High-Fidelity Web &
Mobile App Engineering.

We engineer Digital Experience Platforms (DXP) and high-performance mobile apps that bridge the gap between native power and web reach. From offline-first resilience to real-time sync, we build the interfaces of institutional growth.

Request UX/Performance Audit

60FPS Native Performance

Offline-First Ready

Multi-Platform Core

Digital Experiences Trusted by Global Consumer Brands

99%
Lighthouse Score

Average performance across enterprise portals.

40%
Faster Delivery

Via shared cross-platform codebases.

2x
User Engagement

Driven by high-fidelity UI/UX design systems.

100%
Offline Sync

Zero data loss in low-connectivity areas.

Institutional Diagnosis

The Product Fidelity Gap.

Why do 60% of enterprise mobile initiatives fail to retain users?Because "pretty screens" without high-fidelity engineering results in brittle, laggy experiences that users abandon.

Brittle Hybrid "Jank"

Standard agencies use generic wrappers that struggle with UI Lag and Battery Drain, leading to a "cheap" web-view feel that hurts brand authority.

60FPS Native Fidelity

We engineer Hardware-Accelerated Interfaces. Whether React Native or Native iOS, we guarantee 60FPS smoothness and sub-100ms interaction latency.

"Spinner-Hell" Architecture

Apps built with "Online-Only" logic break the moment a user enters a lift or a basement, resulting in Data Loss and Abandonment.

Offline-First Resilience

Architecting Deterministic Data Sync. We build apps that function perfectly without a signal, syncing data silently and reliably the moment they reconnect.

Black-Box Templates

Reliance on third-party design templates creates Scaling Roadblocks and generic UX that fails to differentiate your product in a crowded market.

Proprietary Design Systems

We build custom Institutional Component Libraries. You own a scale-ready design system that ensures visual and technical consistency across Web, iOS, and Android.

/// Interface Engineering

Digital Product
Engineering Hub.

We bridge the gap between "standard apps" and High-Fidelity Experiences. Explore our specialized silos designed for native-grade performance, bi-directional sync, and institutional scale.

Unified Core

Cross-Platform Apps

Engineering Unified Codebases with React Native and Flutter. We deliver 95% code reuse without sacrificing native interaction fidelity.

React NativeFlutterShared Logic
60FPS Native

Native Engineering

Harnessing Hardware Acceleration with Swift and Kotlin. We build for high-compute tasks, AR/VR integration, and Metal-level performance.

Swift / SwiftUIKotlin / JetpackNDK / Metal
App-Like Web

PWA Solutions

Deploying Web-Scale Ubiquity. We engineer high-install PWAs with advanced service-worker caching and background sync capabilities.

Service WorkersWeb App ManifestCache API
B2B Core

Enterprise Portals

Architecting Complex Data Workflows. We build secure, RBAC-protected portals for high-frequency internal and B2B operations.

Next.js / ReactRBAC / SSOReal-Time Data
Omnichannel

DXP Engineering

Building Headless Content Meshes. We engineer composable DXPs that deliver consistent, personalized experiences across every touchpoint.

Headless CMSPersonalizationMACH Arch
Resilient

Real-Time & Offline

Securing Always-On Data Sync. We use CRDTs and bi-directional storage logic to ensure zero data loss in disconnected environments.

CRDTs / SyncSQLite / RealmWebSockets
/// Vertical Experience

Engineered for
Digital Dominance.

High-Trust Banking

FinTech & Wealth

Engineering ultra-secure mobile banking cores with biometric auth and real-time ledger synchronization.

Biometric Identity Vaults
Anti-Tamper Logic Layers
Real-Time Transaction Meshes
PCI-DSSE2E Encrypted

Clinical Portals

Healthcare & MedTech

Building PHI-compliant interfaces for patient engagement and complex clinical data visualization.

FHIR Data Interoperability
DICOM Image Viewers (Web)
Offline Clinical Entry
HIPAAHL7 Ready

Resilient Field Ops

Logistics & Supply Chain

Maximizing field productivity with heavy-duty offline-first apps designed for low-connectivity environments.

