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App Icon

Expense Tracker

A simple, clean, no-nonsense Android app for tracking daily credits, debits, balances, and groups. The app focuses on privacy (no networking), offline reliability, and smooth UX across modern Android versions.

Screenshots

Home Accounts Groups
Create History Choose Account Choose Group
View Day History View Month History History Details
Backup and Restore Backup Frequency

Browse all images here. Do check a working example on Youtube

Apk Download

Download the latest Expense Tracker android app here

✨ Features

Core

  • Track multiple account balances
  • Add credit, debit, and transfer entries
  • Create groups to organize transactions
  • Local backup & restore
  • Automatic backup using WorkManager
  • Fully offline – no network access

UI & Experience

  • Material 3 styling
  • Smooth UI backed by state management with Kotlin Flow and SharedFlow
  • Responsive layouts using ConstraintLayout + RecyclerView + CardView

🔧 Tech Stack

Platform: Ubuntu 24.04 LTS Android Studio: Norwhal | Kotlin 2.0.21 SDK: Target 35, Min 26 Tested On:

  • AVD Android 28, Android 34
  • Physical Android 28

Architecture: MVVM Language: Kotlin

Android Jetpack:

  • LiveData
  • ViewModel
  • Room
  • Navigation
  • Data Binding
  • WorkManager
  • RecyclerView
  • ConstraintLayout
  • Paging3

Async: Coroutines + Flow DI: None Testing: JUnit

🧩 Technical Challenges & Solutions

RecyclerView item selection Implemented a custom item-selection mechanism for predictable behavior across list updates.

Automatic backup using WorkManager Set up periodic work with constraints and carefully handled SDK-level behavior differences.

Storage access across Android versions Handled scoped storage and platform quirks for saving and restoring backup files reliably.

UI state management with Kotlin Flow Used SharedFlow + sealed UI states (UILoading, UISuccess, UIError) for predictable and testable UI updates.

🚀 Upcoming Features (Next 2–3 Releases)

  • Income & expense with categories
  • Track and visualize earning and expenses
  • Export history in pdf, excel, csv etc.
  • Cloud backup + restore

📦 Important Links

Email: rahulstech18@gmail.com

GitHub: Profile

LinkedIn: Profile