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iOS · Android · Flutter · React Native

# Mobile App Development
for Every Platform
Built to Engage & Scale

We design and build high-performance mobile apps for iOS and Android — from consumer-facing apps that go viral to enterprise mobility solutions that transform how your teams work. Native quality, cross-platform efficiency.

Explore Our Services
MVP App in 6–10 Weeks App Store Submission Included 80+ Apps Delivered 4.8★ Avg. App Store Rating
📱
iOS App Development
🤖
Android App Development
🦋
Flutter Cross-Platform
⚛️
React Native Apps
🛒
E-Commerce Mobile Apps
🏥
Healthcare & HealthTech
🔔
Push Notifications & CRM
🔒
Enterprise Mobility Apps
80+
Apps Delivered
6–10wk
Avg. MVP Timeline
4.8★
Avg. App Store Rating
50M+
End-User Downloads
Swiggy Meesho Practo Groww ShareChat Porter Gaana Rapido Byju's PhonePe Swiggy Meesho Practo Groww ShareChat Porter Gaana Rapido Byju's PhonePe
What We Build

## Complete Mobile App Development Services in India

From consumer apps and fintech platforms to healthcare solutions and enterprise mobility tools — we deliver mobile experiences that users love and businesses rely on. Every app is built for performance, retention, and long-term scalability.

📱
Native iOS App Development

Swift and SwiftUI apps built to Apple's Human Interface Guidelines — pixel-perfect on every iPhone and iPad. Full App Store submission, TestFlight beta distribution, In-App Purchase integration, and Apple Sign-In support included.

🤖
Native Android App Development

Kotlin and Jetpack Compose apps optimised for the Android ecosystem — from flagship devices to entry-level Bharat smartphones. Play Store submission, ProGuard obfuscation, adaptive icons, and Google Pay integration included.

🦋
Flutter Cross-Platform Development

One codebase, two stores. Flutter apps with near-native performance, rich animations, and consistent UI across iOS and Android. Ideal for startups and SMEs who want to reach both platforms without doubling their development budget.

⚛️
React Native App Development

JavaScript-powered cross-platform apps that share up to 90% of code between iOS and Android. Perfect for teams who need tight integration with existing React web products — with native modules for hardware access like camera and GPS.

🛒
E-Commerce & D2C Mobile Apps

High-converting shopping apps with product catalogues, Razorpay & UPI payments, COD support, wishlist, order tracking, push notification campaigns, loyalty rewards, and admin dashboards for catalogue and order management.

🏥
Healthcare & HealthTech Apps

HIPAA-aligned telemedicine apps, doctor-patient platforms, appointment booking, digital health records, and remote monitoring integrations with wearables. Built with strict data security, role-based access, and audit logging.

💰
Fintech & Payments Apps

RBI-compliant fintech apps — digital wallets, lending platforms, investment trackers, UPI integrations, KYC flows with Aadhaar / PAN verification, two-factor authentication, and bank-grade encryption and fraud detection.

🔒
Enterprise Mobility Solutions

Secure internal apps for field teams, warehouse staff, sales reps, and executives. MDM integration (Intune / JAMF), SSO via SAML, offline-first data sync, real-time dashboards, and role-based permissions across departments.

🔧
App Maintenance & Modernisation

Rescue and rebuild legacy apps — migration from Objective-C to Swift, Java to Kotlin, or monolith to modular architecture. Ongoing maintenance retainers, OS update compatibility, crash monitoring with Firebase Crashlytics, and performance tuning.

Platform Strategy

## We Build for Every Platform, Every User, Every Goal

Whether you need a consumer app for millions of users, an internal enterprise tool, or a cross-platform product with a lean budget — we recommend the right approach and deliver it with expertise.

