Android • Kotlin • Jetpack Compose
Zoma Cruz · Android DeveloperBuilding Android apps with real use cases.
I build Android products with Kotlin and Jetpack Compose, focusing on clear interfaces, useful features and maintainable mobile experiences.
Kotlin
Jetpack Compose
MVVM / MVI
Room
Kaori
Learn English through play
Study • Games • Pronunciation
GymProgApp
✦
AI-assisted learning
↗
Track training progress
App Gallery
A closer look at the apps.
A visual overview of personal Android projects and selected professional work.
About Me
Android apps built around useful ideas.
I’m an Android Developer focused on building practical mobile products with Kotlin and Jetpack Compose. I enjoy turning real needs into clear, maintainable app experiences and improving them through testing and iteration.
What I build
Mobile products built around real user needs.
From English learning to workout tracking, I focus on clear flows, useful tools and features that support the core product experience.
Featured Personal Project 01
Kaori
Learn English through study, games and pronunciation.
An Android learning app focused on regular and irregular English verbs through study flows, games, pronunciation practice and AI-assisted learning.
Regular & irregular verbs
Games
Pronunciation
AI-assisted learning
Featured Personal Project 02
GymProgApp
Track workouts, tools and progress in one place.
An Android app for logging workouts, sets, weight and repetitions, with progress tracking, training utilities, timers and AI-assisted training tools.
Workout logging
Progress metrics
Timers & tools
AI-assisted training
Demo & Media
See the apps in action
Short product demos and interactive prototypes showing the main flows of each app.
Kaori
English learning in action
Study, games, pronunciation and progression.
GymProgApp
Training progress in action
Workout logging, metrics, tools and PDF export.
Tech Stack
Tools behind the apps and the portfolio.
Under the hood
A closer look at the technologies, architecture and tools used across my Android projects and this portfolio.
Kaori + GymProgApp
Android Apps
A broader view of the Android stack, architecture, patterns and integrations used across both projects.
Kotlin
Jetpack Compose
MVI · Kaori
MVVM · GymProgApp
ViewModel
Room
Coroutines / Flow
View more › Show less ⌃
Kotlin
Jetpack Compose
Material 3
AndroidX
Navigation Compose
ViewModel
MVI · Kaori
MVVM · GymProgApp
Intent → State
UI / Domain / Data Layers
Repository Pattern
Use Cases
Dependency Injection
Room
DataStore
Coroutines / Flow
StateFlow
Gson
Moshi
Koin · Kaori
Hilt · GymProgApp
Retrofit
OkHttp
Gemini AI
Coil
Text-to-Speech
CameraX
WorkManager
Play Services Fitness
Lottie
JUnit
Espresso
Compose UI Test
MockK
Turbine
Truth
Coroutines Test
Gradle
KSP / Kapt
Git / GitHub
PageWeb
Portfolio Web
A simple web stack focused on speed, responsive layout and interactive media.
HTML5
CSS3
JavaScript
Responsive Design
Figma Embed
YouTube Embed
Git / GitHub
✦ Ready for the next quest?
Let’s build something useful.
Android Developer focused on Kotlin, Jetpack Compose and practical mobile products. Explore my projects, demos and selected case studies to see how I approach product and Android development.