Journey-Led UX
Clear onboarding, thumb-friendly navigation, accessible states, and reusable design systems.
Mobile App Engineering & Product Development
Native & Cross-Platform Mobile Apps Built for iOS & Android
We design and engineer high-rated mobile applications using React Native, Flutter, Swift, and Kotlin. From consumer apps to enterprise workforce tools — built with offline sync, biometric security, and sub-second reactivity.
01 Product-first UX
02 iOS & Android ready
03 Secure offline capability
One product, every screen
Native feelDesigned for real-world use
60+
Mobile Products Shipped
4.9/5
App Store & Play Rating
500k+
Installs & Downloads
99.9%
Crash-Free Session Rate
Mobile Product Capabilities
Types of Mobile Applications We Engineer
Tailored native and cross-platform mobile solutions built for iOS App Store and Google Play Store deployment.
01
React Native & Flutter Mobile Apps
Single codebase delivering 60 FPS native performance on both iOS and Android, cutting development timelines by 40% while preserving native device capabilities.
02
On-Demand & Service Booking Apps
Real-time GPS live tracking, driver dispatch algorithms, automated scheduling calendars, integrated in-app payment gateways, and instant push alerts.
03
Field Operations & Enterprise Mobile
Offline encrypted data capture, biometric login (Face ID / Fingerprint), high-speed barcode/QR code scanning, and automated enterprise CRM data sync.
04
Retail & E-Commerce Mobile Apps
Frictionless native mobile checkout with Apple Pay and Google Pay, personalized product recommendation feeds, and loyalty rewards push notifications.
05
Real-Time Messaging & Voice Apps
WebSocket-powered instant messaging, WebRTC video calling, audio voice notes, presence tracking, and real-time dashboard notifications.
06
Fintech Wallets & Health Apps
PCI-DSS compliant mobile wallets with instant P2P money transfers, and HIPAA compliant telemedicine apps with encrypted video consultation support.
Cross-Platform & Native Code Architecture
60 FPS Smooth Reactivity & Single-Codebase Efficiency
Architect 60 FPS native performance mobile applications leveraging React Native, Flutter, Swift, and Kotlin with unified UI design systems, native bridges, and 40% faster time-to-market.
✓
Single-Codebase iOS & Android Deployment
Share up to 85% of business logic across platforms, dramatically reducing bug fix overhead and feature release delays.
✓
Native Device API Integration
Direct hardware access to Camera, Bluetooth LE, NFC, GPS location services, and haptic feedback engines.
✓
App Store & Play Store Submission Readiness
Careful alignment with Apple review requirements, Human Interface Guidelines, Google Play policies, and Material standards.
Shared product logic with native device capability
Resilient sync for low-connectivity environments
Offline-First Sync & Security
Zero Data Loss in Low-Connectivity & Enterprise Security
Guarantee operational resilience with local SQLite encrypted storage, background data sync, Face ID / Touch ID biometric authentication, and targeted push notification campaigns.
✓
Offline SQLite / WatermelonDB Storage
Allows field teams to capture inspection forms, photos, and signatures offline, auto-syncing when internet returns.
✓
Biometric Face ID & Keychain Security
Protect app access with biometric authentication and hardware Keychain API encrypted token storage.
✓
Personalized FCM & APNs Push Notifications
Re-engage app users with automated behavioral push alerts, deep-linking directly into relevant app screens.
What Kind of Mobile Projects We Build
Real-World Mobile Application Projects & Software Solutions
From on-demand ride & delivery services and field inspection software to fintech digital wallets, HIPAA telemedicine apps, and mobile e-commerce stores.
✓
On-Demand Delivery & Booking Apps
Real-time map tracking, automated driver dispatching, fare calculation, customer reviews, and Apple/Google Pay.
✓
Enterprise Field Operation & Inspection Tools
Custom mobile workforce apps featuring offline form capture, digital signature drawing, photo geotagging, and ERP sync.
✓
Fintech Mobile Wallets & P2P Payment Apps
Instant QR payments, biometric wallet unlock, transaction history dashboards, and multi-factor authentication.