Bi-Directional Conflict Sync
Local-First DB Architecture
Background Geo-Tracking
Offline-FirstReal-Time

Omnichannel DXP

Retail & E-Commerce

UX Core

Creating high-conversion shopping experiences using headless architectures and PWA technology.

Sub-Second Page Loads
Headless CMS Integration
Personalized Push Meshes
MACH ArchPWA
/// The Coretus Advantage

Don’t Design Buttons.
Engineer Engagement.

Why waste $200k and 4 months building a Design System, Auth, and Offline-Sync from scratch? We inject the Coretus Digital Kernel™ into your project on Day 1—a high-fidelity product foundation pre-optimized for 60FPS performance and biometric security.

By bypassing the "component phase" of development, your budget is 100% focused on proprietary user workflows that drive retention and market leadership.

Day 1

UI/UX Readiness

4 Months

Time-to-Market Saved

Native Fidelity: Pre-built support for hardware acceleration, haptics, and biometrics.
$200k Product Value Injected
The Digital Experience Fabric (v5.0 Enterprise)

Atomic UI Core

Institutional, accessible component library.

Offline Engine

Deterministic bi-directional sync logic.

Identity Vault

Biometric & JWT secure auth mesh.

UX Observability

Real-time heatmaps & crash telemetry.

Result: 100% Focus on Experience

/// Managed Product Capacity

Digital Product
Engineering Units.

Stop hiring developers one by one. We deploy High-Fidelity Squads—autonomous units of elite UI/UX engineers, mobile architects, and real-time backend specialists.

From Native iOS/Android to Headless Web Ecosystems, our squads arrive with the Coretus Digital Kernel™ and a proven delivery playbook. Zero onboarding lag; immediate product velocity.

The Top 1% Engineering Standard

Vetted for 60FPS rendering and complex sync logic.

1/110
Selection Rate
Configure Your Product Squad
Lead

Product Architect

Owns the technical roadmap, headless architecture, and multi-platform core logic.

MACH ArchAPI Design
Fidelity

UI/UX Engineer

Expert in hardware acceleration, 60FPS animations, and native-grade interaction.

SwiftUI/KotlinSkia
Native

Mobile Core Lead

Ensures absolute cross-platform performance across iOS, Android, and Web PWA.

React NativeFlutter
Resilience

Data Sync Lead

Maximizes offline-first resilience. Focuses on CRDTs and bi-directional storage sync.

CRDTsOffline-First
/// Engineering Fidelity

See the Interface Engine in Action.

A 100-second deep dive into how Coretus Squads achieve 60FPS fluidity and deterministic sync. No mockups—just real code, hardware acceleration, and native bridge logic.

Coretus Mobile & Web Engineering Briefing
Product Engineer
Your Product Briefer
Liam Thorne, Chief Product Engineer
01:40 • 4K UX Fidelity

60FPS Stress Test

Watch our hardware-accelerated rendering engine handle complex data visualizations without dropping a single frame.

Deterministic Sync

See how our Offline-First architecture manages bi-directional conflict resolution in high-concurrency environments.

Design-to-Code Velocity

Watch the Coretus Digital Kernel™ inject an institutional design system into a blank canvas in real-time.

/// Engagement Specs

Strategic Product
Partnership.

Whether you need a specialized mobile strike team for a native 60FPS sprint or a permanent engineering division for long-term product sovereignty, our models scale with your roadmap.

Full Experience IP Ownership
48h Product Talent Replacement SLA
Fidelity-Guaranteed Design MSA
Core Offering
Best For Velocity

Managed Product Squads

Autonomous pods (UI/UX + Mobile Eng + Backend) injected into your roadmap. We manage the high-fidelity execution; you own the product vision.

72 HoursDeployment Time
60FPS FocusFocus Area
Best For Discovery

Product Strategy & Advisory

Strategic technical leadership. We audit your UX maturity, define Design Systems, and architect multi-platform roadmaps before you write a line of code.

