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Estyne International Limited Logo
ESTYNELTD
International LimitedBuilding Solutions • Empowering Possibilities
iOS & Android Software Engineering

Custom Mobile Apps Built for Speed, Security & Scale.

We engineer fluid, 60fps mobile applications for startups and global enterprises. From fintech wallets and on-demand logistics to enterprise field systems, we build with Flutter, React Native, Swift, and Kotlin—backed by 100% IP ownership and milestone escrow.

100% IP & Code Transfer
Countersigned Mutual NDA
App Store Approval Guarantee
WhatsApp Direct (+234 806 088 6926)
v2.6 PRODUCTION STACK
Mobile Engineering Capabilities:
  • Cross-Platform Flutter & React Native (iOS + Android)
  • High-Throughput Native Swift & Kotlin Core Modules
  • End-to-End Biometric Auth (FaceID & Fingerprint)
  • Offline-First SQLite Cache & Background Synchronization
  • Push Notifications & In-App Messaging (APNs & FCM)
  • Automated CI/CD via Fastlane & GitHub Actions
Average Delivery:4 to 8 Weeks MVP
Tailored Systems

Mobile Applications We Architect & Deploy

From high-security financial transactions to real-time driver dispatch, we engineer apps built for real-world enterprise load.

01

Fintech & Mobile Wallets

Bank-grade mobile wallets, automated peer-to-peer transfers, virtual card generation, and bill payments with biometric two-factor security.

Stack: Flutter, Node.js, PostgreSQL, Paystack, Stripe
02

On-Demand Delivery & Logistics

Dual customer and driver mobile suites featuring real-time WebSockets GPS tracking, route optimization, and milestone payment escrows.

Stack: React Native, Google Maps SDK, Redis, Socket.io
03

EdTech & Learning Platforms

Interactive video course streaming, offline lecture downloads, quiz evaluations, push notifications, and verified digital certificates.

Stack: Flutter, AWS CloudFront, SQLite, Node.js
04

HealthTech & Telemedicine

HIPAA-compliant doctor consultations, appointment booking, encrypted video calls, and prescription delivery integrations.

Stack: React Native, WebRTC, Encrypted Storage, FastAPI
05

B2B Marketplaces & E-Commerce

High-speed product catalogs, instant checkout, multi-vendor order tracking, inventory sync, and multi-currency payment gateways.

Stack: Flutter, Stripe, GraphQL, PostgreSQL
06

Field Operations & Mobile POS

Offline-first inventory management, Bluetooth thermal printer communication, barcode scanning, and auto-sync when network returns.

Stack: Kotlin / Swift, SQLite, Bluetooth Low Energy
Delivery Framework

From Napkin Concept to App Store Feature

No guessing games. You test and approve functional builds at every milestone before releasing payment.

01

Architecture & Figma UI/UX

We define database schemas, third-party API contracts, and create high-fidelity interactive prototypes in Figma for user validation.

02

Sprint-Based Engineering

Bi-weekly sprints where working APK and TestFlight builds are pushed directly to your phone for testing and review.

03

Security & QA Hardening

Stress testing, automated UI unit tests, offline sync validation, and penetration audits to prevent vulnerabilities.

04

Store Launch & Warranty

Full App Store and Google Play publication management with guaranteed approval, plus 30-day complimentary bug warranty.

Case Study Highlight

Oppos: On-Demand Dispatch & Logistics Mobile Suite

Engineered dual cross-platform mobile apps for both riders and customers. Integrated live real-time WebSockets GPS location tracking, automated tariff calculations, in-app payments, and push dispatch alerts with sub-second latency.

60 FPS
Fluid UI Transitions
< 350ms
Dispatch Latency
100%
Store Approval
View Full Case Studies
Got Questions?

Frequently Asked Questions About Mobile App Engineering

For 90% of modern applications (Fintech, E-commerce, On-Demand Delivery, Social), cross-platform frameworks like Flutter or React Native deliver 60fps native performance while reducing your engineering costs and delivery timeline by 40-50% because a single codebase powers both iOS and Android simultaneously. If your app requires heavy hardware-level computations, direct ARKit, or native Metal shaders, we build pure native Swift and Kotlin.

Ready to Turn Your Mobile App Vision into Reality?

Book a free 30-minute technical architecture call. We will review your feature scope, recommend the ideal tech stack, and provide an exact milestone budget breakdown.

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