MOBILE APP DESIGN

Not every team can

design mobile app UI

that triples engagement
Our

mobile app design

services have delivered 3x longer sessions, 70% user retention, and 40% faster MVP launches. If that’s the kind of traction you’re after, we’re the team that makes it happen.
Your next growth stage starts with the right mobile app design services partner — at launch, or at scale

DESIGNING PRODUCTS FOR STARTUPS BACKED BY

phenomenon studio IN NUMBERS
98%

customer satisfaction rate

35%+

boost in conversions after redesign

50+

top-tier designers and developers on board

500M+

investments raised by our clients

BEFORE YOU HIRE A MOBILE APP DESIGN AGENCY

Read what most founders struggle with — and how our mobile app UI/UX design services fix it
Some mobile apps fail long before launch — not because the idea is weak, but because the design misses what real users (and teams) need. Here’s how our mobile application design company solves the problems you’ve already faced (or are trying to avoid).

People download our app, open it once, and never come back. We’ve tried everything, but nothing sticks.

As a top-rated mobile app design agency, we build flows that drive retention from the first tap. Through onboarding logic, habit loops, and emotionally intelligent UX, we turn installs into engagements by combining modern mobile app design with user behaviour insights.

It took us six months to get an MVP out — and by then, the investor we were talking to had already moved on.

We deliver mobile app design & development fast, without cutting corners. With lean sprints, cross-functional collaboration, and dev-ready Figma systems, we help startups launch 40% faster, without sacrificing quality.

Every time we try to add an app feature, something breaks. The UI looks nice, but it’s not built to grow.

We replace fragile design with scalable systems. Through modular libraries, mobile app interface design best practices, and components optimized for dev execution, we eliminate rework and support faster iterations as your product evolves.

OUR MOBILE APP DESIGN SERVICES

Your users don’t care how “slick” your mobile app looks if it doesn’t work
From early UX mapping to polished UI and development-ready design, our mobile app design and development services help teams enhance user engagement, boost in-app conversions, and reduce development rework. Here’s exactly how:
Fast, focused mobile app responsive design prototypes to validate core ideas.
Mid-fi prototypes

Interactive wireframes illustrating structure and flow for rapid stakeholder feedback and iteration.

High-fi prototypes

Pixel-perfect mockups with animations to simulate final experience and test visual polish.

MVP pack

Core screens and flows bundled into demo build for investors, pilots, or tests

Full-scope design for mobile apps tailored to user flows, business goals, and feature complexity.
UX audit

Identify usability gaps using heuristics, analytics, and interviews; prioritize actionable, high-impact fixes.

User-flow mapping

Blueprint optimal journeys, reducing friction, clarifying tasks, and guiding design decisions with evidence.

Wireframes

Low-fidelity layouts defining hierarchy and interactions before detailed visual design begins confidently.

Visual UI

Craft high-impact interfaces using colour, typography, and spacing for consistent, intuitive aesthetics.

Design system

Reusable components boost scalability, development speed, and team alignment across multiple products.

Visual and functional overhauls for products falling behind in usability, clarity, or growth.
Interface refresh

Modernize visuals, update styles, and enhance clarity without changing underlying functionality or structure.

Usability overhaul

Restructure flows based on analytics, improving conversions, retention, and overall user satisfaction metrics.

Brand alignment

Synchronize app visuals with brand guidelines, voice, and values for cohesive user experiences.

Motion upgrade

Introduce animations and micro-interactions that guide attention, reinforce feedback, and delight users effectively.

Accessibility tune-up

Refine contrast, typography, and navigation patterns to meet WCAG standards and inclusive design.

TYPES OF MOBILE APPS WE DESIGN

No one app fits all: explore the types of mobile apps we design and develop
Not every mobile product needs to be native, and not every hybrid should be. Our mobile app design & development company helps you choose the right format based on your product vision, users, and roadmap.
01
Native mobile applications
High-performance, intuitive apps built specifically for iOS (Swift) or Android (Kotlin).
Native mobile applications

Ideal for performance-critical mobile apps requiring seamless interactions and hardware access.

Let's discuss

Ideal for performance-critical mobile apps requiring seamless interactions and hardware access.

Let's discuss
02
Cross-platform native apps
A single shared codebase provides a native-like user experience across multiple platforms when using React Native or Flutter.
Cross-platform native apps

Best suited for startups rapidly building across platforms to capture wider market reach.