ImmediateStrategic Start
UX ROIFocus Area
Best For Enterprise

Experience Build-Operate-Transfer

We incubate your Sovereign Digital division. We hire the engineers, build the proprietary UI/UX libraries, and legally transfer full ownership to your HQ.

24 MonthsTransfer Cycle
Equity AssetOutcome
Best For Scale

Dedicated Product ODC

Your private offshore Digital Center of Excellence. We provide high-end device testing labs, HR, and compliance for specialized teams of 20+.

4-8 WeeksSetup Time
Product ROIOutcome
/// Experience Trust Layer

The Sovereign Product
Trust Infrastructure.

Coretus builds with a Privacy-by-Design ethos. We embed institutional-grade governance into the UI kernel, ensuring that biometric security, accessibility, and regulatory compliance are baked into the core experience.

Hardened Biometric Security

Implementation of Secure Enclave (iOS) and Strongbox (Android) for hardware-level encryption of sensitive user credentials.

WCAG 2.2 Institutional Compliance

Automated accessibility linting and manual screen-reader audits to ensure 100% inclusivity for global enterprise users.

Zero-Leakage Data Privacy

Strict GDPR/CCPA data handling mesh that sanitizes PII and ensures local-first data residency for highly regulated industries.

OWASP MASVS

Mobile Security Hardened

WCAG 2.2 AA

Inclusivity Verified

GDPR / CCPA

Privacy Compliant

Store-Ready

Apple & Google Verified

/// Product Validation

Proven Digital Outcomes.

Product Archives
60FPS
Interface Fidelity

High-Fidelity Native Core for Fintech

Neobank struggling with Hybrid App "Jank" and 3-second chart rendering delays, leading to high user churn.

Refactored into a Shared TypeScript Core with hardware-accelerated native UI layers, achieving sub-100ms interaction latency.

"Coretus delivered a level of interaction fidelity we didn't think was possible with a cross-platform stack. Our App Store rating jumped from 3.2 to 4.8."

MK
Marcus Kohler
Product Director, NexaFlow Banking
100%
Data Integrity

Offline-First Field Ops for Energy

Fortune 500 field teams losing critical inspection data in zero-signal zones using a standard web-portal.

Engineered a Deterministic Sync Mesh with bi-directional SQLite conflict resolution and background PWA workers.

"Our field engineers now work with total continuity. The offline sync is invisible and indestructible. Coretus saved us thousands in lost data."

SL
Sarah Loomis
VP Digital Transformation, TerraGrid Energy
/// Product Governance

Frequently Asked
Product Specs.

Verified Specs
Fidelity, Security & WCAG Compliant

IP & Source Sovereignty

You retain 100% legal ownership of all source code, Figma design systems, and patentable logic. We deliver clean, documented repositories with zero proprietary vendor dependencies.

Fidelity & Performance SLAs

We commit to 60FPS interaction fidelity and Core Web Vital excellence. Every release undergoes automated performance regression testing to ensure sub-100ms UI responsiveness.

Product Engineering Continuity

We maintain a 15% shadow bench of product-vetted engineers. Personnel rotations include a mandatory 2-week knowledge transfer to ensure zero disruption to your launch roadmap.

App-Layer Security Mesh

We implement OWASP MASVS standards, including biometric hardware-level encryption and certificate pinning. Your app is architected to pass rigorous enterprise penetration tests.

Predictable Sprint Throughput

Flat monthly retainers per squad. You pay for guaranteed sprint velocity, allowing for precise budget forecasting and eliminating the "black hole" of hourly T&M billing.

UX Performance Gaps?

Our Product Architects can provide a free UX Fidelity Audit or a technical performance briefing for your existing mobile or web ecosystem.

Request Product Audit

Ship Native-Grade Digital Assets.

Stop building brittle interfaces. Ship 60FPS, offline-first ecosystems architected for institutional scale, maximum retention, and zero data loss.

60FPS Interaction Fidelity

Offline-First Resilience

100% Code Sovereignty

Request Performance AuditRequest Performance Audit