CalcOnion

CalcOnion is a handy Android application developed using Kotlin in Android Studio. This simple yet powerful app allows users to perform basic mathematical calculations and also provides real-time currency conversion features.

Features

• Addition, subtraction, multiplication, and division calculations.
• Currency conversion feature that lets users convert between different currencies.
• Real-time exchange rates from fixer.io to ensure accurate conversions.
• Offline mode with the last fetched exchange rates, ensuring usability even when there's no internet connection.

Tech Stack

Back End: Kotlin

IDE: Android Studio

Deployment

To deploy this project on your Android phone run

  app-debug.apk

Manual

To convert a currency fill the amount, choose the source and target currency and press "🔄".

To update currency rates press "💰".

To swap selected currencies press "↔️".

To copy the result at input press "📋".

Screenshots