Mobile App Development

Your iOS or Android app, built to perform on both stores.

Native mobile apps for iOS and Android — built for the performance, usability, and store guidelines that get your app approved, rated well, and kept on people's phones.

Mobile App Development
BEST FIT FOR

Who This Service Is For

Mobile app development for businesses launching a consumer app or an internal tool their team uses in the field.

Businesses Launching a Customer-Facing App

Your service or product needs a mobile presence your customers use daily
You need iOS and Android — native performance, not a cross-platform wrapper
App Store approval and store listing optimisation matter for your launch
Post-launch updates, user retention, and ratings are part of the long-term plan

Companies Building an Internal Mobile Tool

Your team uses a mobile app on the job — field workers, delivery drivers, sales reps
Offline capability and device integration (camera, GPS) are requirements, not nice-to-haves
The app needs to integrate with your existing backend or third-party systems
Security and access control are essential for internal company data
PROBLEMS WE SOLVE

Problems We Solve

The most common issues that bring mobile app projects to Vantagon.

App Rejected by the App Store

Builds that don't meet App Store or Play Store guidelines, get rejected on submission, and require costly rework before they can resubmit.

Crashes and Performance Issues Post-Launch

Apps that work in testing but crash under real usage across different device models, OS versions, or network conditions.

Poor User Retention

Users download the app but don't return after the first session because the experience isn't fast, intuitive, or reliable enough to compete.

Offline Functionality Missing

Users losing access to critical features when connectivity drops — a serious failure for field-based or mobile-first use cases.

App That Doesn't Match the Designs

A delivered app with inconsistent spacing, missing states, and broken animations that doesn't accurately reflect the approved designs.

Expensive Rebuilds After Launch

A poorly architected first version that can't be extended without a near-complete rewrite when new features are needed six months later.

DELIVERABLES

What You Get

Every mobile app engagement delivers these three groups of outputs.

Design & Architecture

  • User flows, wireframes & UI design
  • Native architecture for iOS & Android
  • App Store & Play Store asset preparation

Development & Integration

  • Native iOS & Android development
  • Backend & API integration
  • Push notifications & device feature integration

Testing, Launch & Support

  • Real-device testing across OS versions
  • App Store submission & review management
  • Post-launch monitoring & updates
OUR APPROACH

How Your App Gets Built

Five phases from design to live on both stores — structured to avoid the rework that derails mobile projects.

Step01

Strategy & Design

User flows, wireframes, and screen designs finalised before a line of code is written. App Store requirements factored in from the start — not discovered during submission.

Step02

Development

Development in structured sprints with builds shared for review throughout. No waiting until the final week to see what you're getting.

Step03

Testing & QA

Testing on real iOS and Android devices across multiple OS versions and screen sizes. Edge cases, permissions, and network conditions all covered.

Step04

Store Submission

Store listings prepared, screenshots created, and submissions managed through the review process. Rejections handled and resubmissions managed without delay.

Step05

Launch & Iteration

Post-launch crash reporting, performance monitoring, and iterative improvements based on real user data and App Store reviews.

How Your App Gets Built

TECH STACK

Technologies We Use

Native frameworks for both platforms — so your app performs like a native app because it is one.

S
Swift
S
SwiftUI
U
UIKit
K
Kotlin
J
Jetpack Compose
F
Flutter
D
Dart
TypeScriptTypeScript
F
Firebase
S
Sentry
X
Xcode
A
Android Studio
F
Fastlane
T
TestFlight
AWSAWS
M
Mixpanel

Related Case Studies

See how we've delivered results

FinTech Platform Development
300%

TechBank

FinTech Platform Development

Build a modern digital banking platform

300% user growth in 6 months

Healthcare Mobile Application
50%

MediCare

Healthcare Mobile Application

Create a patient management system

50% improvement in patient engagement

E-commerce Platform Redesign
200%

RetailPro

E-commerce Platform Redesign

Migrate legacy system to modern architecture

200% increase in transaction speed

FAQs

Frequently Asked Questions

Find answers to common questions about our services, process, and how we can help your business.

Native (Swift/Kotlin) for the best performance, device integration, and App Store compliance. Flutter for cross-platform where budget is constrained and performance requirements are moderate. We'll recommend the right approach based on your specific use case.

You’ve Seen What We Build. Now Let’s Build Yours.

Describe the project — what it needs to do, what your business needs from it. You get a clear scope, a fixed price, and a delivery date before you commit to anything.

+1 (555) 123-4567hello@vantagon.io