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Oonhill Ventures
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Service

Mobile App Development

Native and Cross-Platform Apps Users Love

We build iOS and Android applications that deliver smooth, native-quality experiences — whether as a React Native cross-platform app or fully native Swift/Kotlin build.

What We Offer

Everything You Need to Succeed

01

React Native Apps

Single codebase, native performance on both iOS and Android — faster delivery, lower cost.

02

iOS (Swift) Apps

Fully native iPhone and iPad applications with deep platform integration.

03

Android (Kotlin) Apps

Native Android apps optimised for the full spectrum of Android devices.

04

App UI/UX Design

Platform-specific design following Apple HIG and Material Design guidelines.

05

API & Backend Integration

RESTful and GraphQL API development to power your mobile app.

06

App Store Submission

End-to-end help with App Store and Play Store listing, screenshots, and review process.

Our Process

How We Work With You

01

Discovery & Scoping

Define core user journeys, platform targets, and MVP feature set.

02

UI/UX Design

Platform-native wireframes and high-fidelity designs with interactive prototypes.

03

Agile Development

Two-week sprints with TestFlight/Play Console builds after each sprint.

04

QA & Device Testing

Testing across real devices — multiple OS versions and screen sizes.

05

Store Launch & ASO

Store submission, ASO optimisation, and launch support.

Tech Stack

Technologies We Use

React NativeExpoSwiftKotlinFirebaseNode.jsGraphQLReduxStripeMapbox
Why Choose Us

The Oonhill Advantage

One Codebase, Two Stores

React Native delivers 90%+ code sharing between iOS and Android — saving time and budget.

Offline-First Architecture

Apps that work seamlessly even with poor connectivity.

Push Notifications

Personalised push campaigns to drive re-engagement and retention.

Analytics Built In

Firebase Analytics, Mixpanel, or custom event tracking from day one.

Frequently Asked Questions

Should I build native or React Native?+
For most startups and businesses, React Native delivers 95% of native performance at 60% of the cost. We'll advise based on your specific requirements.
How long does app development take?+
A standard app MVP takes 8–14 weeks. Complex apps with custom backends can take 4–6 months.
Do you handle App Store submission?+
Yes. We manage the full submission process for both Apple App Store and Google Play Store.
Can you rebuild an existing app?+
Absolutely. We regularly rebuild legacy apps with modern architecture and improved UI.

Ready to Get Started?

Let's discuss your project and turn your vision into a high-performance digital product.