Skip to content

Mobile Apps · Mini Project

Offline-First Notes App with Sync

Write notes with no network and sync them safely when you are back online

1-2 weeks build

Overview

Every note is written to Room first, so the app works fully in airplane mode. Changes are tracked with a dirty flag and a version number, and a WorkManager job with a network constraint pushes and pulls them against Firestore. When the same note was edited on two devices, the app detects the version clash and shows both copies side by side instead of silently overwriting one.

What makes it stand up

  • 01Room as the single source of truth for the UI
  • 02Background sync that waits for a network connection
  • 03Version numbers to detect conflicting edits
  • 04Side-by-side conflict screen to keep either copy or both
  • 05Soft deletes so removals sync across devices

Module breakdown

  1. 01

    Editor

    Create, edit, pin and tag notes with instant local saves.

  2. 02

    Local store

    Room entities with sync status, version and timestamps.

  3. 03

    Sync worker

    Uploads dirty notes and pulls remote changes when online.

  4. 04

    Conflicts

    Compares versions and asks the user how to resolve a clash.

  5. 05

    Search

    Full-text search over titles and bodies using Room FTS.

After this, you will be able to

  • Explain the offline-first pattern and why Room owns the UI state
  • Defend version-based conflict detection over last-write-wins
  • Demo a conflict created on two devices and resolved on one

Technology stack

  • Kotlin
  • Jetpack Compose
  • Room
  • WorkManager
  • Firebase

Complete kit

₹5,699₹9,699
-41%

Delivered in under 48 hours

Level
Mini Project
Domain
Mobile Apps
Build time
1-2 weeks
Difficulty

You receive

  • Complete, commented source code
  • 60-90 page project report (IEEE format)
  • Editable presentation deck
  • Architecture, ER and UML diagrams
  • Local setup and deployment guide
  • Sample dataset or seed data
  • Viva question bank with answers
  • One 45-minute walkthrough call
  • 30 days of doubt-clearing support
Compare tiers

Keep looking

Students also considered

PopularMajor Project

Mobile Apps

Hackathon Management System

A web-based platform for organizing and managing hackathons, enabling administrators to manage events, participants, teams, problem statements, submissions, judging, and results through a centralized system. It streamlines the hackathon workflow from registration to evaluation and result generation.

  • Java
  • Spring Boot
  • React.js
  • MySQL
  • +4
₹7,500₹12,000
4.8/2 reviews
Major Project

Mobile Apps

Ride-Sharing Mobile App

Rider and driver apps with live tracking and fare estimation

  • Flutter
  • Firebase
  • Google Maps
  • Node.js
  • +1
₹4,399₹7,699
4.7/158 reviews
Major Project

Mobile Apps

Food Delivery App

Customer, restaurant and rider apps with live order tracking

  • React Native
  • Expo
  • Node.js
  • MongoDB
  • +2
₹4,399₹7,599
4.7/156 reviews