IZONE GALLERY*IZ

Overview

IZONE GALLERY*IZ is an Android application designed for fans of IZ*ONE to browse curated artist photos sourced from various platforms. Developed with Java and Firebase, the app featured Firebase Authentication, Realtime Database integration, and push notifications to alert users of new content updates. It attracted over 15,000 users across 180 countries and was actively maintained until November 2021. The app now operates as a legacy version, offering access to archived content.

Features

● Photo Exploration: Users can browse a regularly updated collection of IZONE photos, ensuring access to the latest images of the group.

● User Authentication: Secure login and account management are facilitated through Firebase Authentication.​

● Realtime Database: Utilizes Firebase Realtime Database to manage post-related data—such as images, likes, and comments—and support live group chat functionality.​

● Cloud Storage: Leverages Firebase Cloud Storage for efficient management and delivery of media content.​

● Push Notifications: Keeps users informed about new content and updates via Firebase Cloud Messaging.

Challenges & Achievements

● Supported stable content delivery amid rapid user growth (15,000+ users), focusing on lightweight data handling

● Analyzed user engagement patterns to optimize push notification timing by day and time, resulting in improved click-through rate