Are you looking for a mobile app developer who can create an app for the next millions of users?

• An individual, big company, or startup looking to build and create an Android or iOS app from scratch?
• Searching for a mobile app developer to integrate new features into your existing Android or iOS app projects?
• Friendly, reasonable, and understanding?
• Someone who invests in the best to get better results?
• Looking for a mobile app development service from design, development to release, and publish on the Play Store and App Store?
• Seeking a mobile app developer who can transform your idea into reality?

If any of these describe you, message me—I am here to help.

I'm Nik, a Mobile App Developer with 8+ years of experience and a Master’s in Computer Science and Engineering.

I have collaborated with big brands, startups, and individuals to create mobile apps tailored to their needs. My work has been featured in market stores, and apps developed by me have garnered 10 million+ downloads, earning permanent spots on users' phones.

Since joining Upwork, I have worked across various industries, including Education, Hospitality, Sales & Marketing, Real Estate, Media & Entertainment, Human Resources, Financial & Banking, E-commerce & Retail, and Transport & Automotive.

Mobile App Development:

• iOS: Swift, SwiftUI, Objective-C, iOS SDK, Xcode
• Android: Kotlin, Java, Android SDK
• Cross-Platform: Flutter, FlutterFlow, Dart, React Native, Ionic

Backend & Cloud:

• Backend: Node.js, Express.js, PHP, Firebase, AWS, Google App Engine
• Databases: MongoDB, MySQL, Firestore
• APIs: RESTful, GraphQL, WebSocket

CI/CD & Tools:

• Git, GitHub, Bitbucket, GitLab, Jira
• CI/CD: Bitrise, CodeMagic
• Design: Sketch, Adobe XD, Figma, InVision

Other Expertise:

• Integration: Social Sign-In (Google, Facebook, Apple), In-App Purchases, Apple Pay, Google Pay, Push Notifications, ARKit, Google APIs (Maps, Places, Translate)
• Testing & Debugging: Firebase Analytics, Crashlytics, Performance Monitoring, CI/CD pipelines
• UX/UI: Material Design, Custom UI Elements, Animation, Lottie, SwiftUI

Here’s a complete selection of mobile apps I’ve developed, categorized by type, along with key features, tools, and languages used:

• Megathy - Sell & Buy Your Grocery Online

  • Category: E-commerce
  • Key Features: Online grocery shopping, multi-language support, real-time inventory management, secure payment gateway integration.
  • Tools & Languages: Swift (iOS), Ionic, Firebase, Stripe API.

• Broadway Bakery

  • Category: Retail
  • Key Features: Online bakery ordering, real-time order tracking, push notifications, user-friendly UI.
  • Tools & Languages: Flutter, Dart, Firebase.

• Flower Shop

  • Category: Retail
  • Key Features: Online flower ordering, custom bouquet creation, real-time delivery tracking.
  • Tools & Languages: Flutter, Dart, Firebase.

• LoanDepot Mobile

  • Category: Finance
  • Key Features: Loan application processing, mortgage calculators, real-time account management, secure document uploads.
  • Tools & Languages: Swift, SwiftUI, Firebase, RESTful API.

• Wa Bank

  • Category: Banking
  • Key Features: Mobile banking, balance checks, fund transfers, transaction history, secure login with biometrics.
  • Tools & Languages: React Native, Firebase, Google APIs.

• Defi Wallet

  • Category: Finance
  • Key Features: Cryptocurrency wallet management, secure transactions, multi-currency support.
  • Tools & Languages: Flutter, Dart, Firebase, RESTful API.

• Multi Wallet

  • Category: Finance
  • Key Features: Multi-currency wallet, secure transactions, cryptocurrency trading.
  • Tools & Languages: Flutter, Dart, Firebase.

• Crowdfire - Manage Social Media

  • Category: Social Media Management
  • Key Features: Social media account management, post scheduling, analytics dashboard, cross-platform support.
  • Tools & Languages: React Native, Node.js, Firebase, RESTful API.

• Nada - Exclusive Dating Network

  • Category: Dating
  • Key Features: Matchmaking algorithms, real-time chat, location-based search, secure user authentication.
  • Tools & Languages: Swift, Firebase, Google Maps API, WebSocket.

• Sense Messaging

  • Category: Communication
  • Key Features: Secure messaging, group chats, media sharing, end-to-end encryption.
  • Tools & Languages: Swift, Firebase, WebSocket.

