PROJECT 03Android Application

Secure Notebook

A native Android notebook application for writing and organising notes, protecting private ones with a lock, and tracking daily tasks in a built-in to-do list.

PROJECT OVERVIEW

What it's about.

The app works like a standard notes application: users can create, edit and delete notes in a simple, distraction-free interface.

Sensitive notes can be locked so their content stays hidden until the user unlocks them. A to-do list sits alongside the notes, so ideas and tasks are managed in one app. All data is stored on the device using SharedPreferences, so the app works fully offline.

KEY FEATURES

What it does.

Create & manage notes

Write, edit and delete notes quickly in a clean interface.

Locked notes

Lock private notes so their content stays hidden until the user unlocks them.

Built-in to-do list

Add tasks and mark them complete without leaving the app.

Offline, on-device storage

Notes and tasks are saved locally with SharedPreferences, so no internet or account is needed.

Native Android app

Built in Java with Android Studio for a smooth, native mobile experience.

SCREENSHOTS

See it in action.

Secure Notebook app screenshot
TECHNOLOGY STACK

Built with.

Frontend
React Native
Backend
NodeJs
Database
Local Storage
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