Digital product engineering

Web and mobile apps. From idea to product.

Anyone can generate an app now. Almost nobody can generate one that still works in year two. We build with AI at full tilt — steered by engineers who have been shipping production software since 2017. Your project, run like it's our own.

Get a demo See the work
Clients & partners Hospitality · Healthcare · Retail · Fintech
ESPGHAN Turistička zajednica grada Kutine HiveTech BeDry Grad Kutina Max Bonus Club Trova Trails KIND — Industrijsko-logistička zona Kutina EcoGofer K&K EuroProjekt Apparel Meister Promel Projekt

The long game

We measure in experience,
not quantity.

A handful of engineers. Fifteen-plus companies over nine years. Most of our clients have been with us since their own beginning — and most of the rest arrived on a recommendation from the last. We hold onto the clients we've earned — and we're opening the door to a few new ones ready for the long run.

0

Years in production

Since May 2017

0+

Companies we've built for

web, mobile & platforms

0 yrs

Longest partnership

and still running

0+

Sites we host & maintain

for many years

Selected work

Seven stories. Six wins
and one honest lesson.

Send a brief →
Featured Leading Croatian brewing group

Managed once. Served everywhere.
Always current.

One catalogue governed by one of the leading brewing groups in Croatia, published to always-current QR menus across the on-trade network — no reprints, no field visits, no stale prices at the table.

Next.jsReactSpring Boot PostgreSQLDockerCoolify
Guest menu views
1,300
in the last 30 days
Network rollout
14
pricelists live · target ~500
Digital pricelist — admin dashboard and guest QR menu over a moody bar scene
ESPGHAN app — home screen and diagnostic toolbox on two phones over a calm navy backdrop ESPGHAN

Medical-grade for pediatricians

ESPGHAN's clinical guidelines on the web and in the pocket — interactive diagnostic tools, minimalist by design, live across Europe.

React NativeiOS + AndroidEU-wide
BeDry app — Bladder Score checkpoint and trends report on two phones over a soft water-droplet backdrop BeDry

4 years. MVP to platform.

A pediatric bladder-health platform — a validated MVP rebuilt cross-platform, now with a Checkpoint · Coach · Trends habit builder that turns a child's diary into a score, a plan and a trend.

React NativeMobile · Web · APIPediatric health
Trova Trails key art — a gladiator statue and a lion in front of the Colosseum in collage style Trova Trails

Rome, turned into a mission

Story-driven treasure hunts across Rome's landmarks for kids and families — live on both stores since 2022, trails sold as in-app purchases, bilingual EN/IT.

React Native / ExpoTypeScriptIn-app purchases
Max Bonus Club rewards screen on a phone floating over flowing golden ribbons Max Bonus Club

Loyalty for a gaming venue network

Mobile, web backoffice and in-venue RFID terminal — wired live into the Octavian gaming system: ranks, prize points, prize games and referrals.

React NativeSpring BootOctavian sync
EcoGofer courier cycling with a green branded delivery bag next to the EcoGofer bicycle logo EcoGofer

The one that didn't launch

An emission-free delivery marketplace — three apps, a 30-courier pilot, zero critical errors. And no launch. We keep it here for the lesson.

Spring BootIonicStripe
Apparel Meister back-office dashboard in a browser window over a coral gradient Apparel Meister

Our own bet: retail POS

A cloud POS and stock-management platform for apparel retail — our own product venture, now looking for a partner to finish, launch or acquire it.

Java · Spring BootAngularStripe

The quiet portfolio

Websites we build, host
and keep alive.

Beyond the product work sits a set of business websites we've built and quietly kept fast, online and updated — some for many years. A few that are public:

kkep.hr homepage — K&K EuroProjekt PVC and ALU joinery
kkep.hrPVC & ALU joinery, Zagreb
turizam-kutina.hr homepage — Kutina Tourist Board
turizam-kutina.hrKutina Tourist Board
festivalvina-kutina.hr homepage — MoslaVina wine festival
festivalvina-kutina.hrMoslaVina wine festival
kind.hr homepage — Industrial Logistics Zone Kutina
kind.hrIndustrial logistics zone, Kutina
promel.hr homepage — Promel Projekt traffic-engineering design office
promel.hrTraffic-engineering design office
klesarstvo-plavsic.hr homepage — stonemasonry workshop
klesarstvo-plavsic.hrStonemasonry, since 1984

Need one of these? Start at EM2 AI Studio — we'll build you one on the screen before you decide anything.