Let's discuss

Best suited for startups rapidly building across platforms to capture wider market reach.

Let's discuss
03
Hybrid mobile applications
Web-based technologies (Ionic, Cordova) packaged within native wrappers for faster build cycles.
Hybrid mobile applications

Suitable for content-driven or internal business apps needing quick deployment.

Let's discuss

Suitable for content-driven or internal business apps needing quick deployment.

Let's discuss
04
Progressive web applications
Browser-based apps delivering native-app experiences without app store constraints.
Progressive web applications

Quick-to-market solutions ideal for early validation or increasing web presence.

Let's discuss

Quick-to-market solutions ideal for early validation or increasing web presence.

Let's discuss
05
E-commerce mobile apps
Apps with optimized flows, mobile checkout UX, product catalogues, and integration with inventory and payment systems.
E-commerce mobile apps

Ideal for brands looking to grow DTC or marketplace sales through native mobile channels.

Let's discuss

Ideal for brands looking to grow DTC or marketplace sales through native mobile channels.

Let's discuss
06
SaaS mobile extensions
Mobile counterparts to desktop-first SaaS platforms, built for on-the-go access, feature parity, and user retention.
SaaS mobile extensions

Best suited for: SaaS companies extending key product functionality to mobile users.

Let's discuss

Best suited for: SaaS companies extending key product functionality to mobile users.

Let's discuss

OUR MOBILE APP DESIGN EXPERTISE

Inside our approach to

mobile app design & development

across industries we build in most
Different products call for different mobile app design strategies. Here’s how our design & mobile app development services adapt to real user behaviour, product logic, and go-to-market priorities — with examples from 120+ launches.
Fast, flexible mobile app UI/UX design services for complex SaaS products
Where mobile UX breaks:
  • Feature overload
  • Cluttered dashboards
  • No mobile parity
  • Confusing pricing flows
How we fix it:
  • Prioritized flows by role
  • Modular UI libraries
  • Billing & onboarding UX
  • Mobile-first navigation logic
Healthcare mobile app interface design for patient trust, care delivery, and compliance
Where mobile UX breaks:
  • Poor data clarity
  • Anxiety-inducing UI
  • No accessibility support
  • HIPAA misalignment
How we fix it:
  • Calming, intuitive visual language
  • Secure interface design
  • Accessible, ADA-compliant layouts
  • UX that supports care delivery logic
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Mobile app UI/UX design for motivation, accessibility, and structured learning
Where mobile UX breaks:
  • Boring UI
  • Poor content navigation
  • No mobile-optimized learning flow
  • Inconsistent user roles
How we fix it:
  • Role-specific UX (learner, teacher, admin)
  • Gamified UI for engagement
  • Offline-ready design for mobile study
  • Clear progress & achievement logic
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Trust-first fintech mobile app design that converts and retains
Where mobile UX breaks:
  • Cold, transactional interfaces
  • High user drop-off in onboarding
  • Overcomplicated money flows
  • Compliance friction
How we fix it:
  • Human-first onboarding
  • Clear financial journeys
  • Secure yet intuitive UX patterns
  • Design tuned for KYC, AML, PCI
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Mobile app design that makes crypto-native tools usable and human
Where mobile UX breaks:
  • Clunky wallet connections
  • Visual overload
  • No onboarding clarity
  • High drop-off post sign-in
How we fix it:
  • Simplified onboarding
  • Wallet-agnostic flows
  • Token/asset UX clarity
  • Clean visuals for Apps & dashboards
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Need to launch your mobile app?
Book a call with Kseniia Shalia, our account executive, to talk through your goals and get a clear path forward.

DESIGNING MOBILE APP FEATURES THAT MATTER

From onboarding to analytics, we design app features your users will use — and investors will ask about
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Onboarding & account management

Login flows with role logic, password recovery, and identity verification built in.

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Geolocation management

Real-time tracking, local discovery, and location-triggered actions.

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Payments & subscriptions

In-app payments, billing logic, plan upgrades, and wallet integrations.

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In-app messaging & chat

User-to-user or system messaging with optional support and moderation layers.

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Multi-device synchronization

Consistent user data and session continuity across platforms.

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Voice recognition & audio recording

Hands-free input for journaling, commands, or content capture.

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Chatbots & auto-replies

Automated responses and guided flows triggered by user behaviour.

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Scheduling & booking

Built-in calendar views, time slot selection, and confirmations.

