Some Ashot strategies have "simulator" word, what's the difference between them?

Question

I've been working on Ashot library and Browserstack API for Selenium to take screenshots of the devices. And going through the shooting strategies I have noticed that there is a "simulator" strategy for some of the strategies available.

There's very little documentation for the ashot library :/

public static ShootingStrategy iPad2WithIOS8() {
    VariableCutStrategy cutStrategy = new VariableCutStrategy(41, 65, 960);
    return viewportNonRetina(500, cutStrategy);
}

public static ShootingStrategy iPad2WithIOS8Simulator() {
    VariableCutStrategy cutStrategy = new VariableCutStrategy(41, 65, 1250);
    return viewportNonRetina(500, cutStrategy);
}

public static ShootingStrategy iPad2WithIOS8Retina() {
    VariableCutStrategy cutStrategy = new VariableCutStrategy(41, 65, 960);
    return viewportRetina(500, cutStrategy, 2.0F);
}

public static ShootingStrategy iPad2WithIOS8RetinaSimulator() {
    VariableCutStrategy cutStrategy = new VariableCutStrategy(41, 65, 1250);
    return viewportRetina(500, cutStrategy, 2.0F);

There is a Simulator version for each one of those. Does someone know what's the difference between them?

Answer 1

Maybe because one of them works for simulation and others for real devices.