• Sober Love

  • Category: Wellness & Recovery
  • Key Features: Community support, sobriety tracking, motivational content, event reminders.
  • Tools & Languages: Swift, Firebase, Push Notifications, SQLite.

• Healthy Cart

  • Category: Health & Wellness
  • Key Features: Health tracking, personalized diet plans, integration with wearable devices, secure data storage.
  • Tools & Languages: Flutter, Dart, Firebase, RESTful API.

• Khaliques SA

  • Category: Health & Wellness
  • Key Features: Health services directory, appointment booking, integration with health APIs.
  • Tools & Languages: Swift, Firebase, RESTful API.

• Yap Books - Voice Books

  • Category: Education
  • Key Features: Interactive voice books, personalized reading recommendations, multi-language support.
  • Tools & Languages: Swift, Objective-C, Firebase, Machine Learning Kit.

• Hands on Equations

  • Category: Learning & Education
  • Key Features: Algebra tutorials, step-by-step problem solving, interactive exercises, progress tracking.
  • Tools & Languages: Swift, Core Data, Firebase.

• Dr. Najeeb Lectures

  • Category: Education
  • Key Features: Medical lectures, offline access, interactive quizzes, progress tracking.
  • Tools & Languages: Flutter, Dart, Firebase.

• BookCargo - Transport Goods

  • Category: Transportation
  • Key Features: Goods transport booking, real-time tracking, multi-language support, secure payment gateway.
  • Tools & Languages: Swift, Firebase, Google Maps API, Stripe API.

• Live Porto

  • Category: Travel & Tourism
  • Key Features: Travel guides, location-based recommendations, offline map support, push notifications.
  • Tools & Languages: Swift, Firebase, Google Maps API, Core Data.

• Shaka Guide

  • Category: Travel & Tourism
  • Key Features: Audio tours, offline maps, location-based content, multi-language support.
  • Tools & Languages: Flutter, Dart, Firebase, Google Maps API.

• Delta - Game Emulator

  • Category: Gaming
  • Key Features: Multiple console emulation, save states, customizable controls, multi-player support.
  • Tools & Languages: Swift, Objective-C, Core Data, GameKit.

• Jovial Gaming

  • Category: Gaming
  • Key Features: Real-time multiplayer gaming, leaderboards, in-app purchases, achievements.
  • Tools & Languages: Swift, Firebase, GameKit, In-App Purchases API.

• My Football Career

  • Category: Gaming
  • Key Features: Career management, real-time matches, team building, in-app purchases.
  • Tools & Languages: Flutter, Dart, Firebase.

• Time Clock Wizard

  • Category: Business & Productivity
  • Key Features: Employee time tracking, project management, payroll integration, secure cloud storage.
  • Tools & Languages: Ionic, Firebase, RESTful API, Cloud Firestore.

• Deskera: Business & Accounting

  • Category: Business & Accounting
  • Key Features: Invoicing, inventory management, CRM, financial reports, multi-user support.
  • Tools & Languages: Flutter, Dart, Firebase, RESTful API.

• U by Emaar - Loyalty and Rewards

  • Category: Business & Rewards
  • Key Features: Loyalty programs, reward tracking, personalized offers, secure payment gateway.
  • Tools & Languages: React Native, Firebase, RESTful API.

• River Comics

  • Category: Entertainment
  • Key Features: Digital comics, interactive reading experience, offline access, multi-language support.
  • Tools & Languages: Flutter, Dart, Firebase, RESTful API.

• Eurosport: Live, News & Scores

  • Category: Sports & Entertainment
  • Key Features: Live sports streaming, real-time scores, news updates, personalized notifications.
  • Tools & Languages: Swift, Firebase, RESTful API.

• Next Big Idea Books in 15 Min

  • Category: Media & Learning
  • Key Features: Book summaries, audio content, personalized recommendations, offline access.
  • Tools & Languages: React Native, Firebase, RESTful API.

• Magic Money - Pay and Play

  • Category: Entertainment
  • Key Features: Mobile wallet, secure payments, event tracking, loyalty rewards.
  • Tools & Languages: Flutter, Dart, Firebase, Stripe API.

• Website: nikunjm.com
• Upwork: upwork.com/freelancers/nikunjm22
• LinkedIn: linkedin.com/in/cronativedeveloper
• GitHub: github.com/cronative

Feel free to reach out if you have a project in mind or want to collaborate!

Warmly, Nikunj M