How much does it cost to develop a mobile app?

Mobile app development costs vary significantly by scope and complexity. A focused MVP (core feature set, one platform) typically costs $15,000–$30,000. A professional app for both iOS and Android with custom backend, push notifications, and analytics runs $30,000–$75,000. Enterprise-grade apps with complex integrations, offline sync, or real-time features start at $75,000+. We provide detailed fixed-price quotes after a discovery call — no billing surprises.

How long does mobile app development take?

An MVP with a focused feature set typically takes 2–3 months from kick-off to App Store submission. A full-featured professional app for both platforms takes 4–6 months. Complex enterprise apps with extensive backend work, third-party integrations, and multi-platform support can take 6–12 months. We publish a milestone-based schedule in our project proposal so you always know what's next.

Should I build a native or cross-platform app?

It depends on your priorities. Native apps (Swift for iOS, Kotlin for Android) offer the best performance, deepest platform integration, and access to the latest OS features — ideal for apps that push hardware limits (AR, camera-heavy, games). Cross-platform frameworks like React Native and Flutter let you share up to 80–90% of code between iOS and Android, reducing cost and time-to-market significantly. For most business apps, React Native or Flutter is the smart choice. We advise you honestly based on your use case.

What is React Native?

React Native is an open-source framework created by Meta that lets developers build native iOS and Android apps using JavaScript and React. Instead of running in a web view, React Native renders actual native UI components — giving apps a genuinely native look and feel. It's ideal for teams who already know JavaScript/React, for apps that need fast iteration, and for businesses that want to share a codebase across both platforms without sacrificing native performance.

Flutter is Google's open-source UI framework for building cross-platform apps from a single Dart codebase. It uses its own rendering engine (Skia / Impeller) to draw every pixel, which means pixel-perfect consistent UI across iOS, Android, web, and desktop. Flutter is ideal when you need highly custom, visually rich UI, when pixel-perfect consistency across platforms is critical, or when you're targeting more than two platforms (iOS + Android + web + desktop) from one codebase.

Do you publish apps to the App Store and Google Play?

Yes — app store submission is included in every project. We handle Apple App Store and Google Play Store submissions, including writing the app description and keyword metadata for ASO, creating compliant screenshots and preview videos, setting up age ratings and privacy labels, responding to any review team queries, and setting up TestFlight (iOS) and internal testing tracks (Android) for your team.

Can you build a backend for my mobile app?

Yes. We build full-stack mobile products. Our backend services include REST and GraphQL APIs, user authentication (JWT, OAuth, Apple Sign-In, Google Sign-In), database design (PostgreSQL, MongoDB, Firebase, Supabase), push notification infrastructure, file storage (AWS S3, Cloudinary), and payment integration (Stripe, RevenueCat for in-app purchases). You get a single team responsible for the entire product.

Do you offer app maintenance after launch?

Yes. Apps require ongoing maintenance: iOS and Android release new OS versions annually that can break existing functionality. We offer post-launch support plans that cover OS compatibility updates, dependency upgrades, bug fixes, performance monitoring, analytics review, and feature releases. Plans are available as a monthly retainer or on a time-and-materials basis.

Available for New Projects

Build a Mobile App Your Users Will Love

Expert mobile app development for iOS, Android, and cross-platform. From MVP to enterprise — React Native, Flutter, Swift, and Kotlin. Fixed-price projects for startups and businesses in the US, UK, Canada & Australia.

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50+ Apps ShippediOS · Android · React NativeApp Store Publishing IncludedFree Trial Sprint

50+

Apps Shipped

10+ yrs

Experience

4.9/5

Rating

iOS+Android

Both Platforms

8 wks

MVP Timeline

US/UK/AU

Clients

Definition

What is Mobile App Development?

Mobile app development is the process of designing, building, and deploying software applications that run on smartphones and tablets. There are three main approaches: native development (Swift/SwiftUI for iOS, Kotlin for Android) delivers the best performance and deepest platform integration; cross-platform frameworks like React Native and Flutter share a single codebase across iOS and Android to reduce cost and time-to-market; and Progressive Web Apps (PWA) are web experiences that behave like apps without requiring an app store install.

