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Top Google Cloud company on Clutch · Serbia 2026

Your App, Built for a Fixed Price. Yours to Own.

Most builds cost €12,000–€25,000, go live in 6–10 weeks, and are in your name from day one.

Driver apps, booking systems, customer portals, online stores, and the back-office tools behind them. We're a team of five in Novi Sad, Serbia, working with small businesses across the UK, the EU, and the US. You talk to the designers and developers building your app, never an account manager. The price is agreed before we start, and it doesn't move unless you ask for more.

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Paun Technology
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Who we are

Most small businesses don't have a technical person on the team. That's what we are. We're five people in Novi Sad, Serbia: two developers, a designer, a DevOps engineer, and a project manager, led by founder Petar Paunović, who is on every project. We work with businesses in the UK, the EU, and the US on Central European time, so we overlap with the whole London working day and the New York morning. We help you decide what to build, agree a fixed price, build it, and stay on to fix and improve it. You never pay for work you haven't seen, and everything we build belongs to you.

You run the business. We handle the technology.

From Idea to Launched App

Three steps, handled by the same senior team: plan exactly what to build, build it for a fixed price, then keep improving it after launch.

01Plan.

In one week, for €1,200, we turn your idea into a priced plan: what to build, what each part costs, and how long it takes.

  • What you get: A written plan listing every screen and feature in priority order, with a fixed price and timeline for each. It's the document the build is held to, so there's no argument later about what was included. The plan is yours to keep, whether you build with us or anyone else.

  • What we do: Two or three workshops with you to understand your business and your customers, a list of every screen and feature, a technical plan for how it all fits together, and an estimate of monthly hosting costs. If you go ahead with the build, the €1,200 comes off the price.

  • One-Week Plan
  • Feature List
  • Technical Plan
  • Hosting Setup
  • Cost Estimate
  • Where AI Helps

02Build.

We build your app for the price in the plan and show you a working version every two weeks, so you see real progress, not status reports.

  • What you get: You can follow along without reading any code: a live demo every two weeks, a shared to-do board showing what's in progress, and 30 days of free fixes after launch. The code and hosting accounts are in your name from day one. Want something extra mid-build? We price it in writing before we do it, and you can say no.

  • What we do: Design and development of the whole app, including user logins, online payments, and an admin panel for your team, then putting it live on hosting you own. You pay in three stages, 30% upfront, 30% when you approve the designs, and 40% at launch, each one after you've seen the work.

  • User Logins
  • Online Payments
  • Admin Panel
  • Launch & Hosting
  • Fixed Price
  • You Own the Code

03Grow.

After launch, we keep improving your app for a fixed monthly fee, from €1,500 a month, so you don't need to hire your own developers.

  • What you get: A predictable monthly cost covering bug fixes, new features, speed improvements, and advice as more people use your app. Unused hours roll over for a month. Pause or cancel with 30 days' notice.

  • What we do: 10–20 hours a month of senior developer time, a planning call every two weeks, a task list you prioritise, connections to tools you already use (like accounting or email software), and changes that keep the app fast as you grow.

  • Monthly Plan
  • Speed Improvements
  • Connect Your Tools
  • Room to Grow
  • Bug Fixes
  • Planning Calls

Recent Work

Three businesses like yours, before and after their app. Every one was a fixed price, delivered to the price.

Our Products

We also run apps of our own. inkedme was designed and built by the same team that would build yours, and we still run it today.

  • inkedme

    Find your tattoo artist and book your next piece.

    Browse tattoo artists' portfolios, request a booking, agree the details, and pay your deposit — all in one conversation instead of scattered DMs.

    • Artist portfolios and reviews
    • One thread per booking
    • Deposits paid in-app
    • Sessions synced to your calendar
    Open inkedme (opens in new tab)

What Our Clients Say

Business owners on what changed after launch, in their own words.

They joined our engineering team for six months to build an internal tool our analysts now use every day. Clean code, documentation we could actually follow, and when they left we were able to run it ourselves. That last part is rarer than it should be.
Djordje StojiljkovicTechnical Lead · AVIV Group

Pricing

Real numbers, so you can decide whether a call is worth your time. Every project gets an exact fixed price in the Planning Week, and it doesn't change unless you ask for more. Prices in euros, excluding VAT. Pay in stages. No hourly billing.

Start here

Planning Week

One week, fixed price

€1,200Credited in full against your App Build

How it works

One focused week to review your idea, decide how the app should work, and write a plan with a fixed price and timeline for every screen and feature. That plan is what the build is held to. If you go ahead with an App Build, the €1,200 comes off the price.

