App Design & UX/UI
Overview
Professional app design is not a purely visual discipline. It translates business goals, processes, data and user contexts into an interface that provides orientation, builds trust and remains technically viable. Especially in enterprise contexts, app design determines whether a product is quickly understood, efficiently used and cleanly implemented. allaboutapps works as a Vienna-based app design agency at the intersection of user guidance, interaction logic and technical feasibility.
Discover our work
What professional app design delivers in demanding product contexts
App design does not begin with individual screens but with the question of how people understand a product, what decisions they need to make and how domain complexity can be translated into clear interaction. That is why professional app design is always structural work - from information architecture through interaction logic to design systems.
UX starts before the first screen: Good user guidance does not emerge in the interface alone but from a solid understanding of target groups, usage situations, roles and process steps. Jumping into layouts too early produces attractive screens without clear logic. Professional app design therefore begins with structure: Which tasks are truly relevant? What information needs to be visible when? Where does friction, uncertainty or unnecessary steps arise? This groundwork produces an interface that not only looks good but holds up in daily use - whether as a mobile app, portal or digital platform.
UI makes domain complexity navigable: Digital products with multiple roles, states or data points need an interface that prioritizes what matters and makes complexity manageable. UI design in this sense is more than visual styling. It creates orientation, reveals relationships and reduces errors. Colors, typography, components and states must therefore be used not just consistently but functionally. Good UI helps teams and users understand faster what needs to be done.
Design systems and components create consistency: As a product grows, designing individual screens is no longer sufficient. What is needed are reusable components, consistent interaction patterns and a design system that facilitates collaboration between design, product and engineering. This reduces friction, improves quality and creates the foundation for implementing new features faster and more cleanly. An experienced app design agency brings this systematic approach from the very start.
Design and engineering should be closely integrated: App design delivers the greatest value when it is not conceived in isolation from technical implementation. States, data sources, form logic, responsiveness, accessibility and component architecture all influence early on which design decisions are viable. That is why design and engineering should not work sequentially but in close exchange. This way, what emerges is not a visual promise that becomes expensive or inconsistent in implementation, but an interface that works both functionally and technically.
Additional design expertise needs clear accountability: Where specialized design competence is brought in, it must fit into a clear accountability model. What matters are defined responsibilities, shared quality standards and close alignment with product and engineering. This ensures design does not remain an external exception but becomes a reliable part of the overall project. allaboutapps combines app design and UX/UI with technical implementation under one roof - so that good design becomes a viable product.
What our clients say
Got a question? We've got answers
Do you support products after launch?
Yes. The launch is typically not the end but the start of the next learning and optimization cycle. Ongoing development, stabilization, prioritization and new features should be understood as part of the product lifecycle.
Do you handle development only, or also product strategy, app design and UX/UI?
Both. Many projects don't start with finalized requirements but with open questions around scope, priorities, platform choice, interaction logic or design systems. That's why product strategy and app design are often part of the engagement from the very beginning.
What kind of projects is allaboutapps the right partner for?
allaboutapps is a strong fit when a company is looking for more than just implementation - a partner that combines product thinking, app design, UX/UI, engineering and ongoing development. We also help teams establish secure vibe coding setups and turn AI prototypes into production-ready software.
How long does it take to develop an app?
Development timelines vary significantly by scope. Simple apps can be delivered in roughly 2-3 months, while complex platforms with integrations, role models and extensive business logic may take 9 months or longer. Beyond development itself, planning, testing and certification play an important role. Our agile approach allows us to deliver initial versions early in the process.
How do I get a proposal for app development?
Getting a proposal is straightforward: reach out via our contact form or schedule an initial call to discuss your project idea and requirements. Based on that, we can provide a first cost estimate. If your requirements are already well-defined, we create a concrete proposal including scope, budget and timeline - giving you a transparent foundation for planning from day one.
How much does it cost to develop an app?
App development costs depend heavily on scope, complexity and required features. Simple apps with core functionality typically start at EUR 30,000-50,000, while custom platforms with complex integrations, user roles and backends require more investment. Factors like design, system integration (e.g. ERP, CRM), security requirements and cross-platform development significantly affect total cost. We recommend starting with a scope workshop to clearly define requirements and build a transparent proposal from there.
Can allaboutapps take over and evolve an existing application?
Yes, we regularly take over existing systems and apps from clients. We start with a code and architecture review to assess the current state of the software. From there, we can optimize, modernize or extend it with new features. If the existing codebase is no longer viable, we can also handle a migration to modern frameworks or a full technical redesign.
What does the app development process look like?
A typical project starts with a kick-off and a scope workshop where we define requirements and goals together. Our designers then create initial UX and UI concepts, closely aligned with the client. Development follows in agile sprints, giving you regular visibility into progress. After thorough testing - including automated tests, QA and usability checks - the app goes live in the app stores. We continue to support you with hosting, maintenance and ongoing development to ensure long-term success.
