Freelance Mobile App Development
Build Fast, Scalable & User-Friendly Mobile Applications for Your Business
Turn your mobile app vision into an intuitive, high-performance product. I engineer custom Android & iOS mobile apps using Flutter and React Native, powered by secure cloud APIs. From concept wireframes to Google Play Store and Apple App Store launch, enjoy direct senior developer collaboration, fluid 60fps animations, and zero agency markup.
Transforming Commercial Ideas Into High-Impact Mobile Apps
With over 12 years of software engineering experience, I help companies, funded startups, and entrepreneurs build fluid mobile apps that customers love using. From initial UI/UX architecture to backend cloud synchronization and app store publishing, I deliver end-to-end mobile excellence.
Custom Mobile App Development
Bespoke apps engineered specifically around your commercial objectives, avoiding unmaintainable cookie-cutter app makers.
Android & iOS Applications
Full deployment for both major operating systems with platform-specific design patterns, gestures, and native performance.
Cross-Platform Development
Save 50% on cost and time with Flutter and React Native. A single maintainable codebase compiling to true native mobile binaries.
Business & Startup Apps
Rapid MVP delivery to validate customer demand quickly, equipped with monetization channels, analytics, and instant push updates.
Mobile Apps Delivered
Years Senior Experience
Satisfied Global Clients
Mobile & Cloud Stacks
Mobile App Development Services
Comprehensive mobile development services tailored to help businesses build, test, launch, and monetize top-tier mobile products.
Android App Development
Custom Android applications engineered with modern Kotlin and cross-platform frameworks, optimized for all screen sizes, tablets, and Android 14+ devices.
- Material You design guidelines
- Google Play Store compliance
- Low-latency offline database sync
iOS App Development
Sleek, fluid iOS mobile applications crafted for iPhone and iPad with Human Interface Guidelines, Apple Pay, FaceID, and seamless Apple ecosystem integration.
- iOS 18 & iPadOS optimization
- Strict App Store review compliance
- Apple Pay & Biometric FaceID
Flutter App Development
High-performance cross-platform apps built with Google's Dart-powered Flutter framework, rendering stunning 60fps native graphics on both Android and iOS.
- Single codebase for iOS & Android
- Custom widget architecture
- Rapid time-to-market speed
React Native App Development
Native-feel cross-platform apps engineered with React Native and TypeScript, easily synchronizing code and state management with your existing web apps.
- Shared web & mobile logic
- Native bridging modules
- Over-the-air (OTA) code updates
Cross-Platform App Development
Strategic mobile architecture delivering identical brand experiences across iOS and Android with half the engineering budget and simplified ongoing updates.
- Unified UI/UX design language
- Simultaneous multi-store releases
- Lower total cost of ownership
Custom Mobile App Development
Custom solutions designed for distinct business models, unique hardware integration (Bluetooth, NFC, Camera), and specialized operational workflows.
- Hardware sensor integrations
- Proprietary database modeling
- 100% intellectual property rights
Business App Development
Internal enterprise mobility tools for field sales reps, logistics tracking, warehouse inspection, technician task logging, and executive approvals.
- Offline-first local SQLite sync
- Secure role-based staff permissions
- Real-time ERP / CRM data connection
E-commerce App Development
Fast mobile shopping apps connecting seamlessly to Shopify, WooCommerce, or custom backends with instant 1-tap checkout, wishlists, and push offers.
- Razorpay & Stripe checkout
- Personalized product recommendations
- Automated abandoned cart pushes
SaaS Mobile App Development
Native mobile companion apps for cloud SaaS platforms, giving users instant access to live telemetry, chat notifications, billing, and core features on the go.
- In-App Purchases (IAP) & Subscriptions
- Biometric account security
- Real-time WebSocket synchronization
Mobile App Maintenance & Support
Ensure your app stays fast, secure, and crash-free. Regular iOS & Android SDK updates, third-party API monitoring, bug fixes, and store compliance maintenance.
- Android 14+ & iOS 18+ support
- Firebase crash telemetry alerts
- App Store annual compliance audits
Mobile Apps I Can Build for Your Business
From consumer-facing on-demand delivery apps to high-security enterprise field portals, here are the mobile solutions I architect and deploy.
Business Mobile Apps
Corporate presence apps, internal employee directories, client collaboration portals, and digital catalog showcases.
E-commerce Apps
Full-featured retail storefronts with product categories, smart search filters, 1-click checkouts, and real-time shipment tracking.
Food Delivery Apps
Live order placement, dynamic restaurant menus, live delivery rider GPS tracking on Google Maps, and instant order notifications.