🎯
Strategy Before Code
We help you choose the right platform — native, hybrid, or cross-platform — based on your users, budget, and growth plan.
🧑‍🎨
Design That Users Love
In-house UI/UX designers who follow platform-specific guidelines — Material Design for Android, HIG for iOS.
📊
Post-Launch Analytics Built In
Firebase Analytics, Mixpanel, and AppsFlyer integrated from day one so you understand retention, funnels, and LTV.
01
Approach 1 · Maximum Performance
Native iOS & Android (Separate Codebases)
Two dedicated apps — Swift for iOS and Kotlin for Android — delivering the absolute best performance, deepest platform API access, and the most polished UX. Recommended for apps where user experience is the core product differentiator: social, gaming, fintech, health.
Swift / SwiftUI Kotlin / Compose Best Performance Full Platform APIs
02
Approach 2 · Best Value
Flutter Cross-Platform (Single Codebase)
Google's Flutter framework produces native-compiled apps for both iOS and Android from a single Dart codebase. 90%+ code sharing, native-like performance, rich animations, and a rapidly maturing ecosystem. Best value for most startups and SMEs.
Flutter / Dart Single Codebase ~60% Cost Saving Native Performance
03
Approach 3 · JavaScript Ecosystem
React Native (Shared JS Codebase)
Ideal if you already have a React web team — share business logic, state management, and even some components between your web and mobile apps. Meta-backed, battle-tested at Shopify, Facebook, and Discord scale.
React Native Expo Shared Web Logic OTA Updates
04
Approach 4 · Internal Tools
Enterprise Mobility & MDM-Integrated Apps
Secure, offline-capable apps for internal use — field teams, delivery partners, warehouse staff, or executives. MDM-managed distribution, SAML SSO, offline-first sync with background conflict resolution, and custom hardware integrations (barcode, RFID, biometric).
Intune / JAMF SSO / SAML Offline-First Custom Hardware
Our Process

## How We Build Your Mobile App — Step by Step

A structured, transparent 8-step process refined across 80+ app projects. You always know where your app is, what's next, and exactly when it ships — no surprises, no scope creep.

01
🔍
Discovery & App Strategy
1–2 Days
Hover to explore
Step 01 · 1–2 Days
Discovery & App Strategy
Structured workshop covering target users, key user journeys, platform choice (iOS / Android / both), monetisation model, backend needs, and third-party integrations. Output: Product Requirements Document + Feature Priority Matrix.
PRD + Feature Matrix
02
🏗️
Architecture & API Design
1–2 Days
Hover to explore
Step 02 · 1–2 Days
Architecture & API Design
Data models, REST/GraphQL API contracts, push notification architecture, offline sync strategy, third-party SDK decisions, and scalability plan. Prevents costly rewrites later by making the right decisions upfront.
API Contract Doc
03
🎨
UI/UX Design & Prototype
5–8 Days
Hover to explore
Step 03 · 5–8 Days
UI/UX Design & Prototype
High-fidelity Figma screens for every key user journey — onboarding, core flows, push notification templates, and empty states. Interactive prototype for user testing before a single line of code is written.
Figma Clickable Prototype
04
⚡
Sprint-Based Development
6–12 Weeks
Hover to explore
Step 04 · 6–12 Weeks
Sprint-Based Development
2-week sprints with working builds after each sprint. TestFlight (iOS) and Firebase App Distribution (Android) for your team to test on real devices. Notion / Linear project board shared for complete transparency.
Real Device Builds Every 2 Weeks
05
🧪
QA, Device Testing & Performance
4–5 Days
Hover to explore
Step 05 · 4–5 Days
QA, Device Testing & Performance
Manual and automated testing on real iOS and Android devices across 12+ screen sizes. Memory profiling, battery drain analysis, network performance on 4G/3G, accessibility checks (WCAG 2.1), and security penetration testing.
12+ Device Coverage
06
🚀
App Store Submission
Launch
Hover to explore
Step 06 · Launch
App Store Submission & Launch
Full submission to App Store and Google Play — screenshots, metadata, keywords, privacy policy, app review management, and rejection handling. We manage the entire submission process so you don't have to learn it.
End-to-End Store Submission
07
📊
Analytics & ASO Setup
Post-Launch Week 1
Hover to explore
Step 07 · Post-Launch
Analytics & App Store Optimisation
Firebase Analytics, Mixpanel funnel setup, crash monitoring with Sentry / Crashlytics, App Store keyword research and ASO metadata optimisation, and first-week retention analysis to identify drop-off points.
Firebase + Crashlytics + ASO
08
🔄
Maintenance & Feature Roadmap
Ongoing
Hover to explore
Step 08 · Ongoing
Maintenance & Feature Roadmap
Monthly retainers from ₹35,000/mo — OS update compatibility (iOS/Android new releases), new feature sprints, push campaign management, backend scaling, and quarterly user retention reviews with actionable recommendations.
From ₹35K/mo

