App Development · Mobile · Desktop · Web

Turn Your Business Process Into Software You Own.

A booking system that runs 24/7. A client portal that replaces email chains. A mobile app your customers install once and use every day. We engineer the software layer your business needs — on iOS, Android, desktop, or web — with no platform fees and full code ownership at handoff.

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What We Build

Native mobile, desktop, and installable web apps.

📱

Native Mobile Apps

React Native apps for iOS and Android. App Store and Google Play submission included. Real device performance, native feel.

🖥️

Desktop Applications

Electron apps for macOS and Windows. Offline-first, system tray integration, auto-updater. Distributable as signed installers.

⚡

Progressive Web Apps

Installable from any browser. Works offline. Push notifications. Home screen icon. No App Store approval required.

🤖

AI-Powered Apps

LLM integrations, intelligent dashboards, and automation layers built into your product from day one. API keys always server-side.

🍎 iOS

🤖 Android

🪟 Windows

🍏 macOS

🌐 Web

Six Types of Applications We Engineer

Every platform. Every use case.

Whether you need a customer-facing mobile app, an internal business tool, or a cross-platform desktop application — we engineer it from scratch with code you own.

📱

iOS & Android Mobile App

React Native apps that run natively on iPhone and Android. One shared codebase, full native performance. We handle App Store and Google Play submission end-to-end.

React NativeExpoiOSAndroidApp StoreGoogle Play

Best for: Customer portals, service booking, loyalty apps, health tracking, membership platforms

🖥️

Desktop Application (macOS & Windows)

Electron apps distributed as signed .dmg and .exe installers. Offline-capable, system tray support, auto-updater, native file system access. Looks and feels native on both platforms.

ElectronmacOSWindowsAuto-UpdaterCode Signed

Best for: Internal business tools, coaching platforms, media players, productivity software

🌐

Progressive Web App (PWA)

Installable from any browser. Works offline with service workers. Push notifications, home screen icon, full-screen mode. No App Store approval — ships like a website, works like an app.

Service WorkersWeb PushIndexedDBManifestOffline-First

Best for: Tools that need fast deployment, internal dashboards, content apps

⚙️

SaaS Web Application

Multi-tenant browser-based software with user accounts, subscription billing via Stripe, role-based access, admin dashboard, and usage analytics. The full SaaS stack, custom-built.

ReactNode.jsStripeWebAuthnMulti-tenantVercel

Best for: Subscription products, coaching platforms, member communities, B2B tools

🤖

Intelligent Application

Applications with embedded intelligence — LLM-powered chat, content generation, smart intake routing, recommendation engines, automated reporting. All API keys server-side, zero credential exposure.

Claude APIGPT-4Server-SideRAGStreamingMCP

Best for: Smart assistants, content tools, lead qualification, automated analysis

🔒

Client Portal & Internal Tools

PIN or passkey-gated portals for clients, staff, or members. Change request workflows, document delivery, approval queues, payment tracking — the same system MAVTG deploys for every retainer client.

WebAuthnPIN AuthRole AccessAudit LogNotifications

Best for: Agency client portals, team dashboards, member-only platforms

How We Take Your App From Idea to Launch

Six phases. No surprises.

Most app projects fail at handoff. We build with ownership in mind from day one — you have access to the code at every phase, not just at the end.

Discovery & Scoping

We interview you, map the user flow, and write a Feature Specification Document. Every screen, every interaction, every edge case — documented before we write a line of code. This prevents scope creep and eliminates "I thought it would do X" surprises.

Deliverable: Feature Spec + wireframe sketches + timeline + fixed-fee quote

UI/UX Design System

Before engineering starts, we build the design system — color palette, typography, component library, screen layouts. You approve the design before we write production code, keeping revisions cheap and fast.

Deliverable: Full screen designs + component library + your approval

Engineering & Build

We build in milestone sprints — you see working software every 1–2 weeks, not a black box for 3 months. React Native for mobile, Electron for desktop, or React + Node.js for web apps. All code committed to your private GitHub repo throughout.

Deliverable: Working software milestone builds + GitHub access throughout

QA & Security Review

Every app ships with a security audit — no secrets in client-side code, no ungated endpoints, proper auth flows, input validation, rate limiting. We run the app on real devices (not just simulators) before delivery.

Deliverable: QA report + security audit + device test results

App Store Submission

For mobile apps: we handle the full App Store and Google Play submission package — app icons, screenshots, metadata, privacy policy, review guidelines compliance. We manage the back-and-forth with Apple and Google reviewers so you don't have to.

Deliverable: App live in both stores + listing page + review management

Launch & Handoff

You receive the full GitHub repo, deployment credentials, all API keys documentation, and a written handoff guide. We schedule a 60-minute walkthrough so you or your team can operate the app confidently from day one.

Deliverable: Full code ownership + handoff call + 30-day post-launch support

The Technology Stack

Modern tools. Clean code. You own it all.

Mobile

React NativeExpoiOS Swift (bridges)Android Kotlin (bridges)React NavigationAsyncStorage

Desktop

Electronelectron-builderAuto-UpdaterNode.js IPCCode SigningNotarization

Web App / SaaS

ReactNode.jsVercelStripeWebAuthn / PasskeysREST APIPostgreSQL

Integrations

Claude APIOpenAI GPTMCP ServersRAG / Vector SearchStreaming ResponsesServer-Side Only

Fixed-Fee. No Hourly Surprises.

Every app project is quoted at a fixed price before we start.

No hourly billing. No "scope change" invoices. We write the Feature Spec, you approve the quote, we build it. The price you see is the price you pay.

Mobile App (iOS + Android)

$8,500 — $24,000

Depends on feature count, screens, and integrations. Includes App Store submission.

Desktop Application

$6,500 — $18,000

macOS + Windows. Includes code signing, notarization, and auto-updater.

SaaS Web Application

$5,500 — $22,000

Multi-tenant, billing, auth, admin dashboard. Hosted on Vercel.

PWA

$5,000 — $9,000

Installable, offline-capable, push notifications. No App Store needed.

Full rate card and site-build packages are on the pricing page.

Have an app idea? Let's scope it.

Every app starts with a Discovery phase and a fixed-fee quote before any engineering begins.