Mobile App Development Services for iOS and Android
Mobile app development for iOS and Android with React Native, Expo, Flutter or native Swift and Kotlin. UX research and UI design done up front, AI-accelerated engineering with senior review, and App Store and Google Play launches handled end to end.
What We Serve
Mobile Apps Designed for Real Users and Built to Ship
A mobile app is judged in the first session, and rated in public. Our mobile app development services start where the old pages of this site always did: with research and design, so the app solves a real job before anyone writes code. Then senior engineers build it in React Native with Expo, Flutter, or native Swift and Kotlin, depending on your team and your roadmap, with a backend to match. AI tools scaffold screens, generate tests and speed up the repetitive work; people design the architecture, review every pull request and handle the store submissions. You get an app that feels native, launches on time and can be maintained by your own developers.
Our Approach
Research, Design, Build, Launch, Learn
We begin with the users and the platforms: who they are, what they need to do on a phone, and whether iOS, Android or both come first. Flows and screens are designed to platform guidelines and tested as prototypes before engineering. The build runs in short cycles with TestFlight and Play Console builds you can try every week, automated tests on each pull request and a senior engineer reviewing every change. We handle store listings, review guidelines, privacy declarations and the launch, then measure retention and crashes to decide what ships next.
What Is Mobile App Development?
Mobile app development is designing, building, testing and launching applications for iOS and Android, either natively in Swift and Kotlin or cross-platform with React Native or Flutter, together with the backend services, analytics and store presence that make the app work and grow.
Cross-platform or native
React Native, Expo and Flutter for one codebase; Swift and Kotlin when the platform demands it.
Design to guidelines
iOS Human Interface and Material Design, gestures and states done right.
Backend and integrations
APIs, auth, push notifications, payments and offline sync.
Store launch
App Store and Google Play submissions, reviews and updates handled.
At Devoq Design, mobile app development means apps people keep, delivered about 5x faster with AI-accelerated engineering and senior review.
Why Professional Mobile App Development Matters
Mobile users are unforgiving: a slow screen, a confusing flow or a crash earns a one-star review. Getting research, design and engineering right is how apps earn retention.
Retention
Apps designed around real jobs keep users coming back.
Store Ratings
Stability and polish earn reviews that drive installs.
One Codebase, Two Platforms
React Native or Flutter ship iOS and Android together.
Faster Releases
CI builds, automated tests and over-the-air updates where allowed.
Lower Support Load
Good states, errors and offline handling answer questions before support does.
Measurable Growth
Analytics and crash reporting from launch to guide the roadmap.
Our Mobile App Development Expertise
React Native and Expo
Cross-platform apps with native modules where they matter.
Flutter
High-performance UI across iOS, Android and web from one codebase.
Native iOS and Android
Swift, SwiftUI and Kotlin when the platform experience demands it.
Mobile UX and UI Design
Research-led flows and screens designed to platform guidelines.
Mobile App Development Services We Offer
Every app has a different starting point. Our mobile app development services cover new apps, redesigns, companion apps and rescues.
iOS App Development
Native Swift and SwiftUI apps built to Apple guidelines.
Android App Development
Kotlin and Jetpack Compose apps built to Material Design.
React Native App Development
One codebase for iOS and Android with Expo tooling.
Flutter App Development
Fast, consistent UI across platforms from one Dart codebase.
Mobile App UI/UX Design
Research, flows, prototypes and design systems for mobile.
App Modernization
Rebuild or refactor an existing app with tests and a sane architecture.
From a first MVP to a redesigned app with millions of sessions, our mobile app development services ship apps users keep. See also: UI/UX design, backend and API development, MVP development and hire a React Native developer.
Why Choose Us?
Design and Engineering Together
Mobile designers and engineers in one studio, one design system.
Research Before Code
Flows validated with users before a sprint is spent building them.
AI-Accelerated, Human-Reviewed
Agents scaffold screens and tests; senior engineers review every change.