Ready to start your mobile app project? Let's talk — we respond within 24 hours.

Technology Stack

## Industry-Standard Mobile Tech Stack

We use proven, modern technologies that give your app the best performance, scalability, and developer ecosystem — no proprietary lock-in, no legacy frameworks. Your codebase, your IP.

Mobile Frameworks & Languages
Modern, battle-tested frameworks chosen for performance, ecosystem maturity, and long-term maintainability across iOS and Android platforms.
📱
Swift
iOS Native
🖼️
SwiftUI
Declarative iOS UI
🤖
Kotlin
Android Native
🎨
Jetpack Compose
Android Modern UI
🦋
Flutter
Cross-Platform
⚛️
React Native
JS Cross-Platform
📦
Expo
RN Managed Workflow
🐦
Dart
Flutter Language
Not sure which framework suits your app?
Backend & API Technologies
Scalable server-side APIs that power your mobile app's data, authentication, real-time features, and third-party integrations.
🐍
Django / DRF
Python REST APIs
⚡
FastAPI
High-perf APIs
🟡
Node.js
Real-time / WebSocket
🔥
Firebase
BaaS + Realtime DB
🔵
Supabase
Auth + Postgres
📡
GraphQL
Flexible Data Fetching
🔐
JWT / OAuth2
Auth & SSO
Need a backend for your mobile app?
Data & Local Storage
From cloud databases to on-device caching and offline-first sync — ensuring your app works fast even on poor network connections.
🐘
PostgreSQL
Primary Database
🍃
MongoDB
Document Store
❤️
Redis
Cache & Sessions
📱
SQLite / Room
On-Device (Android)
💾
Core Data
On-Device (iOS)
🦋
Hive / Isar
Flutter Local DB
Need offline-first or complex data sync?
Push Notifications & User Engagement
Retention is built into your app from day one — personalised push campaigns, in-app messaging, and deep link routing to bring users back.
🔥
Firebase FCM
Push Notifications
📣
OneSignal
Push Campaigns
📊
Mixpanel
User Analytics
📈
AppsFlyer
Attribution & MMP
🔗
Branch.io
Deep Linking
Want best-in-class user retention from day one?
Payments, Billing & KYC
RBI-compliant payment integrations and KYC flows that work across India's payment ecosystem — UPI, cards, wallets, BNPL, and Aadhaar eKYC.
💳
Razorpay
UPI + Cards + EMI
📲
PhonePe SDK
UPI Payments
💰
Stripe
International Cards
🏦
Cashfree
Payouts + Settlements
🪪
Digio / Signzy
Aadhaar eKYC
🧾
GST APIs
Invoice Generation
Building a fintech or payments app?
DevOps, CI/CD & Monitoring
Automated build pipelines, crash reporting, and performance monitoring so every release goes out confidently and every issue is caught before your users notice.
🏎️
Fastlane
CI/CD Automation
⚙️
GitHub Actions
Build Pipelines
🔥
Firebase Crashlytics
Crash Monitoring
🎯
Sentry
Error Tracking
📲
Firebase App Distrib.
Beta Testing
☁️
AWS / GCP
Cloud Infra
Need a robust CI/CD pipeline for your app?
Deep Expertise

## Advanced Mobile Engineering Capabilities

Beyond standard app development — we bring specialised expertise in hardware integrations, AI, offline-first architectures, and compliance-grade security that most agencies can't deliver.

