Mobile App Development Company
iOS, Android, React Native, Flutter apps. Tested on real Indian devices, UPI payments, multilingual support, DPDP-compliant.
Build Your Mobile App →Technologies
What We Offer
React Native Development
One TypeScript codebase, two platforms. Full-featured iOS and Android apps with Expo, React Navigation, Zustand state management, Firebase Cloud Messaging, and real-time capabilities. Deployed to TestFlight and Google Play.
Flutter Development
Google's Skia/Impeller-powered framework for pixel-perfect, brand-consistent UIs across iOS and Android. Ideal for products with complex animations and custom design that standard components can't deliver. Dart language.
Native iOS (Swift/SwiftUI)
SwiftUI and UIKit for products that need deep platform integration—Face ID, HealthKit, ARKit, Core Data, Apple Watch, or Wallet. Native feels native when it matters. Required for apps with complex Apple ecosystem integration.
Native Android (Kotlin/Compose)
Jetpack Compose and Android Architecture Components for India's dominant platform (87% market share). We test across the full range of Indian OEM hardware—Xiaomi, Samsung, Realme, Vivo, and entry-level devices under ₹10,000.
AI Features in Mobile Apps
On-device ML with TensorFlow Lite and Core ML for privacy-preserving inference. Cloud AI via OpenAI, Anthropic, or Google Gemini for complex language tasks. Document scanning with OCR, personalization, smart search, and chatbots.
App Store Publishing & ASO
App Store Connect and Google Play Console setup, ASO (keyword research, screenshots, descriptions), privacy policy compliance, review rejection management, staged rollout handling, and ongoing store optimization.
Process
How We Work
Discovery & Platform Decision
We review requirements, target audience, budget, and timeline—and give you a frank recommendation on platform (native vs cross-platform) and technology stack. We define the MVP feature set, identify technical risks, and prioritize features for launch. Output: project brief, timeline, and fixed-cost estimate.
UX Design & Prototyping
Mobile-first design in Figma with thumb zone analysis (right-hand, left-hand reachability), platform conventions (Apple Human Interface Guidelines and Material Design 3), and an interactive prototype for user testing before development starts. We validate navigation, gestures, and screen flows.
Development in Sprints
Two-week sprints with TestFlight (iOS) or APK (Android) builds for every sprint. You test on your actual device—not simulator screenshots. Every sprint ships working, tested features. Code is reviewed, tested with unit tests, and deployed to staging. You attend sprint reviews and provide feedback continuously.
QA, Device Testing & Launch
Tested across a device matrix: multiple iOS versions (iOS 15+), and multiple Android OEM devices (Xiaomi, Samsung, Realme, Oppo) including entry-level hardware (3-4GB RAM). Network condition testing for 4G and poor 3G. App Store submission, rejection handling, and staged rollout (20% → 50% → 100%).
Why Crenosoft
Why Choose Us
Tested on Real Indian Devices
We don't just test on iPhone 15 Pro and Pixel 8. We profile and optimize on real entry-level Android devices (₹8,000-15,000 price range with 3-4GB RAM) from Xiaomi, Realme, and Samsung. If it works on a Redmi A3, it works everywhere. This is critical for reaching tier 2/3 cities.
UPI & Indian Payment Integration
We've integrated Razorpay, Cashfree, PhonePe Business, and PayU for 40+ mobile apps. UPI deep linking (opens Google Pay, PhonePe, Paytm directly), webhook handling, payment reconciliation, GST-compliant invoices, and refund workflows. All tested on real transactions in sandbox and production.
Multilingual & Regional Support
Hindi, Tamil, Telugu, Marathi, Bengali, Gujarati, Kannada, Malayalam—proper i18n with correct text rendering for Devanagari and other scripts. Right-to-left (RTL) support for Urdu if needed. Font optimization to avoid large bundle sizes. Common for e-commerce and government apps targeting tier 2/3 cities.
DPDP Act 2023 Compliance
Every mobile app includes DPDP compliance by default—consent management (explicit opt-ins, not pre-checked boxes), data minimization, audit logs for data access, and cascading delete workflows. For regulated industries (fintech, healthcare, lending), we handle RBI, ABDM, and SEBI requirements. Data localization for Indian users.
Offline-First Architecture
Critical for India's patchy mobile networks. Apps work offline and sync when connectivity returns—using SQLite, Realm, or WatermelonDB for local storage. Users don't lose work when 4G drops to 3G or disappears in a metro tunnel. Common for field workforce, attendance, and inventory apps.
App Store Approval Expertise
Apple rejects 40%+ of first submissions. We minimize this with complete privacy policy documentation, accurate data usage disclosures (App Tracking Transparency), correct age ratings, and review of known rejection triggers. When rejections happen (they will), we handle the resolution. 95%+ approval rate on resubmissions.
Frequently Asked Questions
Should we build native or cross-platform?
Cross-platform (React Native or Flutter) for most cases—one codebase, two platforms, faster launch, 40-50% lower cost. Native Swift or Kotlin when you need: (1) Deep hardware integration (ARKit, HealthKit, Bluetooth Low Energy, NFC). (2) Performance-critical features like real-time video processing or 3D graphics. (3) Target audience strongly skewed to iOS-only or Android-only. (4) Complex Apple ecosystem integration (Watch, Wallet, WidgetKit). For 80% of apps, cross-platform is the right choice. Read full comparison: React Native vs Flutter in 2025.
