Matthew McDevitt

Study and practice app for all three FCC amateur radio exams — Technician, General, and Amateur Extra. Covers the full question pools with study mode, timed practice exams, section drills, per-question history, figure zoom, and discard-to-mastery so you can focus on what you still need.

React Native · Redux · Vite · Android · Web

Field technician app for Android and iOS used on the job for task workflows, clock-in, background geolocation, barcode scanning, document photo capture, quizzes, and Firebase uploads — backed by a custom PHP/MySQL API.

React Native · Redux · Firebase · Vision Camera · PHP · MySQL

2D physics puzzler where you spin, bop, and ricochet mushrooms into holes across dozens of levels. Built in Java with libGDX for Android, Windows, Mac, Linux, OUYA, and Raspberry Pi — with gamepad support, split-screen two-player, and a full soundtrack.

Java · libGDX · Android · Desktop · Gradle

Classic Sudoku with bright squid-themed tiles, multiple difficulties, hints, skins, and score tracking. Same libGDX cross-platform stack as MushRoom Bounce! — Android plus desktop builds, with optional premium unlock for the full puzzle set.

Java · libGDX · Android · Desktop · Gradle