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App & Product Design (UX/UI) for Startups

Brand and product must feel like one: the app is often the touchpoint your customers see most.

Updated: September 2026

The agencies in our analysis offer UX design, prototyping and UI design through to implementation. What matters for startups: test early with a prototype before spending on development.

Questionnaire: App & product design (UX/UI)

The more precisely you answer, the more precise the quote – without follow-up calls. Required questions are marked.

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What's included

App icon

€500 – €1,600

The icon on the home screen – designed for iOS and Android in all required sizes.

UX research & user tests

€3,200 – €12,800

Interviews and tests with real users to find problems early – before and during design.

UX/UI design (iOS, Android, web app)

€12,800 – €64,000

Design of all screens and flows for iOS, Android or as a web app: user experience (UX) and interface (UI).

Clickable prototype (MVP, investors)

€4,800 – €16,000

A clickable prototype that feels like the real app – for user tests, the MVP and investor meetings.

Design system / component library

€8,000 – €32,000

A library of all building blocks (buttons, forms, colours, spacing) so your developers build fast and consistently.

Guide price: Guide value for agencies and studios, excl. VAT, printing, production and third-party costs.

How it works

Discovery

Goals, users and core flows.

UX

User flows and wireframes.

UI & prototype

Visual design and clickable prototype.

Handover

Design system and files for development.

Duration: Prototype for an MVP: usually 4–8 weeks. Full app design: 2–4 months.

Frequently asked questions

Does the agency also develop the app?
Some do, many work with development partners. State in the questionnaire whether you have your own developers.
What do I need for a good quote?
The main user flows, the platforms and the approximate number of screens.
Is a prototype worth it?
Yes. It costs far less than development and shows early whether users understand the app.

Questionnaire: App & product design (UX/UI)

About 10 minutes. The more precise your answers, the more precise the proposal – and the fewer calls you need.

Take your time – you don't have to do it all at once.Your answers are saved automatically in this browser. Fill in the brief in two or three sessions: close the window, come back later – everything you entered is still there. To continue on another device, save your answers as a file.

1. Your startup

The basics every agency asks first.

Stage

Business model

Target markets

2. What you need

From strategy and logo to web portal, app and trade-fair booth.

What do you need? Tick everything that applies. Grouped the way branding agencies structure their services. Not sure where to start? Select the essential kit – you can add or remove items afterwards.

Nothing selected yet

★ = essential kit every startup needs

App & product design (UX/UI)

Add more services

Brand strategy & positioning

Naming & corporate wording

Logo & corporate design

Business stationery

Website, web portal & e-commerce

Pitch deck & investors

Marketing, campaigns & editorial

Packaging design

Trade-fair booth, signage & space

Launch, film & photo

PR & communications

Employer branding & culture

Ongoing support (per month)

3. Starting point

What exists already and where the brand should go.

Why now? The trigger for the project.

What already exists?

What must stay?

at least 20 characters

Interested in a digital competitor analysis?How your competitors show up online: website or shop, which pages and search terms (keywords) bring them the most traffic, social media (Instagram, Facebook, LinkedIn, TikTok), apps and ads. Many agencies do this together with SEO and online-marketing partners.

Brand characterMove the sliders – the middle means «no preference».

PlayfulSerious
ClassicModern
AffordablePremium
UnderstatedBold
Warm & humanTechnical & precise
4. Budget & timing

The two questions that decide whether an agency can help you.

Budget for this project Excl. VAT. A realistic range saves everyone time – agencies scale the scope to it.

Is the budget approved?

Payment models you are open to

Would you be willing to pay part of the fee in company shares (equity)?Some agencies work with startups partly in exchange for a stake – this can lower the cash amount. Whether it is possible is always up to the agency.

How fixed is the deadline?

5. Working together

So you are matched with agencies that work the way you do.

Who makes the final decision?

How do you want to choose an agency?We do not forward requests for unpaid creative pitches.

Location of the agency

Preferred agency size

Experience with agencies

Should the agency also take care of legal protection?Trademark search and registration for name and logo, design protection, domains and transfer of usage rights. Agencies usually coordinate this with an IP lawyer. Patents protect technical inventions and are a matter for a patent attorney, not a branding agency.

6. Contact

Who the agencies should talk to.

Preferred first contact

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