UI/UX Design

UI/UX design is the work of planning how a digital product is used and how it looks: the user flows, the screens, the reusable components, and the visual identity. It is for companies building or redesigning a mobile app, a web app, or a website who want a design that is ready to build. CompletApp is a Budapest-based product studio that designs and builds under one roof, working in Hungarian and English at a fixed scope and a fixed price.

You get product design that looks premium and earns its keep: interfaces people enjoy using and that move them toward the action your business needs. We design for mobile apps, web apps, and AI products, and because we build too, the design survives all the way to the live product.

Most products do not fail for lack of features. They fail because they feel generic, confusing, or untrustworthy. We design the opposite: clear flows, considered detail, and a visual identity that makes your product feel like one a serious company shipped. Good design is not decoration here, it is how the product earns attention and converts it.

We design complete product experiences, and you receive them as one coherent, build-ready set rather than a folder of disconnected mockups:

• User flows and wireframes: the route that gets someone from intent to done.
• Interface screens with their states, and a prototype you can review before a line of code is written.
• A design system: tokens for colour, spacing, and type, plus the reusable components built on them.
• The visual identity that ties it together.

On full payment, all rights to the design assets transfer to you, the same as the code. That holds for a new product and for a redesign of an existing one.

We start from what the product needs to achieve and the people who use it, then shape the structure and the look around that. The result is design that works for real users and real goals, not just a pretty portfolio piece.

Two projects show the work. On Copywise, an AI copy generator, we designed and prototyped the interface in Figma, built a modular layout where every copy type can be previewed, stored, and swapped, and delivered the product’s first full UI redesign. On Frendex, a local services booking app, we built a token-based design system and responsive rules, then held every screen to them across two audiences, two languages, and both phone and tablet.

The usual problem with design is the handoff: a polished design hits development and quietly loses its spacing, motion, and detail. We remove that gap. The same studio that designs your product builds it, whether that is a cross-platform app or a custom website, so what you approve is what ships. On our own site, for example, the dark and the light theme are both driven by shared design tokens in Tailwind CSS. One team is accountable for how it looks and how it works, which is faster, cleaner, and far less frustrating for you.

A premium look and strong conversion are the same job, not competing ones. We design the hierarchy, copy layout, and flow around the outcome you care about, so the path to sign up, buy, or act is obvious. The product feels considered and trustworthy, and that feeling is what turns visitors into users.

We agree the full scope and a fixed price before we begin, then work in short, reviewable stages so you see the direction early and can steer it. You get design you are proud of, delivered without the drift and surprises of open-ended projects, and ready to build.