iOS · Android · Flutter · React Native
End-to-end mobile app development from idea to App Store. Native iOS in Swift, native Android in Kotlin, cross-platform Flutter and React Native - 180+ apps shipped, 15+ years experience, biweekly device builds.
Mobile App Development Services
Native iOS, Android, Flutter, and React Native - plus backend APIs, UI/UX design, ASO, and ongoing maintenance.
iOS App Development
Native iPhone and iPad apps in Swift and SwiftUI - ARKit, Core ML, HealthKit, StoreKit 2, Apple Pay, and full App Store submission. Follows Apple Human Interface Guidelines for polished, review-compliant experiences.
Android App Development
Native Android apps in Kotlin and Jetpack Compose - Material Design 3, adaptive layouts for phones, tablets, and foldables, Google Play billing, Firebase integration, and full Play Store submission.
Flutter App Development
A single Flutter/Dart codebase that compiles to native ARM code on iOS and Android. Pixel-perfect custom UI, platform channel integrations, and 30–40% faster time-to-market vs. building two native apps.
React Native Development
JavaScript/TypeScript React Native apps sharing up to 90% of code between iOS and Android. Expo-managed or bare workflow, OTA updates via EAS, and native module bridges for platform-specific features.
Mobile UI/UX Design
Figma-based mobile UI/UX design: user research, information architecture, wireframes, high-fidelity screens, interaction design, and a reusable design system - all before a single line of code is written.
App Backend & API Development
Scalable backends for mobile apps - REST or GraphQL APIs, push notifications (FCM, APNs), real-time features (WebSockets, Socket.io), auth (JWT, OAuth, Sign in with Apple), and cloud hosting on AWS, GCP, or Firebase.
Tools & Frameworks We Use
Native platforms, cross-platform frameworks, backend services, CI/CD pipelines, and testing tools - all production-proven.
How We Work Together
Three flexible models - choose the one that fits your stage, budget, and how much control you want.
Dedicated App Team
A dedicated mobile squad embedded in your team.
A full-time offshore mobile team - iOS/Android/Flutter developer(s), UI/UX designer, QA engineer, and project manager - working as a seamless extension of your team at a fraction of US/UK/AU in-house cost. Two-week sprints with daily standups and biweekly device builds. 100% source code and IP ownership from day one.
- Full-featured app with ongoing feature roadmap
- Long-term mobile product with monthly releases
- Replacing or augmenting in-house mobile capacity
- Simultaneous iOS + Android launch
Ongoing - scale up or down each quarter
Fixed Price
Predictable cost and timeline for scoped apps.
Agreed scope, fixed price, and guaranteed delivery date - ideal for MVPs, v1 product launches, and clearly scoped apps. We handle discovery, design, development, QA, and App Store / Play Store submission. Payment in milestones tied to deliverables.
- MVP or v1 launch with a defined feature set
- Startup with investor deadline
- Internal enterprise tool with clear requirements
- App redesign or feature addition
12–28 weeks depending on complexity
Time & Materials
Maximum flexibility - pay only for hours worked.
Hourly billing with full transparency - daily time logs, weekly summaries, and the ability to pivot scope at any sprint. Best for research-driven products where the roadmap evolves with user feedback, or for adding specific mobile engineers to your existing team.
- Iterative product discovery with rapid pivots
- Staff augmentation - specific mobile skill needed
- Long-running project with evolving requirements
- Prototype to validate before full build
Ongoing - start and pause anytime
From Idea to App Store in 6 Phases
A proven delivery process - transparent, sprint-based, and always shipping working builds to real devices.
Discovery & Scoping
We map user journeys, define the feature set, agree on the technology stack, and produce a detailed project plan with sprint breakdown and delivery milestones. NDA signed before we begin.
UI/UX Design
Figma wireframes → high-fidelity screens → interactive prototype → design system. We follow Apple HIG and Material Design 3 guidelines so every screen is platform-native and review-ready.
Sprint Development
Two-week sprints with working builds on TestFlight and Firebase App Distribution throughout. You test on real iPhones and Android devices every sprint - no surprises at launch.
QA & Device Testing
Functional, regression, performance, and accessibility testing across 30+ real devices. We run automated tests (XCTest, Espresso, Detox) and manual exploratory testing on every sprint build.
App Store & Play Store Submission
We handle metadata, screenshots, preview video, privacy labels, App Review responses, and Play Store listing - plus ASO keyword strategy to maximise organic discovery from day one.
Post-Launch Support
Crash monitoring via Crashlytics, performance analytics, OS update maintenance (new iOS/Android releases each September/October), and a prioritised feature backlog for the next version.
What Our Clients Say
"1Solutions built our Flutter app for iOS and Android simultaneously. The code quality is exceptional - Riverpod architecture, full test coverage, and beautiful animations. Launched on time, within budget, and 4.8 stars on the App Store from week one."
"Our enterprise Android app handles field inspections for 800+ technicians. 1Solutions delivered offline-first architecture with SQLite sync, barcode scanning, and MDM deployment via Jamf. Rock-solid."
"We replaced a slow React Native v0.63 app with a native Swift rewrite. 1Solutions phased the migration over 12 weeks with zero downtime to the existing user base. Launch time dropped from 4.2s to 0.9s."
Why Clients Choose Us
We have been building mobile apps since the App Store launched in 2008. Here is what makes the difference.
180+ Apps Shipped
Consumer, enterprise, and e-commerce apps across iOS, Android, Flutter, and React Native - with an average App Store rating of 4.8.
All Four Platforms
Native Swift, native Kotlin, Flutter, and React Native - in-house experts for each. We recommend the right stack for your app, not the one we prefer.
15+ Years Experience
Founded in 2008, we have built mobile products through every major platform shift: iOS 2 → 18, Android 1.5 → 15, hybrid → cross-platform.
Biweekly Device Builds
You test on real iPhones and Android devices every two weeks. No 3-month blackbox - you see working screens throughout the entire build.
100% IP Ownership
Full source code delivered via GitHub or GitLab from sprint one. NDA before discovery. All IP assigned to you contractually - no ongoing dependency on us.
Western Market Expertise
US, UK, AU, and CA market expectations built-in: App Review compliance, GDPR/CCPA privacy manifests, accessibility (WCAG 2.2), and localisation.
Transparent Communication
Daily standups, a shared project board (Jira/Linear), and a dedicated Slack channel. You always know what was shipped, what is in progress, and what is next.
Post-Launch Partnership
We handle OS updates, Crashlytics monitoring, App Store rating responses, and feature roadmap planning - not just the initial build.
Tell Us About Your App
Share your idea - platform, core features, target users - and we will send you a free technical estimate and recommended tech stack within 24 hours.
Free technical estimate - no obligation
NDA signed before discovery call
Platform recommendation included
Response within 24 hours, Monday–Friday
15+ years building apps for US, UK, AU & CA markets
Get Your Free App Estimate
Frequently Asked Questions
Everything you need to know about our mobile app development service.