Our story

01 / 04

Your business.
Not just an app.

Before any code, we learn how you earn — your day, your team, your numbers. Then we build the product that serves them.

Small team.
Direct line.

2–3 engineers and you in the same chat. No account managers, no layers, no broken telephone.

If it breaks,
it's on us.

CI/CD from commit one, monitoring from deploy one — and errors in production fixed free, forever. Not a premium tier. The default.

Yours.
Truly.

Code, docs and infrastructure are yours from day one, with a full walkthrough at handover. New ideas become fixed offers — never lock-in. We earn the next project, we don't assume it.

The obvious question

If AI can build it,
why hire anyone?

It's a fair question and the honest answer is that AI genuinely does write most of the code here now. We lean on it hard — it's why we move as fast as we do.

What it can't do yet is know which of the ten ways to build something is the one you'll still be able to live with in two years.

01What goes wrong

The first version always works

Generated code demos beautifully. It starts fighting you at the second feature, the first real customer, or the year you change direction — and by then it's your problem, not the tool's.

02What we do about it

An engineer decides, then AI types

How your data is shaped, what happens when a payment fails at 3am, what you'll want to change next year — decided by someone who has been woken up by all three. Then AI writes it, fast.

03How you can check

Systems from 2020, still running

What we built six years ago is still in production and still being extended — by us and in some cases by the client's own team. That's the part you can't fake with a good demo.

You are not paying us to type. You are paying for the half hour where someone who has done this before says “not like that” — and the nine years that make it worth listening to.

Approach

Five phases,
clear handover.

01Free · 30 min

Intro call

Tell us what you're building. We listen, ask the awkward questions early and point you the right way — even if the honest answer is "you don't need us yet".

022,000€ max · 1 wk

Discovery week

A fixed week of real work: the plan, the technical documentation and — when it helps — a clickable mockup or demo of your idea. Capped at 2,000€. Docs are yours either way.

03Fixed quote

The offer

We review the discovery together and put a number on the real product — a fixed offer scoped to what your business actually needs. No obligation to continue.

04By scope

The build

Production-ready skeleton first — CI/CD, monitoring, first use cases live in 2–6 weeks. Then two-week sprints with a demo every week. A real build in your hands at every sprint end.

05On us · per offer

After launch

Production errors are on us — fixed, free. New features and updates arrive as new fixed offers, with a full walkthrough and docs whenever your team takes over. No lock-in.

Live proof

This page is
the pitch.

Every agency promises fast websites. Below are this page's actual Core Web Vitals — measured right now, in your browser, by the browser. Not by us.

LIVE — MEASURED IN YOUR BROWSER VIA PerformanceObserver

LCPtarget < 2.5s
…

Largest Contentful Paint — how fast the main content appeared. Median marketing site: ~3.9s.

CLStarget < 0.1
…

Cumulative Layout Shift — nothing jumped around while you read. Median: ~0.12.

INPtarget < 200ms
…

Interaction to Next Paint — click anything and this updates. Median: ~230ms.

IF A METRIC SHOWS "—", INTERACT WITH THE PAGE. THIS IS THE SAME STANDARD GOOGLE RANKS BY — WE HOLD EVERY SITE WE SHIP TO IT.

Reviews

Don't take
our word for it.

Long relationships say more than long portfolios. Here's what the people who pay our invoices say — verified, word for word, on Clutch.

Unlike other companies we spoke to, they explained clearly the work that needed to be done and how much it would cost. Patient, honest and very helpful — a rare find.
FounderTrova Trails · mobile app development
They were so professional and organized that I couldn't find any flaw. EM2 has far exceeded my expectations — communication was so smooth, really impressive.
Co-FounderEcoGofer · delivery platform
They are professional and very cooperative — all is done timely and as planned. The product is used all over the world and was downloaded to numerous phones.
Education SecretaryESPGHAN · clinical guidelines platform
5.0 on Clutch.co Read all 4 reviews →

How we work & what it costs

Not a price list.
A path.