Ideal for

Every project starts here. It's also the right choice if you want a priced plan before committing: the plan is yours to keep, whether you build with us or anyone else.

App Build

Fixed features, fixed price

€9,000–€35,000Most builds land between €12,000 and €25,000

How it works

We build exactly what's in the plan, typically user logins, online payments, an admin panel, and hosting set up in your name. You pay 30% upfront, 30% when you approve the designs, and 40% at launch, each after you've seen the work. Anything extra mid-build is priced in writing before we do it. Includes 30 days of free fixes after launch.

Ideal for

Businesses ready to launch a real app for real customers: a booking system, a driver app, a customer portal, a store, or a tool that replaces a spreadsheet.

Monthly Support

10–20 hours a month

€1,500–€2,800Per month, depending on hours. No long contract

How it works

A fixed monthly fee for a set number of senior developer hours, from the same people who built your app. A planning call every two weeks, a shared to-do board, and a task list you prioritise. Unused hours roll over for a month. Pause or cancel with 30 days' notice.

Ideal for

Businesses with a live app that need ongoing fixes and new features, without hiring a full-time developer at €4,000+ a month.

What You Can Count On

The terms we work by on every project, agreed before any work starts.

Certified by Amazon, Microsoft & Google

Your app will run on cloud servers, and the hosting bill is yours for as long as the app exists. Our engineers are certified on Amazon Web Services, Microsoft Azure, and Google Cloud, so we pick the one that fits your app and set it up in your name, sized for what you actually need. No oversized hosting bill, and no lock-in to us.

Microsoft Azure Developer Associate badge
AWS Certified Developer Associate badge
Google Cloud Certified Associate Cloud Engineer badge

More than 20 apps built and launched.

User logins, online payments, admin panels, and hosting setup are things we've built more than twenty times. Your project starts from parts that already work, which is how most builds go live in 6–10 weeks.

Frequently Asked Questions

The questions business owners ask us most before starting, including the awkward ones. Still unsure? Book a free 1-hour call and we'll answer them for your project.

How much does it cost to build an app with you?

App Builds run from €9,000 to €35,000, and most land between €12,000 and €25,000. A booking system with payments and an admin panel sits near the lower end; a driver app with a live dispatch board sits near the upper end. The exact figure is fixed in the €1,200 Planning Week, which comes off the build price. You pay 30% upfront, 30% when you approve the designs, and 40% at launch.

What if I want to change something mid-build?

You can, and most clients do. Small changes that don't affect the timeline, like wording, colours, or moving a button, we just do. Anything bigger is written up as a change request with its own price and its effect on the launch date, before we start on it. You approve it or you don't. The original price never moves without your written sign-off.

What if we disagree about whether something was included?

The Planning Week exists to stop this from happening. Every screen and feature is written down and priced before the build starts, and that document is what the contract refers to. If something's in it, we build it at the agreed price, even if it takes us longer than we estimated. If it isn't, it's a change request, and you decide.

Do I own the code?

Yes. The code, the hosting accounts, and every service the app uses are in your name from day one. If you ever stop working with us, you keep everything and can take it to another developer.

How long does it take to build an app?

Most apps go live in 6–10 weeks, depending on how much they need to do. We start with a Planning Week to agree the features, then build in two-week steps, showing you a working version after each one.

What if my business grows and the app needs to do more?

We build with growth in mind from day one, so more customers won't mean starting over. When you need changes, like new features, more users, or connections to other tools, Monthly Support gives you senior developers without a full-time hire.

What happens after my app launches?

Every App Build includes 30 days of free fixes after launch. After that, you can move to Monthly Support from €1,500 a month, or hand the app over to your own team. We document everything so anyone can pick it up.

Who will I actually be working with?

The people building your app. We're a team of five: two developers, a designer, a DevOps engineer, and a project manager, and founder Petar Paunović is on every project. There's no sales team and no account manager, so the person on your calls is the person writing the code. Your project is never handed to a subcontractor.

Where are you based, and who do you work with?

Novi Sad, Serbia, on Central European time. Most of our clients are in the UK, Germany, the Netherlands, and the US. We overlap with the full London working day and the New York morning, so you get same-day answers. Calls and contracts are in English, and invoices are in euros.

Book a Free 1-Hour Call.

Tell us what you want to build. You'll talk to the people who'd build it, and leave with a rough price, a rough timeline, and a clear next step. No sales pitch, no follow-up sequence.

What happens on the call

  1. Tell us what you want to build and what it should replace.
  2. Get a rough price and timeline on the call, not in a proposal two weeks later.
  3. Leave with a clear next step, even if it's not us.