Research-led design
for digital products

We’re Fortnight — a London UX/UI team designing award-winning web and mobile apps since 2014.

4.7
★★★★★on Clutch

Trusted by teams at

From first prototype to your next feature

✦ got an idea

Prototypes and MVPs

Turn your idea into a prototype you can test and pitch

↻ product feels dated

Product redesign

Bring your app up to date with clearer navigation and a fresh interface

+ users need more

New features

Design your next feature from the first user flow to the final screen

Working across industries with startups and the names you already know

Explore our product design work

Simba Sleep alarm settings displayed on a phone beside a sleep mask and branded card
Sleep & wellbeing
Top 20 in Health & Fitness in 6 weeks

Simba Sleep

Engineering the perfect night's sleep.
Thoughtful design for better sleep habits
Research
User flows
UX/UI
User testing
Mindful Chef recipe website displayed on a tablet beside vegetables and a branded card
Food delivery
Checkout conversion

Mindful Chef

Delivering delicious, healthy meals to one mobile user at a time.
Fresh UX for weekly orders and flexible subscriptions
Website redesign
UX/UI
Checkout
Gener8 app screens displayed on two phones with a branded card
Rewards app
1k daily app downloads

Gener8

Transforming Data Sharing and Earning
Simple design that connects data with rewards
Discovery
User flows
UX/UI
Data visualisation
Thursday dating app match screen displayed on a phone with pink branded cards
Dating
50% more app downloads

Thursday

Reinventing the singles club on a single day
A dating app redesign with a bolder look
App redesign
User journeys
UI design
Design system

End-to-end UX/UI design for your digital product

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Product strategy & discovery

Priorities and a scope for version one

Product strategy and discovery
​

User research & insight

What people need, where they get stuck

User research and insight
​

UX design & user journeys

Structure, flows and wireframes

UX design and user journeys
​

UI design & interaction

Final screens and states for web and mobile apps

UI design and interaction
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Prototyping & usability testing

Key scenarios tested before build

Prototyping and usability testing
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Design systems & handover

Components, docs and dev handover

Design systems and handover

A clear process at every step

  1. 01

    Understand the problem

    Explore your goals and user needs, then agree what the design needs to achieve.

  2. 02

    Map it out

    Create user flows and clickable prototypes, then test and refine them with real people.

  3. 03

    Design the details

    Bring the experience together with polished screens, reusable components and all the important states.

  4. 04

    Get ready to build

    Prepare clear design files and notes, then walk your developers through how everything works.

You’ll be working with a small senior team
with weekly updates
Weekly recap
regular syncs
Live sync
and an
AI-powered workflow
Faster rounds

Frequently asked questions

What’s included in product design?

We define the user journeys, map the key flows and create wireframes before designing the interface. Depending on the scope, you may also receive a clickable prototype, usability testing, designs for loading and error states, reusable components and a developer handover. We agree those deliverables before work starts.

Can you improve an existing app or platform?

Yes. We examine the current journeys, user feedback and product data where available to find the problem worth solving. Then we agree what to keep, what to redesign and how to test the change. Our article on turning research findings into product decisions explains that process.

Can you help if we only have an idea?

Yes. We help identify the first users, the task they need to complete and what the first version must include. We can turn that into a clickable prototype to test with users or show to investors before you commit to development. A prototype is not a live app.

Can you work with our developers?

Yes. We discuss technical constraints with them before finalising the UI. At handover, they receive organised design files, components, screen states and interaction notes, plus a walkthrough of the key journeys.

Do you also offer development?

Yes. You can commission product design alone or combine it with mobile app development for an iOS or Android product, Webflow design and development for a website, or branding if the product also needs an identity. We define the deliverables and price for each part of the work.

How long does a project take?

As a planning guide, a focused UX/UI feature or clickable prototype can take 2–3 weeks; a broader product design project can take 4–8 weeks. Recruiting users, testing several journeys or creating a design system may add time. Your proposal sets out the actual stages and dates.

How much does product design cost?

According to Clutch, focused UX projects in the UK can start at around £8,000; a full product redesign may cost considerably more. We price each project around what your product needs, from the journeys and screens involved to research, testing and developer handover. Tell us what you’re working on, and we’ll recommend a scope and give you an estimate.

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What do you need from us to get started?

Tell us who the product is for, what users need to do and what you want to create or improve. If the product exists, send a link and any feedback or data you already have. Your target date and budget range help us suggest a realistic first stage; a finished brief isn’t required.

Didn't find yours? Write to hello@fortnight.studio

Let’s talk about your product

Tell us what’s working, what isn’t and what you want to change. We’ll help you decide where to focus.

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