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Image recognition & upload

Camera-based capture, document scanning, and visual tagging.

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QR code scanning

Quick access, onboarding, or feature unlock via native scanner.

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Push notifications & alerts

Real-time updates, reminders, and engagement prompts.

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Wearables & smart TV integration

Support for fitness trackers, watches, and large-screen devices.

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IoT device interaction

Sync and control smart sensors or connected hardware.

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Mobile business intelligence

In-app dashboards, usage insights, and goal tracking.

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AI-driven user experience

Adaptive flows, content, and recommendations based on behaviour.

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Gamification & progress tracking

Streaks, milestones, and achievements to drive repeat use.

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Two-factor authentication (2FA)

Extra login security via SMS, email, or authenticator apps.

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Biometric authentication

Face ID, Touch ID, or native fingerprint login for fast, secure access.

Technology stack

Frameworks &
technologies we use
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Swift

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Kotlin

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React Native

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Flutter

INSIDE OUR MOBILE APP DESIGN SERVICES

How our

mobile app design company

moves you from raw idea to dev-ready product
More than a mobile app design and development services provider, we act as your partner, helping you validate, structure, and launch with speed. Every stage of our mobile app design process is built for clarity, usability, and traction.

Stakeholder deep dive

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Defining your goals, users, and technical context

As a client-trusted mobile application design company, we start by understanding your product vision, user types, and business model to design mobile app UI and UX that fits your goals

Key steps

  • Business and product goals
  • Internal team workflows
  • Audience roles and platform needs

Deliverables

Stakeholder brief product context summary

Market & user research

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Grounding design decisions in competitor logic and user behaviour

Our mobile app design services include competitor reviews, audience expectation mapping, and market alignment to uncover what users actually need and what your product must outperform.

Key steps

  • Feature analysis across competitors
  • UX/UI patterns in your category
  • Platform-specific insights (iOS, Android)

Deliverables

Research report UX audit note feature benchmark

Feature prioritization

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Structuring what to build — now vs. next

We help you avoid bloat and dead features. Using business impact and dev feasibility, we define a roadmap-ready feature set for your mobile app MVP or V1 release.

Key steps

  • MVP vs. full-scope breakdown
  • Core flow logic
  • Feature release pipeline

Deliverables

Prioritized feature map product logic overview

UX mapping & wireframes

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Structuring how users move through the app

As a mobile app design company focused on retention, we map user journeys and translate them into wireframes that solve user goals across devices and user types.

Key steps

  • Multi-role user flows
  • Key screen wireframes
  • Navigation structure

Deliverables

UX flows wireframes for core features

Visual direction & moodboarding

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Setting the design tone before committing pixels

Before UI starts, we define a mobile-first visual direction aligned with your brand, product category, and user psychology, making approval cycles faster and output more consistent.

Key steps

  • Style exploration (colour, type, motion)
  • Visual benchmarks by industry
  • Brand-system alignment

Deliverables

Moodboard UI direction preview

UI design & screen delivery

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We design mobile app UI ready for development

We deliver mobile app responsive design that’s easy to build, scale, and hand off. From edge cases to empty states, our mobile app UI/UX design services cover every screen that impacts user flow.

Key steps

  • High-fidelity mockups (iOS, Android, cross-platform)
  • Systemized components and spacing logic
  • Responsive variants for different resolutions

Deliverables

Figma file with design system screen pack specs

Testing & validation

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Making sure the design performs before you build it

We test key flows with real users or stakeholders to validate navigation clarity, interaction behaviour, and overall UX quality before developers touch it.

Key steps

  • Usability feedback loops
  • Clickable prototype testing
  • UX pain point refinement

Deliverables

Feedback summary final UX refinements

Dev handoff & support

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Delivering production-ready assets and staying involved post-handoff

Our mobile app UI/UX design services don’t stop at Figma. We provide your dev team with the tools, logic, and support they need to execute cleanly and launch on time.

Key steps

  • Dev-ready specs and annotations
  • Component naming + asset prep
  • QA support during implementation

Deliverables

Final Figma kit UI library handoff checklist
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See what it’s like to work with us
Your product. Your priorities. One week of focused mobile app design at a reduced rate. Use it to test a screen, a flow, or a critical feature before committing to a full engagement with our mobile application design company.

FEATURED CASES

The results you get when a time-tested strategy meets great mobile app design
See how our

mobile app design and development

agency helped fast-growing startups launch products that convert, engage, and scale.

