Every project is led end to end by one lead developer, supported by a complete AI team. A fixed-price quote after discovery.
In our experience these are the most common pitfalls, and the ones we watch for the most:
Meanwhile your business changes, and what you finally get is no longer quite what you need.
The software ships, you start using it, and only then do you find out what doesn't work. Fixing it after the fact usually costs more than catching it early.
You only see something weeks later, and that's when it turns out you meant different things. By then changes cost time and money.
Thorough testing takes time and money, so it often gets shortened. Then some of the bugs show up in production, in front of your customers.
You have a 5–10-year-old program that works but is slow and clunky, and a full replacement looks too expensive.
An experienced lead developer working with today's AI tools delivers for a fraction of the traditional cost, and you can see where the work stands all along. No jargon, in plain language.
In short: thoroughly tested software for a fraction of the traditional cost. In detail:
Serious software development is still engineering work: design, decisions, code review, testing. AI tools take over the routine work, so the developer's time goes into solving your business problem. Based on industry experience, a small or medium internal system used to need a development team of typically 3-4 people, and comprehensive automated testing, which keeps the system stable and easy to extend for years, pushed that cost even higher. Today, with the right methods, every project is led end to end by one lead developer, supported by a complete AI team, for a fraction of the traditional cost, including a large suite of automated tests. We can give you the exact scope and price after the one-hour call and the discovery phase. For a small or medium project, discovery typically takes 1–4 weeks.
Before development starts, you already see your whole system working on a clickable prototype, the way it will look in production. During this phase you can change it step by step, so if something isn't right, you say so now, not after you've paid for everything.
Every week you get a short summary of where we are, and as soon as there's something to show, we show it. You can ask anytime what's done and what comes next.
We build the system to be testable, and every feature gets automated tests. That's a matter of method, not something we leave to the AI. So bugs surface on our side, not when one of your customers calls to say something is broken.
Fewer bugs and plenty of automated tests: the investment pays back sooner and maintenance costs less. The system is built for a fraction of the traditional cost, at the same or better quality.
The answer: AI-supported workflows with engineering discipline. AI takes over the routine work, humans bring the accountability and the quality. Here's exactly who does what, and how we make sure a smaller team doesn't come at the cost of reliability.
Simply put: with the developer steering, AI helps produce the routine code, but you still have to work with it. Accountability and the final call always stay with the engineer. That's why one lead developer with an AI team is enough per project, and why the work stays reliable.
We build business software. These are the kinds of systems we're strong at:
An online service or interface used by your own customers, partners or users: a booking system, a customer portal, a registration or self-service flow, an online service, or a custom webshop when you need more than what a templated shop engine can offer. Works perfectly on phone and on desktop, secure, and handles many concurrent users.
Software your team uses internally every day: customer management, inventory, invoicing, reports, internal document handling or workflow tools. The goal is that every colleague sees the same data, no more chasing things across Excel, email and paper, and what you enter once stays found. It scales to hundreds of concurrent users, reliably, for years.
Custom mobile applications for iOS and Android, whether for your customers or for your internal team: bookings, customer relations, field data capture, push notifications. We build both platforms from a shared codebase, so it costs less than two separate apps, and it feels native, fast and reliable on a phone. We can wire it to your web system so the data is the same everywhere.
Have an older program that works but is slow, clunky or no longer maintainable? Let's take the operating logic you and your team are used to and which has proven itself, and rebuild it on modern technology: fresh, fast, secure and extensible. Instead of fighting the old system, you get a clean, well-maintained foundation built for the next 10 years.
Not sure you should be building at all? We sit down with you, work out what you actually need, what it would cost, how long it would take, and help you decide whether to commission it, build it in-house, or perhaps an off-the-shelf product is enough. You get an honest opinion, even if the answer is that you don't need custom software.
We start with a free initial consultation. Based on it, we design the system at a fixed price, step by step, so from the very beginning you see on a live prototype how it will work. After that, in a separate offer, we give a fixed price for development that covers everything we recorded during design.
