MindNova

About MindNova

MindNova, also known as Focus Planet, is an Android productivity app designed for students and personal project management.

Unlike a simple timer, MindNova connects every focus session to a specific project or sub-project. Users can create projects, start a stopwatch or Pomodoro session, save focus records, review statistics, and observe long-term progress through a visual galaxy of project planets.

Inspiration

Many timer applications only record isolated numbers. After a study session, users may know how long they focused, but not which subject or project received that time.

MindNova was created to connect time tracking with project context. Each project becomes a planet, and accumulated focus time is represented as the planet's growth.

How We Built It

MindNova uses a hybrid Android architecture:

Java and AndroidX for the native Android container
WebView for loading the application interface
Next.js static-exported pages stored inside the APK
IndexedDB for local project, focus-record, note, and deadline storage
JavaScript and Android Bridge for file export
Local routing logic for HTML, JavaScript, CSS, SVG, and Next.js page data

The main user flow is:

Create a project or sub-project
Select a project
Start a stopwatch or Pomodoro session
Pause or finish the session
Save the focus record
Review statistics and planet growth

Challenges

The main technical challenges included running a Next.js static export inside Android WebView, resolving nested page-data routes, supporting offline access, handling WebView cache invalidation, adapting the interface to Android system bars, and exporting files to the Android Downloads directory.

We solved these problems by implementing a local asset resolver, an Android WebView container, a version-based cache policy, an IndexedDB data model, and a JavaScript-to-native file bridge.

What We Learned

This project helped us understand:

Android Activity and WebView integration
Offline static web application packaging
IndexedDB data modeling
Project-based time aggregation
Android window inset and back-button handling
Native file storage through MediaStore
Testing hybrid Android and web interfaces

MindNova is designed for local, single-user use. The current version focuses on project-based focus tracking, offline access, statistics, and visual feedback.