FFTBench is a powerful and intuitive educational tool that brings Fourier analysis to life on your iOS and macOS devices. Perfect for students, educators, engineers, and anyone curious about signal processing and harmonic composition.

Key Features
- 15 Individual Harmonic Oscillators - Configure amplitude, phase, and sin/cos components for each harmonic with precision controls

- Real-Time Visualization - Watch your signal composition update instantly as you adjust parameters, with smooth, interactive charts

- Color-Coded Display - Individual harmonics in green, composite signal in bold black, with optional sin/cos component visualization in red and blue

- Adaptive Interface - Responsive design that scales beautifully across iPhone, iPad, and Mac screens

- Professional Controls - Adjustable scale range (1-30), scrollable harmonic panel, and toggle switches for component visualization