Launch Handled
Store listings, review guidelines and privacy declarations done for you.
Proven on Real Apps
Fintech, SaaS and consumer apps on our case studies and portfolio pages.
Flexible Engagement
Fixed-scope build, monthly retainer or a dedicated mobile pod.
Common Mobile App Problems We Fix
Teams usually look for a mobile app development company when the app is losing users or the roadmap has stalled. These are the problems we fix most.
Low Retention After Install
Users open the app once, get lost and never return.
Crashes and One-Star Reviews
Untested releases that damage the store rating.
Two Codebases, Double the Cost
Separate iOS and Android teams shipping different features.
Design That Ignores the Platform
Web layouts forced onto phones, gestures and states missing.
Slow Release Cycle
Manual builds and store submissions that take weeks.
Legacy App Nobody Can Change
Old frameworks and no tests, so every update is a risk.
Contact Us
Ready to build an app your users keep?
Technology we build mobile apps with
React Native with Expo, Flutter, Swift and Kotlin for the apps; Node.js, Supabase and Firebase for the backend; Figma for design; and AI tools inside your repository. Everything lives under your own accounts.
React Native
Expo
Flutter
Swift and SwiftUI
Kotlin
Firebase
Figma
Figma variables and tokens
FigJam
Framer
Sketch
Adobe XD
Protopie
Zeplin
Miro
Maze
Node.js
NestJS
Express
Bun
Python and FastAPI
PostgreSQL
Supabase
MongoDB
Redis
GraphQL
REST APIs
Prisma and Drizzle
Playwright
Vitest and Jest
AI-assisted code review
Lighthouse and Core Web Vitals
WCAG 2.2 accessibility
Git and GitHub Actions
Claude
Claude Code
Cursor
OpenAI Codex
ChatGPT
Gemini
GitHub Copilot
v0
Figma AI
Midjourney
What You’ll Receive
Every mobile app engagement ends with a defined handover. Everything below transfers to you, so your team can maintain and grow the app.
User Research and Flow Maps
Mobile UI Design and Design System
Interactive Prototypes
iOS and Android Source Code
Backend and API Integration
Automated Test Suite
CI Builds for TestFlight and Play Console
Store Listings and Launch Assets
Analytics and Crash Reporting Setup
Recorded Handover Walkthrough
Every deliverable is shaped by your users, your platforms and your team, and you own all of it.
Our Passion: Your Growth, Our Recognition
At Devoq Design, client success is paramount. We measure our worth by the heights our clients reach. Awards are a delightful affirmation, but seeing your business flourish that’s the true reward.
26 Reviews on Clutch
5.0
Design Company by Clutch
Champion Company by Clutch
Global Company by Clutch
Top Rated
on Upwork
Best Company by Goodfirms
Top Company in Dribbble
Best Company by Webflow
Top Company in Behance
Top Companies Clutch Global
User Research Company by Clutch
Digital Design Company by Clutch
Discover Our Case Studies
Explore Compelling Case Studies: Real Solutions, Real Success Stories
Web Design
We crafted a sleek and intuitive website for Firewire, a digital marketing company specializing in SEO and Google Ads, to showcase their expertise and results. Our design highlights their data-driven approach to connecting businesses with their audience.
Increase Customer interaction
87
%
New Customer Acquisition
30
%
Marketing
SaaS Product Design
We created a clean and scalable SaaS experience for Buzops, helping businesses manage operations, automate workflows, and improve customer engagement through a unified platform.
Demo Request Increase
37
%
Platform Interaction Growth
68
%
Customer Acquisition Boost
25
%
SaaS
Web Design
We designed and developed a user-friendly website for Cadre Crew, a company that helps growing businesses scale operations with virtual assistant and project management services. Our goal was to create an intuitive and efficient experience for their users.
