I will develop IOS android mobile app

J
jokeratone
J
jokeratone
John
develop IOS android mobile app
Full Screen
develop IOS android mobile app
Full Screen
develop IOS android mobile appdevelop IOS android mobile app

About this gig

7+ years iOS/Android dev, 20+ apps shipped. Turn designs or existing code into polished, storeready apps.

My advantages:

Fullcycle: UI, logic, API integration, testing, store submission one stop.

Subscription/IAP expert: RevenueCat, StoreKit, Google Play Billing paywalls, entitlements, server validation.

Rescue unfinished apps: audit, debug, and complete buggy or halfbuilt projects fast.

Crossplatform: native Swift/Kotlin or Flutter you choose.

Tech stack: Firebase, REST/GraphQL, WebSocket, push notifications, maps, camera, CoreData, Room, and more.

My process: 1) Review, 2) Sprint with daily updates, 3) Realdevice testing, 4) Deploy to TestFlight/internal track, 5) Source code + docs + video handoff.

Packages:

Basic quick fixes, small features, code audit ($300600, 37d)

**Standard** complete singleplatform app from design to store ($1,2002,500, 1020d) most popular

Premium dualplatform + optional backend + full launch support ($3,0006,000+, 2040d)

All include revisions, testing, and full source code ownership. Message me before ordering to confirm scope. Postlaunch maintenance available. Lets bring your app to life!

  • App type

    • PWA

  • Purpose

    • Chat
    • Dating
    • Streaming
    • Shopping
    • Taxi
    • Booking
    • Medical
    • Maps & navigation
    • IoT
    • Custom

  • Expertise

    • Localization
    • Security
    • Ads & monetization
    • Data storage
    • Firebase
    • Widgets
    • API integration

  • Programming language

    • Dart
    • Kotlin
    • Objective-C
    • Swift

  • Frameworks

    • SwiftUI
    • Flutter
    • Uikit

  • Tools

    • Xcode
    • Flutterflow
    • Firebase

Get to know John

John

MobileFullStackDeveloper

  • FromChina
  • Member sinceAug 2026

  • Languages

    Chinese, English
Mobile Full-Stack Developer | Flutter & iOS Native (Swift/OC) & Backend Expert in cross‑platform Flutter, deep iOS optimization, and backend integration. Stack: Flutter/Dart, Swift/ObjC, Node.js/Python, Firebase, MySQL/MongoDB, MVVM, Clean Arch, CI/CD. Services: End‑to‑end app dev (UI to backend), native iOS bridges/plugins, App Store compliance & rejection fixes, legacy code migration (ObjC/Swift to Flutter). Commitment: clear milestones, regular test builds, clean documented code, full handover.

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