How is this different from hiring freelance developers?

We provide a complete development team with structured processes, accountability, and expertise across the full stack. You get consistent weekly progress, clear communication, architectural expertise, and long-term support - not just code delivery. We think strategically about scalability and maintainability from day one.

What technologies and frameworks do you use?

We primarily use Next.js and React for frontend, Node.js and NestJS for backend, TypeScript throughout, and databases like PostgreSQL or MongoDB. We also work with modern tools like Prisma, tRPC, Tailwind CSS, and deploy on platforms like Vercel, AWS, or Railway - all chosen based on your product needs.

How long does it take to build a SaaS web app?

Most MVP web applications take 12+ weeks from architecture to launch, depending on feature complexity and scope. Simple products can be faster, while complex platforms with multiple user roles, integrations, and advanced features take longer. We'll provide a detailed timeline after understanding your requirements.

Can we start with an MVP and add features later?

Absolutely - that's our recommended approach. We help you define the minimum viable feature set, build that first, then iterate based on user feedback. Starting lean reduces risk, gets you to market faster, and ensures you're building features users actually want.

How much does web app development cost?

Investment typically start from €15K+ depending on product complexity, number of features, integrations, user roles, and timeline. Simple MVPs are on the lower end, while complex platforms with advanced features require more investment. We'll provide a detailed proposal after understanding your requirements.

Web App Development

Helping 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.

Explore our work

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.

CroatiaSaaS

Internal Project Management and CRM System – InityCore

A unified project management and CRM system built in 70 hours to replace Jira + HubSpot

USAReal Estate / PropTech

Best Branded Residences – Luxury PropTech Platform

Building a full-stack platform that ranks and connects the world's top branded residences with high-net-worth buyers through AI-powered matchmaking.

USASaaS

Blugency – Streamlined Business Operations Platform Design

Dual platform design for Blugency's legal technology SaaS: client dashboard for business management and admin interface for service delivery operations.

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.

Build on strong foundations from day one

Swipe to explore steps

Trusted by SaaS companies worldwide

Why partner with Inity Agency?

Senior-only team

No juniors, no outsourcing, just experienced product talent.

SaaS-first expertise

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

Design + dev together

No handoff friction. Everything is aligned from day one.

Clear, async communication

Weekly updates, Loom videos, and zero meeting bloat

Fast delivery, real progress

You see meaningful output every single week

Flexible engagement

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

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.

Get Checklist

FAQ

Frequently Asked Questions

5.0 RATING

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.

5.0 RATING

Q2 2026 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