Increase Customer Value
25
%
Boost Traffic
20
%
Higher Conversion Rate
15
%
Professional Services
Web Design
We built a modern online platform for Wealth Bridge, a mortgage and loan comparison service. The goal was a credible, easy-to-use experience that makes complex loan information simple. With a focus on clarity, performance and smooth interaction, the site helps borrowers compare home-loan products and choose the right one with confidence.
Higher Lead Generation
50
%
Growth in Page Interaction
78
%
More Returning Visitors
40
%
Web Design
We created a compassionate and accessible digital experience for AngelCare, simplifying care discovery, improving NDIS understanding, and empowering users to access personalized support services with ease.
Care Program Adoption
22
%
Client Interaction Increase
48
%
Satisfaction Score
93
%
While growth of our clients is what matters most, it`s nice to get awards
We unite Business-Driven + User-Centered UX process while creating the product design tocover business goals and user`s needs.
Michael Cosgrove
Oct 3, 2023
Emin Salmanov
Mar 10, 2024
Johan Timmer
Mar 1, 2024
Erin Gouse
May 14, 2019
Anika Schleifer
Mar 21, 2024
Tom Peeters
Mar 12, 2024
Frequently Asked Questions
Should we build a native app or use React Native or Flutter?
React Native with Expo or Flutter is right for most products: one codebase, two platforms, faster releases. Native Swift and Kotlin are right when you need deep platform features, the highest performance or heavy hardware integration. We recommend one after understanding your users and roadmap.
How much does mobile app development cost?
It depends on the number of screens and features, whether you need iOS, Android or both, backend complexity, integrations such as payments or push, and whether design exists. We scope a fixed price for a defined build or a monthly retainer for ongoing work after a short call.
How long does it take to build a mobile app?
With research done up front and AI-accelerated engineering, a focused first version reaches TestFlight and the Play Console in weeks rather than months. The full timeline depends on scope and review speed; we give you a dated plan after discovery.
Do you handle App Store and Google Play submission?
Yes. Store listings, screenshots, privacy declarations, review guidelines and the submission itself are part of the launch, along with the updates that follow.
Can you take over an existing mobile app?
Yes. We audit the codebase, tests, crash reports and store reviews, agree a plan with your team, and ship improvements in reviewed pull requests, including a modernization path if the framework is out of date.
How is this about 5x faster than a traditional agency?
Four things add up: several AI-drafted options at once instead of one at a time, generated boilerplate and tests instead of hand-written setup, reusable component libraries instead of page-by-page builds, and automated checks on every change instead of a manual pass at the end. Review time stays the same; waiting time disappears.
Is AI-assisted work good enough, and is it safe?
AI never ships anything on its own. A senior lead reviews every design and every code change, automated tests and accessibility checks run on each one, and the code is plain TypeScript in your own repository. We do not send your customer data to AI tools without a written agreement.
Who owns the code, the design files and the accounts?
You do, from the first week. Figma, GitHub, CMS and hosting accounts are created under your company, and the contract assigns the IP to you. There is nothing to hand back at the end because it was always yours.
How do you charge: fixed price, monthly retainer or dedicated team?
All three, depending on the shape of the work. A fixed price when the scope is clear, a monthly retainer when the work keeps evolving, and a dedicated designer or engineer pair when you want capacity inside your own team. We recommend one after a short discovery call.
Do you work with companies in the US, UK, Canada or Australia?
Yes, most of our clients are there. Devoq Design has teams in India, Canada and the US, so every project has overlapping hours for reviews and stand-ups. Everything else runs async with recorded walkthroughs, decision logs and written updates in your Slack or Teams.
How do we get started?
Book a 30-minute call or send a short brief. We come back within a few working days with a scope, a plan and a price. Work starts after an NDA and IP assignment are signed and your accounts are set up.
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We’re Here!
US
2108 N ST STE N SACRAMENTO, CA 95816
Canada
23 Mullen Drive Ajax, L1T2A9 Ontario, Canada
India
111, Platinum Plaza Opp. I.O.C. petrol pump, Bodakdev, Ahmedabad - 380054
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