Web App Development

We help SaaS founders turn specs into scalable, reliable web apps.

From architecture to development to launch - we build modern SaaS products your users can trust and your team can grow on.

Web App Development
Web App Development

Development shouldn’t be a black box. We build SaaS products using clean architecture, modern frameworks, and tight collaboration with design — delivering stable, scalable applications with predictable weekly progress.

1.IDEA

2.ARCHITECTURE & PLANNING

  • Architecture Design

  • Database & API Planning

  • Environment Setup

  • Security Planning

  • Infrastructure Setup

3.FRONTEND DEVELOPMENT

  • Next.js Implementation

  • State Management

  • Responsive Development

  • Component Libraries

  • API Integration

  • Accessibility Implementation

4.BACKEND DEVELOPMENT

  • Nest JS Development

  • API Development

  • Database Engineering

  • Authentication & Roles

  • Third-Party Integrations

  • Business Logic Implementation

  • Security & Permissions

5.QA

From concept to live product faster

We simplify the entire development process with clear communication, modern engineering practices, and a workflow built for momentum. We architect the foundation, build clean frontend & backend systems, test thoroughly, deploy safely, and support you long after launch. No unstable code. No unclear timelines. No surprises.

01.ARCHITECTURE & SETUP

Build on strong foundations from day one

Before writing a single line of code, we define the technical structure your product needs to scale safely and perform smoothly.

Tech Stack Planning

Next.js, React, Node, NestJS, TypeScript, databases, hosting - chosen based on your goals.

Architecture Design

Clear frontend & backend structure that supports future features.

Database & API Planning

Schema design, endpoints, authentication, roles, security.

Environment Setup

Staging, production, deployment pipelines, and infrastructure.

02.FRONTEND DEVELOPMENT

Modern, responsive, and accessible interfaces

We translate your UI design into high-quality, performant frontend code built for SaaS usability and long-term maintainability.

Next.js Implementation

Pixel-perfect UI brought to life with clean code.

State Management

Handle data, logic, and interactions effectively.

Responsive Development

Optimized for all devices and screen sizes.

Component Libraries

Reusable building blocks for faster future development.

03.BACKEND DEVELOPMENT

Reliable backend systems your product can grow on

We create secure, scalable backend infrastructure tailored to your product’s needs.

API Development

REST or GraphQL - secure, efficient, well-documented.

Database Engineering

PostgreSQL, MongoDB, Supabase or your preferred system - optimized for performance.

Authentication & Roles

Secure login, permissions, sessions, and access control.

Integrations

Payments, analytics, emails, AI features, third-party tools.

04.QA, TESTING & DEPLOYMENT

A stable, well-tested product ready for real users

Before launch, we test everything thoroughly to ensure your product performs reliably under real conditions.

Automated & Manual Testing

Unit tests, integration tests, UI testing.

Bug Fixing & Polish

Refinement across the entire app.

Performance Optimization

Speed, caching, queries, load handling.

Safe Deployment

Production release with monitoring tools.

05.ONGOING SUPPORT

Continuous support to keep your SaaS product improving

We stay with you beyond launch to help iterate, add features, and support users.

Maintenance & Fixes

Stable product performance over time.

Feature Development

Ship new features faster with the same team that built your app.

Monitoring & Observability

Track performance, errors, and user behavior.

Technical Guidance

Architecture decisions, integrations, scaling support.

Trusted by SaaS companies worldwide

Drum
Cero Trade
TealBook logo
Portasana logo
Ownsy
Euroshowers logo
ViaVia logo
Shoutt logo
Texflow logo
GRO Media logo
Best Branded residence logo
Sensecloud
Drum
Cero Trade
TealBook logo
Portasana logo
Ownsy
Euroshowers logo
ViaVia logo
Shoutt logo
Texflow logo
GRO Media logo
Best Branded residence logo
Sensecloud

Why partner with Inity Agency?

Senior-only team

Senior-only team

No juniors, no outsourcing, just experienced product talent.

SaaS-first expertise

SaaS-first expertise

We understand flows, dashboards, onboarding, retention, and metrics.

Design + dev together

Design + dev together

No handoff friction. Everything is aligned from day one.

Clear, async communication

Clear, async communication

Weekly updates, Loom videos, and zero meeting bloat

Fast delivery, real progress

Fast delivery, real progress

You see meaningful output every single week

Flexible engagement

Flexible engagement

Pause anytime. Scale up or down based on your product needs.

Get Your User Validation Checklist - Validate before building

Get Your User Validation Checklist - Validate before building

A great idea isn’t enough – it has to work for your users, your business, and your tech stack. Use our free guide to uncover blind spots, test assumptions, and find out if your idea is ready to become a winning digital product.

FAQ

Frequently Asked Questions

Complete end-to-end development: technical architecture planning, frontend and backend development, database setup, API development, authentication systems, third-party integrations, QA testing, deployment, and ongoing support. You get a production-ready SaaS application built with modern frameworks and clean code.

Have a project idea in mind?

Let’s create a digital experience that stands out.

Main CTA
Q1 2025 SLOTS AVAILABLE

Ready to Build Your SaaS Product?

Free 30-minute strategy session to validate your idea, estimate timeline, and discuss budget

What to expect:

  • 30-minute video call with our founder
  • We'll discuss your idea, timeline, and budget
  • You'll get a custom project roadmap (free)
  • No obligation to work with us