April 5, 2025

Mathoo App

📌 Overview

Mathoo is my first Android application, born during the 2020 lockdown. Designed to transform mental math training into a fun experience, the app quickly found its audience with over 3,000 users on the Google Play Store and an average rating of 4.6/5.

Role: Solo Mobile Developer
Technologies: Kotlin (migrated from Java), Jetpack Compose, Firebase
Results: 3,000+ active downloads

🛠️ Technical Stack & Evolution

This project served as a personal laboratory to master the modern Android ecosystem:

Technology Migration: Initially developed in Java, I completely rebuilt the app using Kotlin to leverage its modern features and safety.
Modern UI/UX: Transitioned to Jetpack Compose for the user interface, adhering to Material Design principles for intuitive navigation.
Architecture & Build: Utilized Android Jetpack for robustness and Gradle for dependency and build management.
Backend Services: Integrated Firebase for data and cloud management, paired with Google Analytics to track user behavior.

✨ Key Features

Local Multiplayer: Implemented Nearby Sharing to allow users to challenge friends nearby without an internet connection.
Duolingo-style Gamification: Developed a progression system inspired by Duolingo (streaks, levels, rewards) to boost user retention.
Advanced Statistics: Detailed dashboards to help users track their progress over time.
Fluid Animations: Integrated LottieFiles for rich vector animations that energize user interactions.
Monetization: Integrated Google Ads to support the project’s ongoing development.

📈 Impact & Learning

This project allowed me to manage a product’s full lifecycle, from the initial idea to maintaining a real user base. I learned to iterate based on user feedback and optimize the performance of a consumer-facing application.

🔗 Links & Resources

Source Code: [View GitHub Repository]

🚀 Developed by Evanescent.