The right approach depends on your audience, budget, performance requirements, and how quickly you need to validate. At Klyvexia, we give you an honest recommendation — and the expertise to execute whichever path you choose.

Our mobile app development covers:

iOS (iPhone & iPad) app development

Android app development

Cross-platform with React Native or Flutter

UI/UX design included in every project

Backend API & database development

Push notifications & in-app analytics

App Store & Google Play submission

Post-launch maintenance & support

Technology Stack

Technologies We Use to Build Your App

Native and cross-platform expertise across the full mobile stack.

Cross-Platform

React NativeFlutterExpoTypeScriptReduxZustand

iOS Native

SwiftSwiftUIUIKitXcodeTestFlightApp Store Connect

Android Native

KotlinJetpack ComposeAndroid StudioPlay ConsoleGradle

Backend & APIs

Node.jsFirebaseSupabaseGraphQLRESTWebSockets

Cloud & Storage

AWS AmplifyGoogle CloudS3Push NotificationsCDN

Testing & QA

JestDetoxAppiumMaestroCrashlyticsTestFlight

What We Build

Mobile App Development Services

From a focused MVP to a full-featured consumer app — we scope the work to your goals and budget.

iOS App Development

Native iPhone and iPad apps built with Swift and SwiftUI. Smooth animations, Apple Human Interface Guidelines, and App Store ready.

Android App Development

Native Android apps in Kotlin with Jetpack Compose. Material Design 3, Play Store optimised, and tested across device sizes.

Cross-Platform (React Native / Flutter)

One codebase for iOS and Android. React Native for JavaScript teams, Flutter for pixel-perfect UI — we advise the right fit.

App UI/UX Design

End-to-end mobile UI/UX design: user flows, wireframes, high-fidelity Figma prototypes, and design systems — included in every project.

MVP App Development

Lean, testable MVPs shipped in 8–12 weeks. Focus on the core user journey — validate before you invest in the full product.

App Store Publishing & ASO

We handle App Store and Google Play submission, screenshots, metadata, keyword research, and App Store Optimisation.

Push Notifications & Analytics

Crashlytics crash reporting, Mixpanel or Amplitude analytics, and push notification infrastructure — set up from day one.

App Maintenance & Updates

Ongoing support, OS compatibility updates, bug fixes, feature releases, and performance monitoring after launch.

How We Work

From Idea to App Store in 4 Steps

A clear, repeatable process built for fast delivery and zero surprises.

Strategy & Research

We define your target users, core features, platform choice, and technical architecture in a structured kick-off workshop.

UI/UX Design

User flows, wireframes, and high-fidelity Figma prototypes. You approve every screen before development begins.

Development & QA

Two-week agile sprints with TestFlight / internal track builds. Manual and automated QA throughout, not just at the end.

Launch & ASO

App Store and Google Play submission, ASO copywriting, screenshots, and post-launch monitoring and analytics setup.

Why Klyvexia

Why Businesses Choose Us as Their Mobile App Development Partner

We've shipped 50+ apps for startups and businesses worldwide. Here's what makes us different.

📱

Native Performance

We don't sacrifice performance for code sharing. The right approach for the right platform.

🎨

Design Included

Every project includes UI/UX design — no separate design agency needed.

🚀

App Store Publishing

We handle App Store and Google Play submission, screenshots, metadata, and ASO.

🔄

Agile Sprints

Two-week sprints, demo at end of every cycle. You stay in control throughout.

📊

Analytics Built In

Crashlytics, Mixpanel, or custom — you know how users behave from day one.

🌍

Time-Zone Friendly

US / UK / AU overlap hours and async Slack updates.

FAQ

Mobile App Development FAQs

Common questions about mobile app development, costs, timelines, and our process.

Ready to Build Your Mobile App?

Tell us your idea. We'll advise on platform choice, scope the MVP, and give you a fixed-price quote — usually within 48 hours.

Start Your App Project Back to Home

No commitment required · Fixed-price projects · App Store publishing included