There's nothing to choose here — every project walks the same four steps. You always know where you are, what it costs and what you get. And what we quote you is what the next client is quoted for the same thing.

First contact

Free · 30 min

Intro call

We meet, you talk, we listen. If we're not the right fit for your project, we'll tell you — and point you somewhere better.

  • Honest first assessment
  • No obligation, no pitch deck

Full estimation

2,000€ max · fixed

Discovery week

A few days — one week tops. Your idea becomes a plan, documentation and a mockup and it ends with a fixed offer for the build.

  • Plan, docs & mockup — yours to keep
  • Even if you walk away

The build

Fixed offer · by scope

Development

We build exactly what the offer says and you watch it happen — working software every week, not a report every quarter.

  • Weekly demo, transparent backlog
  • Code yours from commit 1

Yours. Truly.

0€ · our bugs, forever

Handover & after

Full walkthrough, documentation and the keys. Errors in production are on us — free, forever. New ideas get a new fixed offer.

  • No lock-in — you own everything
  • New features → new fixed offer

All prices excl. VAT · every offer itemized before we start · AI workflow automation on request · NDA-friendly

Before anything else

See it built at
EM2 AI Studio.

Every project starts here and it costs nothing: you describe the idea — a website, an app, a platform — and watch it take shape on the screen in front of you. The mockup is yours either way, whoever ends up building it.

  1. 01Book half an hour, or walk into the Kutina studio.
  2. 02Talk it through while an engineer builds it in front of you.
  3. 03Leave with the mockup and an estimate someone can defend.
Get a demo at the Studio Or estimate it in 2 minutes

The estimator is the AI on its own, from a form — instant and nobody calls you. The session is the same tooling with an engineer in the room. Start with either.

Sit down with us
30 min
A working mockup and an estimate someone can defend. Free.
Or do it yourself
2 min
Seven questions, a rough range, your own offer page. Nobody calls you.
Either way
0€
And the mockup is yours, whoever ends up building it.

FAQ

Asked before,
answered honestly.

Who owns the code?
You do. Code, designs, infrastructure, accounts — all of it, from commit one, in writing. This includes everything from the discovery sprint even if you never build with us.
What does a typical project cost?
The first 30-minute call is free. A discovery week — plan, documentation and often a mockup of your idea — is capped at 2,000€. The build is quoted as one fixed offer by scope: no two projects are alike, so rather than publish brackets we would only have to walk back, we show you the number instead. On the free call we record what you tell us, turn it into a working mockup and an estimate with the reasoning attached and hand both over whether you build with us or not. If you want a rough figure before talking to anyone, the two-minute estimator at EM2 AI Studio will give you one from a form. After launch, production errors are on us — fixed free — and new features are quoted as separate fixed offers. Everything starts at EM2 AI Studio, whether it's a website or a platform.
How fast do we see something real?
The discovery week delivers the plan, documentation and often a clickable mockup within one week. From build start, Phase 1 puts a production-ready skeleton with your first use cases live in 2–6 weeks — with a demo every week.
Can you work with our existing team or codebase?
Yes — a large part of our work is embedding into existing products and delivery processes, often under strict compliance and security requirements. We're comfortable being guests in your house.
What stack do you build on?
Java/Spring Boot backends, React Native + Expo mobile apps, Angular and Next.js frontends, PostgreSQL — plus payment and in-app purchase integrations, RFID venue hardware and large-enterprise systems (Oracle, DB2). We pick per project and tell you why in plain language.

Send a brief

Real conversations start
with real questions.

The best thirty minutes you can spend on this: book a call, or come into the Kutina studio. You explain it, we build you a mockup and a real estimate off the back of it, free. Prefer to write first? Send a brief — our CEO reads every one, first reply within 24h.

Križevačka 11, Osijek

Every brief is read by our CEO personally. NDA available on request. We use what you write here to reply and nothing else — privacy notice.

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