---
title: "Mobile App Development Agency | iOS & Android in 15 Days"
description: "UniqueSide builds iOS and Android apps in 15 days using React Native. Fixed price from $8,000. 40+ products shipped. Singapore-incorporated."
url: "https://www.uniqueside.io/services/mobile-app-development"
canonical: "https://www.uniqueside.io/services/mobile-app-development"
type: "service"
lastmod: "2026-03-18"
---

Mobile app development at UniqueSide ships iOS and Android apps in 15 days starting at $8,000 fixed price, with one React Native codebase deployed to both stores. We have shipped mobile apps for clients across the US, UK, UAE, Singapore, Australia, and New Zealand.

## React Native. One Codebase, Both Stores.

We build mobile apps in React Native. Your app ships to the Apple App Store and Google Play Store from a single codebase. No duplicated effort. No inconsistent experience across platforms.

We handle App Store submission, Play Store submission, push notifications, authentication, and payments. You get the source code on day 15.

## What's Included

- React Native app for iOS and Android
- App Store and Play Store submission
- Push notifications
- User authentication
- Payment integration if required
- Full source code handoff

## Real Apps We've Shipped

Scarlett Panda. AI-powered bedtime story app for kids. Built the full iOS and Android app including AI story generation and audio playback. Live on both stores.

We've shipped mobile apps for founders across the US, UK, Singapore, and India. Fixed price. 15 days. Direct developer access.

## Who This Is For

Founders with a mobile app idea who need to ship fast. Non-technical founders who need a trusted technical partner. Startups who want to validate their app with real users before investing in a full engineering team.

## Start Your App

Tell us what you're building. We respond fast.