Booking & Appointment Apps
Real-time slot reservation systems for doctors, wellness salons, legal consultants, and auto service centers with reminders.
Education & LMS Apps
Interactive mobile e-learning with secure video streaming, downloadable notes, chapter quizzes, and progress certificates.
Healthcare Apps
Telehealth consultation apps with video calling, medical records vaults, digital prescriptions, and medicine reorder alerts.
Real Estate Apps
Property listing portals with interactive map searches, virtual photo galleries, neighborhood amenities, and direct agent chats.
Hotel Management Apps
Guest concierge mobile apps for mobile room check-in, keyless access, in-room dining orders, and local itinerary recommendations.
CRM / Business Apps
Field rep tracking, mobile quotation builders, live inventory lookups, customer transaction histories, and digital signatures.
Marketplace Apps
Multi-vendor digital platforms connecting buyers and sellers with escrow payouts, in-app messaging, reviews, and commissions.
Social & Community Apps
Interest-based private social feeds, discussion forums, direct messaging, member badges, media uploads, and community events.
Custom Mobile Applications
Tailored enterprise utilities, IoT hardware controller apps, fitness trackers, and algorithmic tools engineered to your exact specifications.
Mobile App Features & Functionality
Every mobile application I develop includes the core features and security controls necessary to provide an effortless user experience and scalable operations.
User Registration & Login
Secure authentication via Email/Password, OTP SMS verification, biometric fingerprint/FaceID, and Social SSO.
User Profiles
Personalized user dashboards with avatar image uploads, saved delivery addresses, order histories, and settings.
Push Notifications
Automated real-time notifications via Firebase Cloud Messaging (FCM) for order updates, offers, and chat alerts.
GPS & Location Tracking
Live device GPS positioning, Google Maps route plotting, nearby service discovery, and geofencing radius alerts.
Search & Filters
Instant predictive search, multi-category attribute filters, sort by price/distance, and saved search queries.
Chat & Messaging
In-app real-time 1-on-1 or group chat with WebSocket/Firebase, unread message badges, and media attachments.
Payment Gateway
Seamless checkout via Razorpay, Stripe, PayPal, Apple Pay, Google Pay, and UPI with webhook reconciliation.
Shopping Cart
Persistent cart synchronization, coupon promo discounts, tax calculations, and 1-tap fast order checkout.
Booking System
Real-time slot scheduling with double-booking locks, calendar synchronization, and automated reminders.
Reviews & Ratings
Verified customer star ratings, photo review attachments, feedback surveys, and service provider badges.
File & Image Upload
Direct camera capture or gallery file picker with client-side image compression and cloud AWS S3/Cloudflare R2 storage.
Social Login
Frictionless 1-tap sign-in using Google Sign-In, Sign in with Apple, Facebook Login, or WhatsApp OTP authentication.
Real-time Updates
Live driver tracking, instant messaging synchronization, and live stock updates without refreshing the app.
Centralized Admin Dashboard
Web-based control console to manage app users, push broadcasts, product inventories, payment transactions, and telemetry.
Mobile App Technologies I Work With
I leverage modern, battle-tested programming languages, cross-platform frameworks, robust backend servers, and optimized cloud databases to build world-class mobile software.
Mobile App Frameworks
Native-compiled cross-platform mobile apps delivering butter-smooth 60fps performance, responsive layouts, and platform-specific gestures.
Backend & API Infrastructure
High-concurrency cloud backends, secure RESTful JSON APIs, real-time Firebase listeners, and normalized databases capable of supporting millions of mobile app requests.
API, Payment & Third-Party Integration
A great mobile app connects effortlessly with the external tools your business relies on. I integrate industry-standard gateways, mapping services, and cloud tools.
REST APIs
Standardized, secure JSON REST endpoints with token authentication, caching, and rate limiting.
GraphQL
Flexible, high-efficiency data querying reducing mobile bandwidth usage and payload sizes.
Razorpay Integration
Native mobile SDK checkout supporting Indian UPI, credit cards, netbanking, and recurring mandates.
Stripe Integration
Global credit card processing, Apple Pay, Google Pay, and recurring subscription billing.
PayPal Integration
Trusted global mobile checkout enabling users worldwide to make safe payments effortlessly.
Cashfree Payments
Seamless multi-payment gateway routing, instant refund processing, and automated vendor splits.
Google Maps API
Interactive mobile vector maps, autocomplete search, route navigation, and reverse geocoding.
Firebase Suite
Cloud messaging push notifications (FCM), crashlytics, remote config, and real-time database.
