Custom software. Faster than you think.

We develop what your project needs – from a small tool to a complete application. Agile, in short iterations and with AI agents that take on most of the programming work. That makes us extremely fast and the price attractive. Experienced developers make sure the result also holds up in operation.

Discuss your idea How we work

First version within a few days
AI agents plus developers from 480+ projects

gemelo.AI · Example: booking for group tours

Your requestWe need online booking for group tours – with a calendar, confirmation by email and a list for the ticket desk team.

Agents and team

Request broken down into requirements
Data model and interface designed
Calendar, booking and emails implemented
48 automated tests passed
Review by a gemelo developer

Preview is onlineto try out – your feedback goes into the next round

A tool you can’t buy. An idea that needs trying out quickly. An application that used to be too expensive.

We build it. Now.

AI agents write the code, we make sure it’s right.

Everything you want

Web application, app, media station, interface, analytics or the small tool for everyday work: we build exactly what your project needs – not whatever a standard product happens to do.

Extremely fast

AI agents write code, tests and documentation while we’re already discussing the next step with you. After a few days, you click through a first version – after that, you see progress at short intervals.

Attractively priced

Where agents do the legwork, we need fewer hours. You’ll notice it in the quote – with no compromises on care, testing or operation.

Process

Agile, in short iterations.

No requirements specification up front, no months of planning: we start small, show something working early and refine it together with you.

Tell us
A conversation, a sketch or an example is enough. We capture what matters and propose the first step – with effort and price.
Try it out
After a few days, a first version is up at a preview address. No slides, no pretty pictures: software you can click through.
Refine
You tell us what’s missing or should be different. The agents implement it, we review and test – round by round, until it fits.
Run
We put the software into operation, maintain it and develop it further. Or we hand it over to your team, documentation included.

Examples

What we build with gemelo.AI.

Web applications & portals

Booking, registration, administration, customer portal – in the browser, on any device.

Apps & media stations

For tablet, smartphone, terminal or the exhibition – with everything we have learnt from more than 480 projects.

Interfaces & automation

Connecting systems that don’t talk to each other: syncing data, automating processes, replacing Excel lists.

Analytics & dashboards

Figures from your systems in one place – up to date, easy to understand and without manual work.

AI in your application

Chat, search across your own documents, translation, summarisation, text recognition – built in where they genuinely help.

Replacing legacy software

The application nobody wants to touch any more: rebuilt, with everything that has proven itself – and without everything that always got in the way.

Prototypes

Making an idea tangible quickly – for an internal decision, a funding application or a tender.

Tools for everyday work

The small program that saves an hour every day – and was never worth it until now.

Multilingual & accessible

Translations, Easy Read and accessibility considered from the start, not bolted on afterwards.

Quality

Fast, but not sloppy.

“Vibe coding” is enormously fast – and risky without experience. With us, the agents don’t work alone: experienced developers set the direction, review every change and take responsibility for what goes into operation.

Every change reviewed by a human before it goes live
Automated tests that run with every change
Version control and documentation – traceable rather than a black box
Data protection considered from the start, on your own servers if required
Operation and maintenance from a single source – with our IT Services if required

Good to know

What people often ask.

What does “agent-based” mean – and what is “vibe coding”?

With vibe coding, software is created in conversation: you describe what you want, and AI builds it. AI agents go a step further – they independently plan, write, test and correct entire work packages. With us, experienced developers steer these agents and review their work. You get the speed without the risk.

Do we need a requirements specification?

No. A conversation, a few examples or a sketch are enough to start with. We refine the requirements together using the working version – that’s faster and more precise than any document drawn up in advance. If you already have a specification, we’ll of course be glad to use it.

What does it cost?

That depends on the project. Because agents take on a large part of the programming work, the effort is usually well below that of conventional development. After the first conversation, you’ll receive a quote for the first step – and decide afresh after each round.

Which AI do you use?

For development, current AI models for programming, depending on the task. If your application itself needs AI features, we choose the model to suit your data protection, cost and quality requirements – including, if you wish, one that runs on your own premises.

Tell us your idea.

A short conversation is all it takes – afterwards you’ll know what the first step looks like, how long it will take and what it will cost.

Discuss your idea +49 40 355306-0

By the way: this website was built the same way – with AI agents, reviewed and run by us.