Discovery phase

A data-driven approach to model an in-demand product that includes business analysis, proof of concept (POC), design concept, and project estimate.

Product design

A complex human-centered process of developing a valuable product that blends business goals and user needs with design thinking in mind.

Web design
Mobile design
UX & UI Audit

AI-Native Web Application Development Company

Launch production-ready web apps in weeks, not months with senior engineers who use AI to cut delivery time, reduce cost, and protect quality

WE BUILD WEB APPS WITH aI

Work that used to take 3-4 months now ships in 6-8 weeks
What cost $40-60K now lands at $20-30K with the same scope and requirements
Quality went up because we rebuilt our entire workflow around AI
Every line of AI-generated code passes human review before it goes live
We stay code owners, validate every output, and take full accountability for the result

Uinno’s Results

100
+
Web apps shipped
800m
+
end-users reached. Our products power platforms used by millions globally.
3x faster
faster delivery with AI-assisted tools

Web Application DEVELOPMENT SERVICES

Custom Web Application Development
When off-the-shelf software is holding your business back, you need something built for your unique business. We design and build web apps on modern stacks using AI-enabled engineering workflows  to cut boilerplate and speed up delivery. The goal is software that makes your team faster and your users happier.
SaaS Web Platform Development
You build it once, and sell it to thousands. SaaS is a powerful business model, but it demands a team that can perform well in agile environments. Uinno’s team uses AI-native workflows to improve the delivery at every stage so you can get to market faster without compromising on scalability.
PWA Development for Mobile-First Products
A progressive web app loads instantly in a browser, works offline, and can be added to a phone's home screen in seconds. It's the fastest way to deliver a native-feeling mobile experience without building mobile apps.
MVP and PoC Web App Development for Startups
We run a Discovery Phase to map your business constraints, and the minimum feature set that proves your hypothesis. Then we build fast combining hands-on engineering with AI-powered tools to ship an MVP or PoC you can put in front of real users in 4 to 16 weeks.
Web App Redesign and Migration
Your current app got you here. But slow load times or a UX that frustrates users will stop you from growing. We audit what you have, identify what's worth keeping, and rebuild what isn't using AI-enabled code analysis to spot inefficiencies faster than a manual review alone.

How Much Does Web Application Development Cost

PoC
$2,000+

‍Narrow scope, single user flow, no integrations.

We use no-code and AI prototyping tools to validate your hypothesis at minimal cost.

Lean MVP
$15,000+

Core feature set, one user role, basic auth and deployment.

AI-enabled engineering workflows handles repetitive code so your budget goes toward the features that prove market fit.

SaaS platform MVP
$30,000+

Multiple user roles, billing, permissions, dashboards.

We use human-led, AI-assisted code review to catch costly architecture mistakes early before they compound.

Full-featured SaaS
$80,000+

Everything in the MVP tiers plus user permissions, compliance-ready security, integrations with external services, and a team that ships new features every week.

Team uses AI tools to handle testing and code generation so delivery stays fast without growing headcount.

What Sets Web App Development Apart

Your users expectations are set by the best product they used this morning
They use Linear, Stripe, and Notion every day. Your onboarding flow is being compared to theirs, whether you like it or not.
Software that interacts is 5-10x more complex than software that informs
A website serves pages. A web app processes logic, handles state, manages permissions, and syncs data. That complexity shows up in your architecture, your timeline, and your budget.
Most of the cost is in the 20% of features nobody thinks about first
Auth, billing, notifications, admin panels, logging, error handling. None of them are the reason your product exists and all of them are required for it to work. This is exactly where AI-native workflows pays off. It generates, tests, and wires up the infrastructure code so your budget stays focused on what makes your product unique.

AI-Powered Web APP Development Process

#1 AI-Enhanced Project Planning
#1 AI-Enhanced Project Planning

Before a single sprint starts, AI agents help us design the feature architecture, surface logical gaps, and cover non-functional requirements upfront. This alone eliminates the biggest invisible cost in any project - gaps that cause rework. We find them before development begins.

#2  UI/UX Design
#2  UI/UX Design

We design wireframes and prototype with AI-generated layouts to explore more options faster, and validate the experience with real users.

