Portfolio

Work we're proud of.

From cross-platform mobile apps to enterprise-grade web applications. Here's a selection of what we've built, for ourselves and for clients.

Own Products

Apps we've designed, built, and shipped

Mobile App · iOS & Android

Motorcycle & Car Ride Tracker

A full-featured GPS ride tracking app for motorcycles, bicycles, and off-road vehicles. Built end-to-end, design, development, backend, App Store and Google Play submission.

Features include real-time GPS tracking, elevation charts, speed analysis, route history, vehicle management, media attachments, GPX export, and in-app Pro subscriptions (RevenueCat).

React Native Expo iOS Android RevenueCat GPS / Maps
Download on the App Store Get it on Google Play
Web · Static Site

DevTech LLC Website

This very site, designed and built from scratch using custom HTML, CSS, and JavaScript. No frameworks, no WordPress, no page builders. Fast, accessible, and SEO-optimized.

Built with a lightweight static architecture, self-hosted fonts, accessible navigation, and reusable web components.

HTML / CSS / JS Web Components SEO
Case Details

Motorcycle & Car Ride Tracker, from idea to both app stores

Ride Tracker recording a route with live duration, distance, and speed
Live GPS tracking and ride statistics
Ride Tracker ride details showing a mapped route and trip statistics
Route details, statistics, sharing, and GPX export
Ride Tracker history showing a list of recorded rides
Searchable ride history with no tracking limit

Problem

Track rides with reliable GPS, visualize speed and elevation, manage vehicles, and share routes, all in an easy mobile experience.

Scope

  • iOS & Android app (React Native / Expo)
  • In‑app purchases and subscription (RevenueCat)
  • Offline data storage and background tracking
  • GPX export and media attachments

Stack

  • React Native, Expo, TypeScript
  • Native modules for location & sensors
  • RevenueCat for subscriptions

Who it’s for

Riders who want dependable GPS tracking with clear analytics, casual to enthusiast.

Professional Experience

Enterprise-grade work across industries

Before going full-time with DevTech, founder Devin Miller spent 10+ years building mobile and web applications professionally for companies you've heard of. This enterprise experience shapes how we build for our clients today.

Famous Footwear

Mobile app development for a nationally recognized retail brand.

Thrivent Financial

Software development for financial services, a Fortune 500 company.

Ascension One

Healthcare technology development with enterprise-scale requirements.

Note: Due to NDA agreements, we can't share screenshots or specifics of enterprise client work. We're happy to discuss our experience in more detail during a discovery call.

Our Stack

Technologies we ship with

Mobile

  • React Native / Expo
  • iOS (Swift / SwiftUI)
  • Android (Kotlin / Jetpack)
  • RevenueCat (subscriptions)
  • App Store & Play Store deployment

Web

  • React / Next.js / TypeScript
  • Custom HTML / CSS / JS
  • Shopify (e-commerce)
  • Cloudflare / Netlify / Vercel

Backend & AI

  • Node.js / Python
  • Gemini / Claude / OpenAI APIs
  • Firebase / Supabase / PostgreSQL
  • REST & GraphQL APIs

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