Appcelerator reset app to initial state

Question

I am working on an app with Appcelerator. Appcelerator uses nearly the same kind of require.js like node.js does.

Now I want to implement a feature that logges out the current user and does not leave any trace. The most simple way would be to restart the app, but Appcelerator and especially Apple does not support this.

So i have to open the login window and clean all the data that leaves a trace to the old user.

The easiest way would be to dereference one of the main nodes in the require chain leaving all the data dereferenced and garbage collected. I know there is a way (as mentioned here) to do that in node:

/**
* Removes a module from the cache
*/
function purgeCache(moduleName) {
    // Traverse the cache looking for the files
    // loaded by the specified module name
    searchCache(moduleName, function (mod) {
        delete require.cache[mod.id];
    });

    // Remove cached paths to the module.
    // Thanks to @bentael for pointing this out.
    Object.keys(module.constructor._pathCache).forEach(function(cacheKey) {
        if (cacheKey.indexOf(moduleName)>0) {
            delete module.constructor._pathCache[cacheKey];
        }
   });
};

/**
* Traverses the cache to search for all the cached
* files of the specified module name
*/
function searchCache(moduleName, callback) {
    // Resolve the module identified by the specified name
    var mod = require.resolve(moduleName);

    // Check if the module has been resolved and found within
    // the cache
    if (mod && ((mod = require.cache[mod]) !== undefined)) {
        // Recursively go over the results
        (function traverse(mod) {
            // Go over each of the module's children and
            // traverse them
            mod.children.forEach(function (child) {
                traverse(child);
            });

            // Call the specified callback providing the
            // found cached module
            callback(mod);
        }(mod));
    }
};

So I tried to read out the require-cache in Appcelerator with:console.log(require, "-" ,require.cache); with an output like: <KrollCallback: 0x79f6fe50> - <null>

So now my questions:

1. Is there a way to reach the require-cache in Appcelerator?
2. Do you know a way to clean up a big Appcelerator-App?

Since it is possible to wirte native Modules for Appcelerator:

3. Do you know a way to clean up a big Android App?
4. Do you know a way to clean up a big iOS App?

Thank you very much