Validate
Design sprint
- Speed
- Depth
- Scalability
BEST FORTesting an idea in 1–2 weeks
UX/UI design services for mobile apps and web products
Design that users understand on the first try.
We research your users, design clear flows and build design systems your developers love — for mobile apps, web platforms and AI products.
- Clutch rating
- 4.8 / 5
- apps shipped
- 200+
- users reached
- 10M+
- reply to every request
- < 24h
figma.com · YourAppIn review
USER RESEARCH · 12 INTERVIEWS
“I give up at the payment step”“Too many fields to fill”“I want to pay with Apple Pay”“Can’t find order history”“Love the product photos”“Shipping cost is a surprise”
Top insight: checkout has 3 extra steps and hidden shipping costs — fixing both is the biggest win.
Real user insights before a single screen is drawn
What we design
From research to a pixel-perfect handoff.
Each step can be ordered separately or as one design project.
User research
Interviews, surveys and analytics to learn what users really need.
- Interviews
- Personas
UX audit
Find what stops users in your current product — with fixes ranked by impact.
- Heuristics
- Analytics
UX & information architecture
User flows, navigation and wireframes that make every task simple.
- Flows
- Wireframes
Prototyping & testing
Clickable prototypes tested with real users before development.
- Prototypes
- Usability tests
UI design
Modern, on-brand interfaces for iOS, Android and the web.
- Mobile
- Web
Design systems
Reusable components and tokens that keep products consistent and fast to build.
- Components
- Tokens
Motion & branding
Micro-animations, illustrations and app branding that feel alive.
- Lottie
- Branding
Accessibility
WCAG-compliant designs that work for everyone.
- WCAG AA
- Explore the service →
AI product UX
Interfaces for chat, copilots and agents that people trust.
- AI UX
What we design
Interfaces for every platform.
Each platform has its own rules — we design for all of them.
Choosing a format
Design sprint, product design or a design system?
Start where you are today.
- Build
Product design
- Speed
- Depth
- Scalability
BEST FORNew products and redesigns
- Scale
Design system
- Speed
- Depth
- Scalability
BEST FORSeveral products or teams
Not sure?
A UX audit shows where to start.
How we design
Research, design, test — then hand off.
Every decision is backed by users, not opinions.
- 01 · RESEARCH
Learn
Users, competitors and your data.
- Interviews
- Analytics
- Competitor review
- 02 · UX
Structure
Flows and wireframes for every task.
- User flows
- Wireframes
- Prototype
- 03 · UI
Design
Visual design and the design system.
- UI screens
- Components
- Motion
- 04 · HANDOFF
Hand off
Specs and support during development.
- Dev-ready Figma
- Specs
- Design QA
Design that ships
Our designers work side by side with our developers.
- Tested with real users
- iOS & Material guidelines
- WCAG AA accessibility
- Dev-ready components
- Design QA during build
- You own all design files
Case studies
All use casesProducts we designed.
Travel · iOSJRNEY AI
UX for an AI trip planner — from chat to itinerary.
Fitness · iOS & AndroidSelfit
A home workout app with programs, activity rings and progress.
Healthcare · Web & mobileTelemedicine
Patient and doctor flows for a telemedicine platform.
View full case →
Tools
Our design toolkit.
Industry-standard tools your team can open and edit.
Design & prototyping
- Figma
- Sketch
- Adobe XD
- Framer
- InVision
- Marvel
Visuals & motion
- Photoshop
- Illustrator
- After Effects
- LottieFiles
Research & handoff
- Miro
- Notion
- Zeplin
- Storybook
- Jira
How we work
Design projects that fit your stage.
Fixed scope, clear deliverables.
- 01day 1
Kick-off
Goals and users.
- 021–2 weeks
Research
Interviews and data.
- 031–2 weeks
UX
Flows and wireframes.
- 042–4 weeks
UI
Screens and system.
- 051 week
Test
Usability tests.
- 06ongoing
Handoff
Specs and QA.
UX audit
from 1 weekFind and fix usability issues.
- Expert review
- Analytics
- Fix list
Product design
from 4 weeksFull UX and UI for your product.
- Research
- Prototype
- UI kit
Design system
from 4 weeksComponents and tokens.
- Figma library
- Docs
- Storybook
Designer on team
monthlyA designer in your sprints.
- Senior designer
- Your tools
- Flexible
FAQ
Questions about design.
How much does UX/UI design cost?
A UX audit starts around $3,000; full product design typically ranges from $10,000 to $40,000 depending on the number of screens and platforms.
Do you design for iOS and Android separately?
We follow each platform’s guidelines while keeping one consistent brand and design system.
Can you redesign an existing app?
Yes. We start with a UX audit and analytics, then redesign step by step without breaking what works.
Will developers be able to use the designs?
Yes — we deliver dev-ready Figma files, components and specs, and stay available during development.
Do you test with real users?
Yes, we test prototypes with real users before development starts.
What is included in UX/UI design services?
UX/UI design services at Perpetio include user research, UX audits, user flows, wireframes, clickable prototypes, UI design, design systems and a dev-ready Figma handoff — for iOS, Android and web.
What is the difference between UX and UI design?
UX design defines how a product works — user flows, structure and usability. UI design defines how it looks — layouts, colors, typography and components. Good products need both, designed together.
