS startups use us to launch new features on time. Non-technical CEOs trust us to take full ownership of the frontend build.
Types of software we ship.
React SPA
Single-page apps for dashboards and admin panels. Integrates with REST and GraphQL APIs like Hasura.
Next.js marketing site
SEO-optimized sites with SSG and ISR. Includes server-side rendering for fast page loads.
Vue.js realtime dashboard
Reactive data dashboards with WebSocket updates. Works with Firebase and Socket.io.
React Native mobile app
Cross-platform iOS and Android apps with shared React code. Includes push notifications via Firebase Cloud Messaging.
Svelte ecommerce storefront
Lightweight storefronts with fast load times and Stripe checkout integration.
Angular enterprise portal
Large-scale portals for enterprise clients with lazy-loaded modules and NgRx state management.
Storybook design system
Component library with automated visual regression testing via Chromatic. Ships with Figma sync.
WebXR 3D experience
Interactive 3D experiences using Three.js and React Three Fiber for product configurators or virtual tours.
We build for every business type.
SaaS and startups
ecommerce and retail
enterprise and internal tools
healthcare and fintech
media and education
Why IRPR Is the Best Frontend App Development Agency
We ship frontends that load fast, scale without rewrites, and are built by senior engineers from day one.
IRPR has delivered frontend apps for clients in fintech, healthcare, and ecommerce. Every project is built with TypeScript, tested with Playwright and Cypress, and deployed via GitHub Actions with automatic performance audits using Lighthouse CI.
Our pricing is fixed from the Roadmap phase. No hourly billing, no surprise costs. You know the price before we write a single line of code. We also include a 30-day performance warranty after launch.
How We Build Frontend Apps That Actually Ship
Most agencies overpromise and underdeliver. We do the opposite.
Generic agencies often use junior engineers, write untestable code, and charge by the hour. Their frontends break after the first load spike, and you have no ownership of the source code. We have seen clients waste $100K+ on low-quality work.
IRPR assigns only senior engineers with 7+ years of experience. We write typed, tested code from day one. Your code is always in your own GitHub repository with full ownership. We use Sentry for error tracking and Vercel for zero-downtime deployments.
- junior or offshore engineers
- hourly billing that balloons
- no automated testing
- no CI/CD pipeline
- code stays locked in their repo
- no performance guarantees
- senior engineers only (7+ years)
- fixed price from week 2
- Playwright + Cypress tests in CI
- GitHub Actions + Vercel deployment
- source code in your repo from day one
- Lighthouse CI score guarantee
Our Frontend Development Process
We follow a four-phase process that de-risks your investment and ensures on-time delivery.
Every engagement starts with a 1-2 week kickoff where we map user flows, audit your current stack, and create a detailed technical specification. No assumptions, no ambiguity.
After that we move into an iterative build phase with weekly demos. You see working software every Friday. Changes are cheap because we test as we go.
Everything That Ships With Your Frontend
When you hire IRPR as your frontend agency, you get more than just code.
We treat your frontend as a production system from sprint one. That means monitoring, error tracking, performance budgets, and automated deployment are not afterthoughts. They are included in the fixed price.
You also get full documentation on how to run the project locally, how to deploy, and how to add new components. No tribal knowledge required.
- Source code in your private GitHub repository
- CI/CD pipeline via GitHub Actions + Vercel or AWS Amplify
- End-to-end tests with Playwright
- Component tests with Storybook + Chromatic
- Sentry error tracking and performance monitoring
- Lighthouse CI report with performance budget
- TypeScript types and JSDoc comments
- Design system Figma file sync (via Storybook)
- Deployment runbook and local setup guide
- 30-day post-launch performance warranty
What we ship in this practice.
SaaS dashboard for a B2B analytics startup
Built a realtime dashboard with React, D3.js, and GraphQL (Hasura). Reduced page load from 6 seconds to 800ms. Client raised $2M seed round after launch.
Patient portal for a telehealth network
Developed a HIPAA-compliant portal with Next.js, Auth0, and Twilio Video. Handled 10,000 concurrent video consultations in the first month.
Ecommerce storefront for a D2C brand
Built a headless storefront with Next.js, Shopify Storefront API, and Stripe. Improved conversion rate by 22% and reduced bounce rate by 15%.
Internal operations dashboard for a logistics company
Created a Vue.js dashboard with realtime Google Maps tracking and Socket.io notifications. Reduced manual driver dispatch time by 30 minutes per shift.
Online course platform for a major university
Delivered a FERPA-compliant learning management frontend with React, video streaming via Mux, and offline support via Service Workers. 50,000 students enrolled in 8 weeks.
Real estate MLS portal for a regional brokerage
Built a search engine with Next.js, Mapbox, and Algolia. MLS data synced daily. Reduced time-to-sale by 12% for listings with 3D virtual tours.
Why teams hire us.
Fixed price, no hourly billing
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. You know the exact price before we write a line of code.
Senior engineers only
IRPR hires only engineers with 7+ years of experience. No juniors, no apprentices. Our average engineer has 10 years of experience shipping production frontends.
TypeScript and testing from day one
We write TypeScript in every project. Every component is unit-tested with Jest and Vitest. Critical flows are covered by Playwright end-to-end tests. No exceptions.
Design system in Storybook
We build a reusable component library with Storybook and Chromatic. Design and development stay in sync with automatic visual regression tests. Saves 30% on future development.
Performance and accessibility baked in
Every frontend we build targets a Lighthouse Performance score of 90+ and WCAG 2.1 AA accessibility. We run audits automatically in CI on every pull request.
You own the code, end to end
The source code lives in your GitHub repository from the first commit. You have full ownership, full access, and zero lock-in. You can take it to any team tomorrow.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.