WhatsApp API
Direct WhatsApp Cloud API integration for automated order confirmations and customer support.
SMS & Email APIs
High-deliverability OTP text dispatch and transactional emails via Twilio, Fast2SMS, and SendGrid.
CRM / ERP Integration
Direct two-way data pipelines synchronizing leads and mobile orders into HubSpot, Zoho, or SAP.
Custom API Integration
Tailored webhook listeners and legacy system bridges connecting your proprietary infrastructure.
Security, Performance & App Publishing
A great mobile application must be secure, fast, and approved on Google Play and Apple App Store. I handle the complete hardening and launch pipeline.
Secure Authentication
OAuth 2.0 and JWT token authentication, biometric FaceID/fingerprint storage, and automatic session logout.
Role-Based Access
Strict client-side and server-side route guards ensuring users only see authorized screens and permissions.
API Security
SSL certificate pinning, request signature verification, CORS restrictions, and rate-limiting defense.
Data Validation
Strict schema validation for all mobile input fields preventing injection attacks and payload tampering.
Secure Payment Processing
PCI-DSS compliant client-side tokenization ensuring zero sensitive card data touches your servers.
Performance Optimization
Fluid 60fps animations, lazy-loaded lists, background threading, and minimal battery power consumption.
Image & Asset Optimization
WebP image format compression, dynamic image caching, and minimized app download package sizes.
Crash Monitoring
Real-time crash tracking using Firebase Crashlytics with stack trace alerts to resolve anomalies fast.
Android App Deployment
Generating optimized signed Android App Bundles (.aab), ProGuard code shrinking, and keystore signing.
Google Play Publishing
Play Console setup, compliant privacy policy configuration, store screenshots, and approval handling.
iOS App Deployment
Apple Developer provisioning profiles, TestFlight beta distribution, and release archive builds.
Apple App Store Publishing
App Store Connect setup, review guideline compliance, metadata optimization, and successful store approval.
My 8-Step Mobile App Development Process
A structured, milestone-driven agile methodology ensuring your mobile application is built cleanly, tested across real devices, and delivered on time.
Requirement Discussion
Discovery call to analyze your target audience, platform choices, business goals, and core features.
App Planning & Specification
Creating functional specifications, tech stack roadmap, milestone deliverable timeline, and fixed estimates.
UI/UX Design
Crafting intuitive mobile user flows, Figma clickable wireframes, and modern visual design systems.
Frontend / Mobile Development
Coding reactive mobile UI in Flutter or React Native with smooth transitions and modular state management.
Backend & API Development
Engineering high-performance RESTful APIs, database schemas, secure auth, and push notification triggers.
Testing & Optimization
Testing on real Android and iOS devices: UI responsiveness, edge cases, crash audits, and performance tuning.
Store Deployment
Compiling release bundles and publishing to Google Play Store and Apple App Store with full review assistance.
Maintenance & Support
30-day post-launch warranty, ongoing OS compatibility updates, crash monitoring, and feature iteration.
Featured Mobile App Projects
Explore a curated selection of mobile applications, booking systems, e-commerce engines, and SaaS companion apps delivered for global clients.
Tyrewaale On-Demand Booking
Custom on-demand mobile application for tyre fitment bookings, real-time technician GPS tracking, live inventory matching, and UPI payment gateway.
Livlite Telehealth Companion
Cross-platform telehealth app with doctor video scheduling, automated recurring subscription billing, confidential patient medical records, and push alerts.
Humanaid Pharma Store App
Mobile e-commerce application featuring camera prescription upload, automated order fulfillment, dynamic categories, and payment gateway integration.
E2PSYSTEMS Field Dealer Portal
Custom business mobile app for machinery dealers to inspect real-time stock levels, calculate quotations on the spot, and generate PDF invoices.
Top One Percent Mobile LMS
High-concurrency education mobile app handling student video lesson streaming, timed mock test evaluations, flashcards, and instant test score analytics.
Nasamon Executive Advisory App
Executive mobile portal allowing clients to book advisory sessions, access encrypted corporate reports, and pay consultation retainers securely.
Everything You Need to Know Before Building a Mobile App
Answers to common questions regarding development costs, cross-platform technology choices, store publishing, and ongoing maintenance.
Need a Freelance Mobile App Developer?
Let's turn your app idea into a fast, secure and scalable mobile application. Direct senior developer collaboration, transparent milestone pricing, and 100% intellectual property transfer.
Get free business consultation Today
Feel free to contact me any time
Surya Nager, New Delhi, Delhi
info@ajaykumarthakur.in
+91 846-8805-153