# Mobile and Application Development

> Native iOS, native Android, Flutter and progressive web apps, built by a team with an Apple developer account active since 2012.

Source: https://lastdoorsolutions.com/services/mobile-apps

## Proven in Production

One of our earliest iOS apps, Battigayo, reached an estimated 100,000+ users and became one of Nepal's first viral consumer apps (2012 to 2018). Since then, we have shipped:

- Medibook, a medical directory app for Kathmandu (2013, retired)
- Two news apps still live on the App Store: The Rising Nepal and Gorkhapatra
- A Chrome extension for team timesheets

That track record matters because mobile is unforgiving. App Store review rejects apps that crash or mislead, and users uninstall apps that feel slow. Performance, reliability and polish are the cost of staying installed.

## Native when it matters. Cross-platform when it makes sense.

We build native iOS and native Android when the product demands it. Platform-specific behavior, deep OS integration, hardware access, performance-critical interfaces.

We build with Flutter when the product is better served by a shared codebase. One Flutter codebase ships to iOS and Android at once, with a consistent UI across platforms. For most B2B tools, internal apps and early-stage consumer products we recommend Flutter: faster iteration and lower maintenance cost.

We also build Progressive Web Apps for teams that need mobile-grade experiences without App Store distribution. PWAs run in the browser, install on the home screen, and work offline.

## What We Do Not Do

We do not take on mobile projects we cannot own. If your app requires hardware integrations, AR, or complex payment systems, we scope those precisely before we start. If the right answer is a PWA instead of a native app, we will tell you that, even if native is the larger engagement. The goal is a product that works.

## What's Included

- **Native iOS development:** Swift, SwiftUI, UIKit, App Store submission and review management
- **Native Android development:** Kotlin, Jetpack Compose, Google Play submission and management
- **Flutter cross-platform:** Single codebase for iOS and Android, native performance, platform-appropriate UI
- **Progressive Web Apps:** Offline support, home screen installation, push notifications, no App Store required
- **Chrome extensions:** Browser-based tooling, workflow automation, team productivity
- **App Store presence:** Active Apple App Store developer account since 2012
- **API and backend integration:** REST, GraphQL, real-time data, authentication, push notification services
- **App architecture:** State management, offline-first design, performance profiling
- **Post-launch support:** OS updates, App Store compliance, bug fixes, feature iterations

## Tech Stack

- **Swift / SwiftUI / UIKit:** Native iOS
- **Kotlin / Jetpack Compose:** Native Android
- **Flutter / Dart:** Cross-platform iOS and Android
- **React / TypeScript:** Progressive Web Apps
- **Chrome Extension APIs:** Browser extensions
- **Firebase:** Push notifications, real-time data, authentication
- **REST / GraphQL:** Backend integration
- **Fastlane:** Automated App Store and Play Store deployment

## Who This Is For

- **Startups** that need a mobile product shipped and kept running.
- **B2B product companies** that need a mobile companion or internal tool without standing up a dedicated mobile team. Flutter lets us ship and iterate without a separate iOS and Android team.
- **Enterprise teams** that need a Chrome extension, internal app, or PWA built to complement an existing web platform.

## Proof

- Battigayo, a consumer iOS app published in 2012 that reached an estimated 100,000+ users. One of Nepal's first viral apps.
- iOS medical directory app published on the Apple App Store.
- Chrome extension for team timesheet management shipped and used in production.
- Active Apple App Store developer account since 2012. [See our App Store developer page](https://apps.apple.com/in/developer/lastdoor-solutions/id522681681)