Speed Calc Trainer

A Kotlin Multiplatform application built with Compose that helps you train your multiplication speed.
Available on Android, iOS, Desktop (Windows/macOS/Linux) and WebAssembly.

Table of Contents

• Features
• Getting Started
• Prerequisites
• Project Structure

Features

• Practice Mode – Random multiplication questions with instant feedback
• Configurable Ranges – Set minimum and maximum values for each factor
• Smooth Animations – Feedback fades in/out and slides for a polished feel
• Multiplatform UI – Single codebase sharing Compose UI across all targets
• Easy Deployment – GitHub Actions to build & release artifacts for every platform

Getting Started

1. Clone this repo

   git clone https://github.com/RBN-Apps/kmp-speed-calc-trainer.git
   cd kmp-speed-calc-trainer

2. Build all targets with Gradle

   ./gradlew build

3. Run on your platform of choice:

   • Android: Open composeApp in Android Studio and run on emulator/device

   • Desktop:

     ./gradlew :composeApp:runDesktop

   • Web (WASM):

     ./gradlew :composeApp:wasmJsBrowserDevelopmentRun

Prerequisites

• JDK 17+
• Gradle 8.9 (wrapper included)
• Android Studio Flamingo (for Android/iOS)
• Xcode 15+ (for iOS)
• Yarn & Node.js (for WebAssembly)

Project Structure

.
├── composeApp       # Multiplatform Compose module
│   ├── src
│   │   ├── commonMain  # Shared UI & logic
│   │   ├── androidMain
│   │   ├── iosMain
│   │   ├── desktopMain
│   │   └── wasmJsMain
│   └── build.gradle.kts
├── iosApp           # SwiftUI wrapper for iOS
├── build.gradle.kts
├── settings.gradle.kts
└── .github           # CI workflows