AI-supported workflows, engineering discipline, fixed pricing.
In our experience the same handful of mistakes keep repeating. These are the ones we watch for the most:
By the time the system is ready, it's no longer what you wanted when you ordered it half a year ago. Your business keeps moving; the developer doesn't keep up.
The software ships, you start using it, and only then do you find out what doesn't work. Fixing it after the fact is always far more expensive than building it properly the first time.
You pay, you wait, and only see something weeks later. By then it turns out you were misunderstood, but there's no time to start over.
Verifying software takes time and money, so it often gets shortened. The result: you find the bugs 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 frighteningly expensive.
An experienced developer paired with today's AI tooling works faster, cheaper and far more transparently. No jargon, in plain language you can follow.
Simple: you get a better product faster, for less money. Here's why, in detail:
Serious software development is still engineering work: design, decisions, code review, testing. AI tools speed this up because for the routine pieces (boilerplate, basic tests, documentation) the developer reaches the finished result in a fraction of the time. Their attention goes where it actually matters: solving your business problem. The result: what used to be 6 months is now 5–8 weeks, at the same professional standard.
Not PowerPoint reports or written descriptions, but a clickable sample where you can walk through the future product the way it will actually look and behave. Before any real development begins, you see what you're getting, and if something isn't right, you say so in the first week, not months later when you've already paid for everything.
Every week you get a short progress summary, and as soon as there's something meaningful to show, we show it. You don't have to blindly trust the developer. You can ask at any time where we are and what's next. You have continuous visibility into the work, not just an end-of-project reveal.
We build the system from the ground up to be testable, and tests get written for every feature as we go. This isn't something the AI ensures. It's a strategic choice and methodology: we follow principles where software is genuinely tested end-to-end before release. The result: bugs surface during development, not when one of your customers calls to say something is broken.
Faster work + fewer bugs + automated tests = the investment pays back sooner, and maintenance is significantly cheaper. A project that used to mean much more time and a much higher cost now ships with a shorter timeline and at a better price, at the same or better quality.
The answer: AI-supported workflows with engineering discipline. AI brings the speed, humans bring the accountability and the quality. Here's exactly who does what, and how we make sure faster development doesn't come at the cost of reliability.
Simply put: with the developer steering, AI helps produce code in a fraction of the time that used to take days, but you still have to work with it. Accountability and the final call always stay with the engineer. That's how we can be faster and more reliable at the same time.
We've been building business software for 16 years. 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's faster and cheaper 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. Honest opinion, backed by 16 years of experience.
Transparency, fast feedback, measurable milestones. We don't make promises. We show you.
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.
Once you sign off on the sample, real development begins. With AI-supported workflows we work significantly faster than traditional hand-coding. 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.
Zooming in on step 02 of the process: for a small-to-medium project this is typically 1–2 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 brings the speed; 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 1-hour intro: we cover what you need, what you have in mind, and whether the two sides fit each other at all. If yes, we move on toward detailed design from there.
Describe in a few sentences what you'd like to build, even if it's just an idea. We reply within 24 hours and set up a free consultation.
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