How long does it take to build a mobile app?
A focused MVP (core features, no scope creep): 10-16 weeks for cross-platform (React Native/Flutter). Native apps for both iOS and Android: 20-30 weeks (essentially two projects). Timeline depends heavily on: design complexity (custom animations add time), number of backend integrations (payment, maps, third-party APIs), feedback speed during sprints (slow feedback = delayed timelines), and whether backend already exists. We give detailed estimates after the discovery phase, not from a 20-minute call.
Do you integrate Indian payment gateways?
Yes—Razorpay, Cashfree, PhonePe Business, PayU for UPI, netbanking, wallets, and card payments. We handle the full integration: UPI deep linking (opens Google Pay, PhonePe, Paytm directly from your app), webhook management for payment status callbacks, payment reconciliation (matching payments to orders), GST-compliant invoice generation, refund workflows, and failed payment retry logic. We've processed ₹50+ crores through mobile payment integrations we've built. All tested on real transactions in sandbox and production.
How do you handle performance on affordable Indian Android devices?
We profile and optimize on real entry-level hardware (₹8,000-15,000 price range with 3-4GB RAM, typically Snapdragon 4xx or MediaTek Helio). This means: (1) Aggressive image lazy loading and compression. (2) Minimal bundle size (code splitting, tree shaking). (3) Background task optimization (WorkManager, not constant polling). (4) Memory leak prevention (profiling with Android Studio Memory Profiler). (5) Network optimization (caching, offline mode, request batching). An app that performs on a Redmi A3 or Samsung Galaxy A04 performs everywhere. Critical for reaching tier 2/3 cities.
Can you add AI features to our existing app?
Yes. Common additions: (1) AI-powered search (semantic search, not just keyword matching). (2) Document scanning with OCR (invoices, ID cards, receipts). (3) Chatbot integration (customer support, product recommendations). (4) Personalization features (recommended products, content feeds). (5) Recommendation systems (collaborative filtering, content-based). We audit the existing codebase first to understand architecture, assess what's practical to integrate versus what requires refactoring, and provide a scope and estimate. Typical timeline: 4-8 weeks for feature addition.
What about App Store review rejections?
Apple rejects 40%+ of first submissions for: incomplete privacy policies, inaccurate data usage disclosures (you claimed 'no data collected' but analytics SDK is present), age rating issues (app contains user-generated content but rated 4+), missing App Tracking Transparency prompt, or violating design guidelines. We minimize rejections with: complete privacy policy documentation, accurate Privacy Nutrition Labels (what data is collected, how it's used), correct age ratings, review of known rejection triggers before submission, and test builds on TestFlight before production submission. When rejections happen (they will), we handle the resolution—usually resolved within 2-3 business days. 95%+ approval rate on resubmissions.
How much does mobile app development cost in India?
Indicative ranges: Simple app (iOS + Android, basic features) ₹4-8 lakhs, consumer app with auth, profiles, feeds ₹8-18 lakhs, e-commerce app with payments ₹12-25 lakhs, on-demand / marketplace app (two-sided) ₹20-45 lakhs, AI-powered mobile app ₹15-35 lakhs, enterprise mobile app with ERP integration ₹25-60 lakhs. All prices exclude GST. Factors: native vs cross-platform (native costs 40-50% more), design complexity (custom animations, complex UI), backend development (new backend vs connecting to existing), integrations (payments, maps, analytics, third-party APIs), and timeline (rushed timeline = higher cost). We provide fixed-cost estimates after discovery, not ballpark from a brief call.
Do you handle backend development or just the mobile app?
Both. We can build the full stack—mobile app + backend API + database + cloud infrastructure. Most projects use Firebase (Auth, Firestore, Storage, Functions, FCM) for rapid development, or Node.js/Python REST APIs with PostgreSQL/MongoDB for custom requirements. If you already have a backend, we connect to your existing APIs. Backend cost is typically 30-40% of total project cost. See API Development Services for backend-only projects.
Can you take over a half-built mobile app project?
Yes, but we do a code review first (₹20,000-40,000 for 1-2 day audit). We need to understand: codebase quality (is it maintainable?), architecture (is it scalable?), technical debt (what needs refactoring?), test coverage (are there tests?), and whether the current approach is viable. We give you an honest assessment—including if we think a rebuild is faster/cheaper than continuing. We've rescued 15+ mobile projects from other agencies, offshore teams, or abandoned freelancers. Common issues: no state management, spaghetti code, memory leaks, no offline mode, poor performance.
Do you provide post-launch support and app updates?
Yes. Mobile apps require ongoing maintenance—OS updates (iOS 18, Android 15), dependency upgrades, App Store guideline changes, bug fixes, and feature additions. We offer monthly retainers (₹1.5-5 lakhs/month depending on app complexity): security updates, dependency upgrades, crash monitoring and fixes, performance optimization, App Store / Play Store updates, new feature development (10-20 hours/month), and priority support. Most clients stay with us for 12-24 months post-launch, then either take maintenance internal or continue on reduced retainer.
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