#Mobile app design

Sway Finance – cash management application
Sway Finance Image - ch-circle-01Switzerland
Results

Faster
 time-to-market

Validated key assumptions

Early
 user feedback

#UX audit #Product redesign #web development

KlickEx – frictionless cross-border payments for the Pacific Island communities
Nomupay Icon - Clip path groupNew Zealand
Tech Stack

Next.js, TypeScript, React Redux

Timeline

6 months

Results

+35% "Add Money" conversion rate

+30% "Money Transfer" completion rate

Raised $1M in additional funding within 6 months

Image - Case preview

Izek Lal

Country manager

We have seen a significant improvement in terms of mobile friendliness and the general flow of the system. I believe this has contributed significantly to the growth of our business. Many thanks, Phenomenon.

#Branding #Website Design

MindTales – mental health app
MindTales Image - round-united-arab-emirates-flag-isolated-on-white-background-round-national-flag-of-uae-vector-removebg-previewUAE
Results

$750K investment secured

Streamlined therapist-patient interaction

Efficient MVP development

What Our Clients Say

5.0 is our average on clutch & designrush
Image - Craig Tortolani

Craig Tortolani

CPO at Dekryption Labs
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Alex Friedman

CEO at Open Path

Not only is the team extremely communicative, their work is exceptional. I have never worked with a team so talented while also being competitively priced and communicative.

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KlickEx Team

Image - George Fry

George Fry

Founder at Neap

The quality of the designs is fantastic. Phenomenon Studio works at speed and is extremely punctual with timelines. They deliver top-notch outcomes with exceptional designs.

Image - Andre Guerra

Andre Guerra

Co-Owner at RADCAT Design
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Kevin Alvarez

Founder & General Partner, Predictive

Phenomenon Studio's ability to translate concepts and rough design mock-ups into high-fidelity assets, designs, and visuals was very impressive. The goal was to maintain simple elegance in the design aesthetic, and they did it very well.

MOBILE APP DESIGN COST

What shapes the price of mobile app design & development at Phenomenon Studio?

Every mobile build is its own ecosystem—whether it’s a three-screen proof of concept, a consumer app with chat and payments, or an enterprise platform streaming real-time analytics.

That range means we can’t price design like an off-the-shelf template. Instead, we size each engagement against your product scope, technical depth, launch timeline, and the capabilities already inside your team.

What affects your mobile app design cost?

01
Scope & screen count

More logic, more states,
more hours

02
App type & tech stack

Native, cross-platform, or hybrid—all impact
delivery speed and complexity

03
Reusable design systems

Investing in scalable UI libraries increases up-front
scope but reduces future cost

04
Validation and testing needs

MVP? Funding round? Enterprise launch? Each
use case changes the design & mobile app

05
Team collaboration

Working with your devs vs delivering turnkey
changes how we scope and staff the team

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Get a custom mobile app design estimate

Our pricing and your product are not prepackaged. Book a free consultation and get a tailored quote for mobile app design, UI/UX, or full mobile app development services.

How to work with us

Move your mobile app design forward — at your pace, with the right level of support
Partner with a full-cycle product design company
We work as your long-term product design and development partner, owning strategy, discovery, design, dev, QA, and scaling iterations. This is not a “project”— it’s your full product team.
Best for
  • Founders who want a senior team thinking beyond sprints
  • Startups scaling beyond MVP and needing deep product ownership
What you get
  • Expert team aligned with your roadmap, KPIs, and business goals
  • Strategic discovery, UX systems
Hire a full-stack dedicated team
We deliver your product from idea to launch—fast and lean. You get execution-ready design and development support with a clear project scope and delivery timeline.
Best for
  • MVPs or feature builds with a defined goal and launch window
  • Pre-seed and seed startups that need to ship without building an in-house team
What you get
  • UI/UX, development, QA, and PM in one dedicated team
  • Clear scope, fixed timeline, efficient delivery
Augment your existing team
We provide developers, designers, and QA engineers to integrate with your team, helping you scale fast while keeping full control over execution.
Best for
  • Startups needing specialized expertise without long-term hiring
  • Seed & Series A+ startups looking to accelerate development
What you get
  • Embedded designers, developers, or product managers to fill skill gaps
  • Faster product delivery without the hiring delays & overhead costs

WHY CHOOSE PHENOMENON STUDIO FOR YOUR MOBILE APP DESIGN

Your success is our priority
Design that’s developer-ready
We design for implementation, not handoff.

