ZEVATS
iOS & Android Architecture

Mobile App Development.

We design and build iOS and Android mobile applications for customers on the go and teams working in the field. Engineered with 60fps animations, rock-solid offline synchronization, and deep hardware sensor integration.

Operational Challenges

The Critical Problems We Solve

01

Fragile Connectivity & Data Loss

Field workers and mobile users frequently encounter spotty cellular coverage. Standard web apps crash or drop critical form submissions.

02

Costly Double Codebases

Maintaining separate Swift (iOS) and Kotlin (Android) development teams doubles engineering costs and introduces feature parity delays.

03

Sluggish Hybrid App Lag

Poorly built hybrid web-wrappers suffer from input lag, clumsy scroll physics, and battery drain that drive negative app store reviews.

Scope & Execution

Key Features & Deliverables

iOS + Android

Single Codebase Cross-Platform Apps

High-performance React Native / Flutter applications delivering 100% native platform UX across both Apple iOS and Google Android devices.

Offline First

Local-First Offline Synchronization

Embedded local SQLite / WatermelonDB storage allowing users to inspect data and log work without internet, auto-syncing when reconnected.

Hardware

Hardware & Sensor Integration

Direct integration with device cameras for barcode/QR scanning, GPS geolocation tracking, biometric Face ID / Fingerprint login, and Bluetooth.

Messaging

Intelligent Push Notifications

Targeted transactional alerts, scheduling reminders, and status updates via Apple APNs and Firebase Cloud Messaging (FCM).

Field Tech

Field Operations & Dispatch Consoles

Specialized technician tools for signature capture, photo attachments, job dispatching, and field work verification.

App Store QA

Full App Store Submission & Compliance

Complete management of Apple App Store Review guidelines and Google Play Store policies, including cryptographic signing and release tracks.

Disciplined Lifecycle

Our Engineering & Delivery Process

PHASE 01

Mobile User Journey & Ergonomics

We map touch targets, thumb-zone navigation, and physical user environments (one-handed field use, bright daylight readability).

PHASE 02

Mobile UI Design & Haptic Feedback

We craft pixel-perfect mobile interfaces adhering to Apple Human Interface Guidelines and Google Material 3 standards.

PHASE 03

Engineered Architecture & Sync Engines

We build clean API integration, local SQLite data persistence, background sync services, and automated device integration tests.

PHASE 04

Store Publishing & Lifecycle Support

We navigate App Store and Play Store review submissions, monitor crash logs via Sentry, and deliver regular OS compatibility updates.

Tools & Frameworks

Relevant Technologies & Tooling

Mobile Core
  • React Native
  • Expo Application Framework
  • TypeScript
  • Swift / Kotlin Bridges
Offline Database
  • SQLite Embedded
  • WatermelonDB
  • Secure Storage / Keychain
APIs & Sync
  • GraphQL / REST APIs
  • WebSockets
  • TanStack Query
  • Firebase FCM
DevOps & Tooling
  • Fastlane
  • GitHub Actions CI/CD
  • TestFlight
  • Google Play Internal Tracks
Commercial Impact

Measurable Business Benefits

Direct Customer Engagement Channel

Mobile apps live on your customer's home screen, delivering up to 4x higher engagement and retention compared to standard browser visits.

Accelerated Field Work Velocity

Equip field technicians, delivery drivers, and inspectors with streamlined apps that capture signatures, barcodes, and photos in seconds.

50% Savings on Cross-Platform Delivery

A unified React Native codebase delivers top-tier performance on both platforms while cutting your development and maintenance costs in half.

Application Contexts

Suitable Use Cases & Industries

Field Service & Maintenance Companies

Mobile Work Order & Inspection Apps

Field service technicians inspecting infrastructure, capturing timestamps and photos offline, and generating customer sign-offs.

B2B SaaS & Portals

Mobile Companion App for Existing SaaS

Providing executive and team subscribers with on-the-go notifications, approval workflows, and quick metric dashboards.

Logistics & Fleet Operators

Driver Dispatch & Delivery Tracking

Drivers scanning waybills, following optimal GPS delivery sequences, and uploading instant proof-of-delivery signatures.

Clear Answers

Frequently Asked Questions

For 95% of commercial business and SaaS applications, cross-platform with modern React Native is the superior business choice. It compiles to native UI components, achieves 60fps performance, and saves 50% in ongoing maintenance.

Ready to engineer your Mobile App?

Speak directly with our technical leadership. We review your requirements and outline clear technical scope, milestones, and timelines.