Simple & Smart Calculator for Quick and Accurate Calculations
About Calculator
Calculator is a lifestyle app developed by Ruwantha Madhushan and Nimantha Madhushan.
Download Statistics
Calculator has been downloaded 2.1 thousand times. In the last 30 days, the app was downloaded 170 times.
User Ratings
The app has no ratings yet.
App Information
Calculator is FREE to download. The APK download size is 17.20 MB. The latest version available is 2.0.0. The last update was on November 7, 2025.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play September 2025.
Description
📱 App Description
The Calculator App is a modern, user-friendly, and responsive calculator designed to work seamlessly on both mobile devices and tablets. It combines a clean interface with advanced features like history tracking , making it suitable for quick daily calculations as well as more complex mathematical tasks.
Built with Flutter, it adapts automatically to different screen sizes:
📲 Mobile layout: Simple, single-screen design with easy navigation to history.
💻 Tablet layout: Split-screen mode showing the calculator on one side and the history panel on the other for a productive workflow.
✨ Key Features
✅ Basic & Scientific Calculations
Perform standard arithmetic operations (+, −, ×, ÷).
Advanced functions like square root (√), percentages
✅ Beautiful User Interface
Modern gradient-based keypad buttons with shadows for a 3D effect.
Smooth responsive layout that scales beautifully across devices.
Dark theme with elegant colors that are easy on the eyes.
✅ Calculation History with Hive Storage
Every calculation is automatically saved to local storage using Hive.
Easily revisit past calculations through the History Screen.
Clear history with a single tap, with confirmation to avoid mistakes.
Refresh support for tablet view to instantly reload the latest history.
✅ Responsive Design
Mobile: Focused calculator view with history accessible via the app bar.
Tablet: Dual-pane view where you can see your calculator and history side by side for maximum productivity.
✅ Offline First
Works entirely offline without requiring internet access.
Fast and lightweight – optimized for performance.
✅ Custom Branding
Personalized app icon, splash screen, and branding image for a polished professional look.
🛠️ Tech Stack & Implementation
Flutter (Dart) → Cross-platform mobile and tablet support.
Hive → Lightweight NoSQL database for offline history storage.
Math Expressions Package → Safely parses and evaluates mathematical expressions with support for custom functions.
Responsive UI → Uses LayoutBuilder to detect screen width and switch between mobile and tablet layouts automatically.
Custom Splash & Icons → Integrated with flutter_native_splash and flutter_launcher_icons for a branded experience.
📊 Example Use Cases
Students solving math problems.
Professionals doing quick finance or percentage calculations.
Anyone needing a fast, reliable calculator with history tracking.
🚀 Why Choose This App?
Unlike standard calculators, this app is responsive, offline, stylish, and history-enabled. It doesn’t just calculate — it helps you stay organized by remembering your past calculations, and it’s optimized to work beautifully across all devices.
Recent changes: In this update: • Fresh new app icon! • New feature: Records are now automatically deleted after a set date. • Various bug fixes and performance improvements.
Get a detailed PDF report for Calculator with download trends, rating history,
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