Every component is built with devs in mind: design tokens, accessibility, reusability, and real-world constraints. We collaborate with your team, reuse existing elements, and stay involved until everything’s live.

Let’s build something that lasts and grows with your business.
Start now
Embedded, agile collaboration
You work with the doers — not a chain of account managers.

We plug into your tools (Slack, Figma, Jira, Notion), adapt to your sprint cycles, and operate like an extension of your team. Need a full product squad or one embedded designer? We match your workflow.

Let’s build something that lasts and grows with your business.
Start now
Proven track record in tech products
We specialize in SaaS, FinTech, Web3, and AI — where UX and business strategy intersect.

From investor-ready MVPs to enterprise dashboards, we’ve designed products that solve complex problems and scale with confidence. We know what growth-stage startups need to win.

Let’s build something that lasts and grows with your business.
Start now

Among award-winning product design firms

Wins that inspire us forward
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Top product design company 2024

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Top rated plus agency by Upwork

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Professional partner by Webflow

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Nominee 2024
Isora - GRC Platform

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Site of the Day & honorable mentions

Related Services

Services that pair well with your mobile app design
Website design services

Custom website layouts and UX/UI strategies to improve engagement and conversions.

Mobile app development

End-to-end development of mobile applications for iOS and Android.

Branding

Develop a brand that resonates — visually, emotionally, and strategically.

FAQs

Questions already
answered
01
How do you design a mobile app at Phenomenon?

We start with your business goals, product vision, and user behavior. Then we move through user journey mapping, wireframes, visual direction, and full UI delivery. Every step is built for clarity, reuse, and launch-readiness. As a mobile app design company, we deliver dev-ready Figma files, interactive prototypes, and scalable component libraries — tailored to your app type and stack.

02
How to design a mobile phone app?

The best mobile app design process starts with understanding real user problems. We focus on structure, not just visuals — designing mobile app UI that aligns with platform behaviours (iOS, Android, or cross-platform), keeps interfaces familiar, and simplifies user actions. From simple onboarding to complex dashboards, our goal is user clarity and business traction.

03
Do you offer mobile app design and development?

Yes. Phenomenon is your partner for mobile app design, development, and full-stack execution. Our in-house developers and QA engineers work alongside our designers to deliver complete apps across iOS, Android, or hybrid frameworks like Flutter and React Native. You can hire us for delivering mobile app user interface design only, or end-to-end mobile app development services.

04
What affects the cost of mobile app design & development?

The cost of UI UX design for mobile apps depends on feature complexity, app type (native vs cross-platform), number of screens, design system depth, and validation needs. For example, a modern mobile app design with animations, multiple user roles, and custom components will cost more than a simple 5-screen MVP. We break this down transparently in our cost section.

05
Do you design responsive mobile apps?

Yes — mobile app responsive design is a standard part of our process. As part of the best mobile app design practices, we create screen variants for multiple breakpoints, including mobile, tablet, and small desktop, where applicable. Whether it’s mobile-first or adapted from desktop, we deliver mobile app user interface design that performs across devices without breaking layout or logic.

06
What are the current trends in mobile app UI/UX design?

Modern mobile app design is moving toward clarity, motion, and modularity. Users expect microinteractions, gesture-based flows, and a clean mobile app interface design that adapts across devices.

As a mobile app design agency, we also see a shift toward mobile app user interface design systems that are flexible, scalable, and dev-aligned — especially for products planning frequent releases. At Phenomenon, we build UI kits and flows that reflect these great mobile app design trends while staying grounded in your app’s specific goals and audience.

07
What’s included in UI/UX design for mobile apps?

Effective mobile app design projects go beyond screens — they include user flows, wireframes, visual systems, and interaction logic. Whether you’re building a brand-new mobile app design app or reworking an existing product, we design structure-first to support both user behavior and business outcomes.

At Phenomenon, our design mobile app development process includes dev-aligned components, motion design, and assets built to scale, not just look good in a Figma file.

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We’d love to hear more about your project! Feel free to schedule a call using the link provided. This will help us better understand your vision and ensure we’re aligned on all the details.
Have a project to
discuss?
Image - ksenia
Kseniia Shalia
Account Executive
Have a partnership in
mind?
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Polina Chebanova
Co-Founder & CPO