✓
Telemedicine & Remote Healthcare Apps
HIPAA compliant WebRTC video appointments, prescription tracking, lab report downloads, and doctor scheduling.
Mobile products shaped around real user journeys
Product quality at every layer
More Than Screens: A Mobile Product Built for Adoption
We connect thoughtful UX, dependable engineering, device-level testing, and production insight so your app remains useful after launch—not just impressive in a demo.
Device-Matrix QA
Real-device testing across screen sizes, OS versions, network conditions, and interruptions.
Privacy & Security
Secure storage, least-privilege access, encrypted transport, and privacy-aware analytics.
Production Insight
Crash reporting, performance traces, release analytics, and actionable health monitoring.
Mobile SDLC Process
Our 6-Step Mobile App Engineering Process
Our disciplined mobile software process ensures top ratings on App Store and Google Play.
01
UX Prototyping
Interactive Figma mobile prototypes, gesture animation mapping, design system creation, and user testing.
02
Native Architecture
API contract definitions, database schema planning, offline sync setup, and state management selection.
03
Cross-Platform Coding
Agile sprint development in React Native, Flutter, Swift, or Kotlin with bi-weekly TestFlight builds.
04
TestFlight & Beta QA
Device matrix testing across iOS/Android screens, crashlytics tracking, network throttling, and security penetration.
05
Store Publishing
App Store & Google Play Store submission management, App Store Optimization (ASO), and screenshot design.
06
Growth & SLA Maintenance
24/7 crash monitoring, OS version updates (iOS/Android releases), push notification campaigns, and SLA support.
Mobile Technology Stack
Frameworks, Languages & SDKs We Engineer With
We build using industry-standard mobile cross-platform frameworks and native OS SDKs.
React Native & Flutter
60 FPS Cross-Platform Mobile Frameworks
Swift & Kotlin Native
Pure Native iOS & Android Performance
Firebase & Push Notifications
FCM, APNs, Crashlytics & Analytics
Apple Pay & Google Pay SDKs
Native 1-Click Biometric Payment Checkout
Quantifiable ROI
Business Impact: Hybrid Webview vs Native/Cross-Platform
See how custom React Native / Flutter engineering compares to laggy webview wrappers.
Hybrid Webview Wrappers
- ✕ Laggy touch scrolling and low frame rates causing negative app store reviews.
- ✕ No offline data access resulting in app crashes during connection dropouts.
- ✕ Insecure local storage vulnerable to data leaks on jailbroken devices.
- ✕ High Apple App Store rejection rates due to non-native UI look and feel.
Sibiri Mobile App Engineering
- ✓ 60 FPS native UI reactivity delivering a 4.9/5 average App Store user rating.
- ✓ Offline SQLite storage ensuring 100% data capture even without internet.
- ✓ Hardware Face ID / Keychain encryption protecting user credentials.
- ✓ Store-ready releases prepared around Apple and Google submission requirements.
FAQ
Frequently Asked Questions
Everything you need to know about custom mobile app development with Sibiri Innovation.
Do you build mobile apps for both iOS and Android simultaneously?
Yes. Using React Native or Flutter, we build single-codebase mobile applications that publish natively to both the Apple App Store and Google Play Store, reducing time-to-market by 40%.
Do you assist with Apple App Store and Google Play Store publishing?
Yes, 100%. We handle developer account setup, App Store Optimization (ASO), privacy policy compliance, screenshot generation, and submission reviews until your app is live.
Can our mobile app work offline without an active internet connection?
Yes. We implement local encrypted SQLite database storage so users can capture data, fill forms, and browse content offline. When connectivity is restored, the app automatically syncs back with your cloud server.
How long does a custom mobile application development project take?
A standard cross-platform mobile application build takes 6 to 10 weeks, including Figma UX prototyping, sprint coding, TestFlight beta testing, and store publishing.
Can you improve or rebuild an existing mobile app?
Yes. We can audit the current UX, performance, crash data, codebase, and API layer, then modernize the app incrementally or plan a controlled rebuild with user-data migration and staged releases.
What happens after the app is published?
Optional support covers crash monitoring, OS compatibility updates, security maintenance, store-release management, performance improvements, analytics review, and continued roadmap delivery.