#3 AI-native Development
#3 AI-native Development

Following a structured plan, AI agents iteratively make changes to the codebase. The conversion from requirement to working code is now multiple times faster than manual coding. This is where the impact is largest and where your budget savings are most visible.

#4 Two-Stage Code Review
#4 Two-Stage Code Review

Every pull request goes through two layers. First, an AI agent reviews the code against a predefined instruction set, filtering out 70–80% of issues before they reach a human. Then our Engineering Manager validates and signs off. Faster cycles, fewer back-and-forths, same standard.

#5 AI-Assisted Testing and QA
#5 AI-Assisted Testing and QA

We use AI agents both for writing test suites and for accelerating manual QA of complete features. Higher test coverage without increasing time or cost.

#6 Launch and Ongoing Support
#6 Launch and Ongoing Support

We set up monitoring, handle deployment, and stay available for the post-launch period when real users find things no testing environment catches.

Who to hire for web app development

Freelancer

Best for simple, well-defined tasks when you have technical oversight. You become the PM, QA, and integrator.

You pay for hours.

Upfront cost

Low ($25–$120/hr), the entire management is on you.

Uinno

Best for startups and SMBs that need a full team from day one. Quick team setup and wide range of expertise.

You buy results.

Upfront cost

60% faster delivery than freelancers and ~30% cheaper than in-house. No overhead of hiring, onboarding, or managing.

In-house Team

Best for companies post-PMF that need long-term ownership.

Slow hiring and shipping before the team is ready.

Upfront cost

High. $120K–$220K/year per senior engineer. Long runway needed

Start discovery today with Uinno and save thousands in the future

Uinno's Success Stories

Bloomberg-Like Investment Management Platform

We built a fintech SaaS platform from scratch that helps investors gather comprehensive data about public companies, evaluate their potential, and make data-driven portfolio decisions. The system aggregates information from third-party sources, enables structured evaluation processes with custom factors and scoring, and visualizes everything in a unified dashboard.

One Platform for the Entire Employee Journey

A unified HR management ecosystem that streamlines the entire workforce lifecycle, from recruitment and onboarding to payroll and offboarding. Xemplo is built to scale from Australia to international markets.

eDopomoga: connecting more than 5200 volunteers

We worked with Ministry of Social Policy of Ukraine to build eDopomoga - a digital platform that unites government agencies, humanitarian organizations, and global volunteers in a shared mission to support those in urgent need.

What Our Clients Say

Emmanuel Dollé
I'm not saying this to sell anything or congratulate anyone but we've started running beta tests with potential customers, and as a former marketer, I've been running my own tests too. The quality of the prompts produced is mind-blowing.
Emmanuel Dollé
Chief Executive Officer at Bubbling
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Emmanuel Dollé
Chief Executive Officer at Bubbling
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Jukka-Pekka Rahkonen
The new system built by Uinno works perfectly well and has received positive feedback from users. Uinno managed the project well and effectively handled small delays. Their flexibility, agility, and technical skills stood out.
Jukka-Pekka Rahkonen
System Architect at Envirovet Oy
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Jukka-Pekka Rahkonen
System Architect at Envirovet Oy
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Kostiantyn Koshelenko
Through Uinno’s expertise, we redesigned and built a national social aid platform helping millions access assistance. They led strategy to delivery with professionalism, upskilled our government team, and ensured seamless collaboration.
Kostiantyn Koshelenko
Deputy Minister of Digital Transformation at MSP of Ukraine
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Kostiantyn Koshelenko
Deputy Minister of Digital Transformation at MSP of Ukraine
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Garreth Wills
Uinno remains my top development partner. Across multiple projects, their delivery, communication, and attitude are consistently excellent. Despite the distance, they maintain a seamless workflow and keep me fully updated. The team you can trust completely.
Garreth Wills
Founder at UserKind
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Garreth Wills
Founder at UserKind
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Douglas Campbell
Uinno has done a great job building our website. Before working with them, our website was a mess; since Uinno took over, the site has improved quickly. Their speed when completing tickets and the valuable suggestions they offer also stand out.
Douglas Campbell
Professor of economics, Founder & CEO of Insight Prediction
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Douglas Campbell
Professor of economics, Founder & CEO of Insight Prediction
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Ben Beath
I’ve been working with Uinno for over 10 years on products across the USA, Australia, and the UK. At our peak, we had more than 80 specialists involved and the experience has been exceptional. The team is brilliant, responsible, and genuinely cares about what they do.
Ben Beath
6x tech startup founder (four exits)
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Ben Beath
6x tech startup founder (four exits)
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Tools we use for SOFTWARE PRODUCT development

We are not attached to a particular technology stack. We solve your business challenges using the most fitting programming languages and frameworks.