🤖
On-Device AI & ML

TensorFlow Lite and Core ML models embedded directly in the app — real-time image recognition, NLP, recommendation engines, and predictive features that work completely offline without API calls.

📡
BLE & IoT Integration

Bluetooth Low Energy and IoT hardware integrations — fitness wearables, smart retail scanners, medical devices, industrial sensors, and custom hardware using Core Bluetooth (iOS) and Android BLE APIs.

🔐
Enterprise Security & MDM

App-level encryption (AES-256), biometric auth, certificate pinning, jailbreak / root detection, MDM policy enforcement via Intune and JAMF, and MAM (Mobile Application Management) for BYOD environments.

📶
Offline-First Architecture

Apps that work flawlessly without internet — local-first data with background sync, conflict resolution, and delta updates. Critical for field teams, logistics workers, and healthcare staff in low-connectivity environments.

Why AdvertSneak

## Why Businesses Choose Us for Mobile App Development

Over 80 apps delivered across fintech, healthcare, e-commerce, and enterprise verticals. Here's what makes us different from the hundreds of agencies competing for your project.

📐
Platform-First Design

Platform-specific UI/UX — Material Design for Android, HIG for iOS. Users feel at home immediately, reducing churn from day one.

🚀
Fast Time-to-Market

Agile sprints with builds every 2 weeks. MVP apps from discovery to App Store in as little as 8 weeks — without cutting corners on quality.

🏪
App Store Expertise

We've navigated 100+ App Store and Play Store submissions — including complex rejections, age ratings, and privacy nutrition labels.

🔒
Security-First Development

OWASP Mobile Top 10 audits, data encryption at rest and in transit, and penetration testing before every release. Your users' data is safe.

🌏
Bharat-Ready Optimisation

Apps optimised for India's network reality — fast on 4G/3G, adaptive image loading, small APK size, and support for entry-level Android devices.

📊
Retention by Design

Analytics, onboarding flows, and push notification strategy built into the app from day one — not bolted on after launch when users have already churned.

💻
Full-Stack Mobile Team

iOS, Android, Flutter, backend API, UI/UX design, and QA — all in-house. No freelancer coordination or communication gaps across vendors.

🛡️
IP Ownership Guaranteed

100% source code ownership transferred to you on final payment. Signed NDA from day one. No proprietary frameworks that lock you in to us.

Case Studies

## Mobile Apps We've Built That Delivered Results

Real apps, real numbers. Here's a snapshot of what we've delivered for clients across India's most competitive mobile markets.

🛒
E-Commerce · Flutter
D2C Fashion App — iOS & Android

Cross-platform Flutter shopping app with AR try-on, Razorpay UPI payments, loyalty rewards, and real-time inventory sync across 4 warehouses. Launched in 9 weeks from design to App Store.

4.9★
App Store Rating
3.2×
Mobile Conversion Rate
500K+
Downloads (6 months)
🏥
HealthTech · React Native
Telemedicine Platform — 12 States

Doctor-patient video consultation app with ABHA health ID integration, e-prescription, digital health records, and Aadhaar eKYC onboarding. Fully HIPAA and DISHA compliant, deployed across 12 Indian states.

150K+
Patients Served
40%
Reduction in No-Shows
99.7%
Uptime SLA
🏭
Enterprise · Native Android
Field Force App — Manufacturing Giant

Offline-first native Android app for 2,000+ field engineers managing machine maintenance, spare parts inventory, and service reports — with barcode scanning, digital signatures, and background sync over intermittent networks.