We sit down with you and talk through what you need, how your company works, what the goal is. We ask a lot of questions, because everything depends on this part.
Not a pen-and-paper sketch or a written description, but a clickable, real-looking sample: final colours, typography and layout, exactly the way the finished product will look. You click through the whole flow, you see the screens and the navigation logic before a single line of production code is written. So we can freely change things until it's exactly what you wanted. For larger projects, we agree on the scope and timeline of the sample together after the consultation.
Once you sign off on the sample, real development begins. Every project is led end to end by one lead developer, supported by a complete AI team, tests included. We send a status update every week, and as soon as there's something meaningful to demo, we show it.
Every feature comes with automated tests, and AI reviews the code as well. Bugs surface before you'd ever run into them.
We set it up so it's available on the internet, hand over the documentation, and train your team. And if you need help later, we're still here.
Projects used to start with a business analyst spending weeks writing a long specification that the client signed off on paper. After that, the client didn't see what they were getting for months, and if something didn't work the way they had pictured it at handover, changing it was expensive and slow. Today AI has changed this. We stay in constant contact with you, and before development starts you already see your whole application on a live prototype. During this phase you can change it quickly, step by step.
Zooming in on step 02 of the process: for a small-to-medium project this is typically 1–4 weeks, the weeks that decide whether the finished product is really what you wanted. Transparent, step by step, with tangible deliverables.
We sit down and go through, point by point, how your business runs, what the goal is, and what hurts the most today. We ask a lot of questions, because this is what determines whether you end up with what you actually need.
From the conversation we work out what screens and steps the system needs and how they connect. This is where the logic of the system is decided, before we build anything.
Not a sketch or a written description, but a real-looking, clickable sample with final colours and typography. You walk through the full flow and ask freely for changes until it's exactly what you wanted.
Based on the approved sample we give you a written, itemized quote for the full development at a fixed price. From here you know exactly what you'll get and what it will cost, with no open-ended invoices.
If we continue with the full build, we credit the assessment fee against the total project price. And because at this point there's no production code yet, we can change anything freely, and nothing has to be thrown away.
You don't have to imagine it. Try it right here. You can explore two live samples: a mobile fitness app and a custom web CRM. Each is the prototype of a small-to-medium project, fully clickable, exactly what you'll get at the end of the design phase:
Over more than a decade and a half we've delivered solutions across many industries. A large share of our clients are under NDA, so the case studies below are presented anonymously, but the essence comes through nonetheless.
For a leading domestic investment-grade gold and precious-metals dealer we ran a full architectural audit, stood up the internal development team, rolled out AI-supported development workflows, and carried out comprehensive performance optimization.
We provide architectural leadership for a market-leading HR system. A long-term technical partnership: technology decisions, scaling and integration plans.
We built custom internal dispatch and fleet management systems for several passenger transport companies, and handled operations and continued development as well.
We designed and built IP-based enterprise communications systems, including the full infrastructure and the software layer on top of it.
For a Hungarian pharmaceutical manufacturer we built a strictly regulated, auditable internal document management system, compliant with industry requirements.
For a nationwide service provider we built a high-throughput messaging and notifications platform that handles tens of thousands of transactions every day.
Beyond these we've delivered numerous other projects in finance, manufacturing, healthcare, education and e-commerce.
I'm Zoltán Keresztes, the founder of Cloud Call. I've been building software for over 16 years, eight of them as a software architect. AI takes over the routine work, and I bring the experience and the accountability. Here's how I work, in a minute.
We didn't start programming alongside the AI. The fundamentals are solid, the experience is real.
Software used daily by thousands of users. Yours will be in safe hands, no matter the size.
No hidden costs or surprise “extras”. Everything is in the first quote, in writing, line by line.
The finished product, the source code and the documentation are all yours. If you ever want to continue with someone else, you can.
Not a quick gig followed by a disappearing act. A good project is a long-term relationship for us, too.
We start with a free, one-hour conversation: what you need, what you have in mind, and whether we're a good fit. If we are, we move on to discovery.
Tell us the main problem, even if it's just an idea. We reply within 24 hours on business days.