HTML5 / CSS3
React.js (Next.js, Gatsby)
Bootstrap
Vue.js (Nuxt.js, VuePress)
Material UI
A-Frame
JavaScript & JQuery
Ember.js
Typescript
Svelte
Angular.js
С# (.NET, ASP.NET)
Node.js (Nest.js, Fastify, Express, Strapi)
Python (Django, Flask, FastAPI)
Ruby (Ruby on Rails, Sinatra)
Golang
Headless CMS
MySQL
DynamoDB
MongoDB
Oracle
Redis
SQLite
PostgreSQL
Firebase
Amazon Web Services (AWS)
Nomad
Microsoft Azure
Serverless
Google Cloud Platform
Terraform
Docker
CloudFormation
Ansible
Puppet
Kubernetes
Ethereum
Polygon (Solidity)
Solana (Rust)
Infura
Alchemy
Tatum
Moralis
Swift
Objective-C
Java
Kotlin
Flutter
React Native
Sketch
Figma
Adobe Illustrator
Adobe Photoshop
Adobe XD
InVision
Zeplin
Principle
Confluence
Slack
Jira Software

About Uinno

2018
founding year
250+
Clients worldwide
93%
client retention on long-term projects
We're the team that stopped 80% of fraud for a platform with 250K daily signups, earned government trust from the University of Melbourne, and won "Fintech Product of the Year" for humanitarian innovation. 

Born from experience with Toyota, Loreal, and NAB, Uinno brings Fortune 500-caliber engineering to anyone tired of working with vendors who just execute because your business deserves partners who think, care, and deliver like owners.

FAQ

How much does it cost to build a custom web application?
+

The cost depends on product type, scope, and how well-defined the requirements are before development starts. A basic web app MVP runs $15,000–$30,000. A SaaS platform starts around $30,000–$80,000. A full-featured SaaS product typically starts at $80,000 and scales from there. At Uinno, AI-assisted development means budgets that used to be $40–60K now land in the $20–30K range for the same scope. We run a paid Discovery Phase before development begins, so you get an accurate, scoped estimate rather than a number pulled from thin air to win the deal. No surprises when the invoice arrives.

Do you take on projects where you didn't build the original codebase?
+

Yes, and it's often where we add the most value. We'll audit the existing code with the help of AI-assisted analysis to spot inefficiencies faster than a manual review alone, then tell you honestly what's worth keeping and what isn't. We won't recommend scrapping everything just because it's not ours. If incremental improvements will get you to launch faster, that's the recommendation you'll get.

How do you handle scope changes mid-project?
+

We use fixed-scope sprints, so every two weeks you know exactly what's being built and what it costs. If your needs change, and they often do, we scope the change before we start it. You'll never get a surprise invoice for work you didn't explicitly agree to. If a change affects the timeline or budget, we have that conversation before it affects either.

Can you build a web app and then help us hand it over to an in-house team?
+

Yes, and we plan for it from the start if you tell us that's the goal. Documentation, code structure, and onboarding support are part of the handover. We've done this multiple times. Founders who launch with Uinno raise a Series A, then start hiring their first in-house engineers.

Do you only work with startups?
+

Startups are our focus because our process is built for speed, budget constraints, and uncertainty. But we also work with growth-stage companies that need to ship new products fast or modernize existing ones. If you need to move quickly and can't afford to wait six months for results, we're a good fit.

you have a vision

we have the means to get you there !

Contact us
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Once your email gets to our inbox, within just 12 business hours our representative will contact you back to clear out all the project requirements and cooperation flow. We can sign an NDA upon request, however, you can be sure that your ideas are safe with us.
The first point of contact
Volodymyr Zahrebelnyi
BDM
Strategic manager focused on actionable business insights
Alexey Solovyov
BDM
Tech strategist, who don’t pitch devs, but deliver outcomes
Stanis Bondarenko
Co-Founder & CRO
Strategist who keeps numbers and vision sharp

We stand with Ukraine