60%
Faster Report Submission
₹2.4Cr
Annual Savings
2000+
Daily Active Engineers
Client Reviews

## What Our Mobile App Clients Say

★★★★★
"

AdvertSneak delivered our Flutter app in 8 weeks — faster than any agency we'd spoken to, without sacrificing quality. Our App Store rating went from 3.2 to 4.8 after they rebuilt our legacy app. Their post-launch support is exceptional.

RK
Rahul Keshav
Founder, StyleSnap India
★★★★★
"

We needed a HIPAA-compliant telemedicine app fast. The AdvertSneak team understood healthcare compliance better than we expected from a tech agency. The app handles 5,000 consultations daily and has had zero major incidents in 18 months.

SM
Dr. Sunita Mehta
CTO, MedConnect India
★★★★★
"

The offline-first architecture they designed for our field force app was exactly what 2,000 engineers working in remote factory locations needed. Sync is seamless, the UI is intuitive, and the project was delivered two weeks ahead of schedule.

VP
Vikram Patel
Head of IT, Bharat Industries
FAQ

## Frequently Asked Questions

Everything you need to know about our mobile app development services before starting your project.

How long does it take to build a mobile app?

A typical MVP mobile app takes 8–12 weeks from kick-off to App Store submission. Simple apps (3–5 screens, basic backend) can ship in 6 weeks. Complex apps with real-time features, payments, hardware integrations, or AI can take 16–24 weeks. We provide a detailed project timeline after the discovery session.

Should I build a native app or use Flutter / React Native?

For most startups and SMEs, Flutter is our top recommendation — near-native performance, a single codebase for iOS and Android, and roughly 40–60% cost savings vs native. Native (Swift + Kotlin) is best for apps with complex hardware access, extreme performance requirements (gaming, AR), or where platform-specific integrations are core to the product. We'll recommend the right approach after understanding your use case.

Do you handle App Store and Google Play submission?

Yes — we manage the complete App Store (iOS) and Google Play (Android) submission process, including screenshots, app description, keywords, privacy policy, age rating, app review responses, and rejection handling. You'll need an Apple Developer account (₹8,000/yr) and a Google Play Developer account (one-time $25). We guide you through setting these up if you don't have them.

What is the approximate cost of mobile app development?

App development cost depends on complexity, features, and platform choice. Indicative ranges: Simple app (5–8 screens, basic backend) — ₹3–6 lakh. Medium complexity (15–25 screens, payments, notifications, admin panel) — ₹8–18 lakh. Complex / enterprise app (40+ screens, custom hardware, AI features, compliance) — ₹25 lakh and above. We provide a detailed cost breakdown after the free discovery call.

Will I own the source code after the project?

Absolutely. 100% of the source code, assets, and documentation is transferred to you upon final payment. We sign an NDA and IP assignment agreement at the start of every project. We don't use proprietary frameworks — everything is built with open-source technologies. You can take the code to any developer in the world.

Do you provide ongoing maintenance after launch?

Yes — we offer monthly maintenance retainers starting from ₹35,000/mo. This covers OS compatibility updates (Apple and Google release major updates every September/October that often require app changes), bug fixes, security patches, Firebase Crashlytics monitoring, and dedicated hours for new features. We recommend at least a 3-month maintenance plan post-launch.

Mobile App Development

## Ready to Build Your Mobile App?

Tell us your idea — we'll provide a free project estimate, platform recommendation, and tech stack advice within 24 hours. No obligations, no sales pressure.

Free Project Estimate
NDA on Request
24-Hour Response
IP Ownership Guaranteed
Your Name *
Email Address *
Phone Number
Type of App
Tell Us About Your App *

🔒 NDA available on request. All discussions strictly confidential.

Mobile App Project Enquiry
We'll respond within 24 hours
Message Sent!
Our mobile app team will be in touch shortly.
First Name *
Last Name
Email Address *
Phone Number
What type of app do you need?
Tell Us About Your App *

NDA available on request. All discussions are confidential.