FULL-CYCLE MOBILE APPLICATION ENGINEERING

We engineer mobile apps that captivate users and scale to millions.

From fluid iOS & Android consumer experiences to high-security enterprise field apps, we build resilient mobile systems with offline-first sync, sub-second latency, and guaranteed App Store approval.

45+ Products Shipped Live
100% In-House Squad
99.8% Crash-Free Rate
5.0 Clutch Verified
Mobile App UI Showcase - iOS and Android Applications by Creuto
CORE CAPABILITIES

Specialized mobile engineering across every touchpoint.

We don't build generic web wrappers. We write idiomatic, high-performance code tailored to Apple and Google design guidelines with rock-solid background processes.

Native iOS Development

Engineered with Swift, SwiftUI, and Combine. Deep integrations with Apple HealthKit, CoreLocation, Apple Pay, FaceID biometric security, and WidgetKit extensions.

Swift SwiftUI HealthKit Apple Pay

Native Android Development

Built using modern Kotlin and Jetpack Compose. Clean MVVM/MVI architecture, background WorkManager services, Google Play In-App Purchases, and hardware sensor sync.

Kotlin Jetpack Compose Coroutines Room DB

Cross-Platform React Native

Shared TypeScript codebase delivering 90%+ code reuse across iOS and Android without sacrificing 60fps animations, Hermes engine performance, or native look-and-feel.

React Native TypeScript Hermes Engine Reanimated 3

Flutter Cross-Platform

Pixel-perfect multi-platform applications powered by Google Flutter and Dart. Skia-powered UI rendering, high-velocity MVP iterations, and desktop/web parity.

Flutter Dart Bloc State Multi-Platform

Offline-First Data Sync

Zero interruption in low-connectivity environments. Local SQLite and WatermelonDB engines with conflict-free deterministic syncing to backend PostgreSQL clusters.

SQLite WatermelonDB CRDTs Queue Sync

Mobile Security & Compliance

End-to-end payload encryption, SSL certificate pinning, OWASP Mobile Top 10 hardening, encrypted keychain storage, and enterprise SOC2/HIPAA compliance readiness.

Cert Pinning Biometrics Keychain AES OWASP Hardened
6-PHASE ENGINEERING LIFECYCLE

A predictable, milestone-driven mobile development process.

Modeled after world-class product engineering workflows. We eliminate guesswork with fixed scope sprints, transparent Jira/GitHub access, and bi-weekly TestFlight builds.

01
Phase 1 · Week 1–2

Discovery & PRD Scoping

We define target user personas, core user stories, third-party API dependencies, and security constraints to generate an ironclad Product Requirements Document.

  • Comprehensive PRD & Feature Matrix
  • App Store Compliance Risk Assessment
  • System Architecture Blueprint
02
Phase 2 · Week 2–4

Clickable UI/UX Prototyping

High-fidelity interactive Figma flows conforming strictly to Apple Human Interface Guidelines and Google Material Design 3. Tested with real users before writing code.

  • Complete Figma Design System & Tokens
  • Interactive Clickable Mobile Prototype
  • Micro-interaction Animation Specs
03
Phase 3 · Week 4–5

Architecture & API Setup

Database schema design, GraphQL/REST endpoint scaffolding, auth token lifecycle, and CI/CD automated deployment pipelines configured for iOS and Android.

  • Modular State Management Boilerplate
  • Fastlane CI/CD Automated Pipelines
  • Secure JWT / OAuth2 Auth Gateway
04
Phase 4 · Week 5–10

Milestone Sprint Sprints

Two-week engineering sprints delivering functioning TestFlight (iOS) and Internal Testing (Android) builds every 14 days for stakeholder review and feedback.

  • Bi-weekly TestFlight / APK Releases
  • Clean Git PRs with Peer Code Reviews
  • Offline Storage & Cache Optimization
05
Phase 5 · Week 10–12

Automated QA & Device Testing

End-to-end regression testing across 20+ real physical iOS and Android devices, memory leak profiling, battery drain analysis, and network throttling simulations.

  • Automated Detox / Maestro Test Suites
  • 99.5%+ Crash-Free Metric Guarantee
  • Security Penetration Audit Report
06
Phase 6 · Launch & Beyond

Store Deployment & Dual-Track Ops

Guaranteed Apple App Store and Google Play approval, metadata/ASO optimization, crash telemetry via Sentry, and 60 days of zero-cost warranty support.

  • 100% Guaranteed Store Approval
  • Sentry & Mixpanel Real-Time Observability
  • 60-Day Dedicated Warranty Window
BATTLE-TESTED TOOLS

The mobile technology stack we trust for production.

We avoid experimental, unmaintained libraries. Every component in our mobile stack is enterprise-backed, actively maintained, and battle-tested at scale.

Native Frameworks

Swift 5.9 SwiftUI Kotlin Jetpack Compose Xcode Android Studio

Cross-Platform

React Native 0.74+ Flutter 3.x TypeScript Dart Expo EAS Reanimated

Mobile Backend & Sync

Node.js / NestJS PostgreSQL Redis SQLite / Watermelon GraphQL / REST Firebase FCM

DevOps & QA

Fastlane GitHub Actions Sentry Crashlytics Maestro E2E Postman Mixpanel
Make My Look Mobile Application
FEATURED MOBILE CASE STUDY

Make My Look — On-Demand Salon & Beauty Booking Ecosystem

Rebuilt the dual-app consumer and vendor marketplace from scratch in React Native. Eliminated vendor double-bookings with sub-second WebSocket slot reservations and offline-first client profiles.

60,000+
Bookings Processed
4.9 ★
App Store Rating
<400ms
Checkout Latency
FREQUENTLY ASKED QUESTIONS

Everything you need to know about our mobile process.

Clear answers on timelines, tech selection, IP ownership, and Apple/Google review criteria.

If you are building a product that requires equal feature parity on both iOS and Android (e.g. marketplaces, social apps, fintech, SaaS portals), React Native or Flutter is the most cost-effective and fastest route, saving 35-40% in engineering budget with 90%+ shared code. If your app requires heavy custom hardware interactions (BLE firmware sync, heavy ARKit/Metal shaders, or continuous background GPS telemetry), 100% native Swift and Kotlin is the superior choice. We help you choose the right path during Phase 1.

A focused, high-quality MVP typically launches in 10 to 12 weeks. Complex enterprise mobile applications featuring offline synchronization, complex role-based permissions, and custom ERP connectors take 14 to 18 weeks. Every project is scoped into 2-week sprints with deliverables you can test on your phone.

Yes, 100%. We handle all certificates, provisioning profiles, privacy manifests, App Store Review guidelines compliance (including Apple In-App Purchase rules and Account Deletion flows), and respond directly to Apple and Google review inquiries until your application is live in the stores.

You own 100% of the code, designs, tokens, documentation, and IP from day one. All repositories are maintained directly under your organization's GitHub or GitLab account. We never lock clients into proprietary hosting frameworks.

Every engagement includes a 60-day post-launch warranty where any unexpected bugs or store compliance adjustments are resolved immediately at zero additional cost. Following the warranty, we offer flexible retainers for new feature roadmaps and annual iOS/Android OS updates.

READY TO BUILD YOUR APP?

Let's build a mobile app your users love.

Schedule a 30-minute technical consultation directly with Nihar Ranjan Rout. We will discuss your app's core user journeys, feasibility, architecture, and estimated timeline.

Direct Founder Contact
Email: me@niharrout.com
Location: Creuto HQ, Bhubaneswar, Odisha, India