so, this is not monetised in any obvious way, since it's free and they claim that no data leaves your device.

so tell me then, why I can't find a link to a foss repo? what's the point in keeping it proprietary, if you make no money and get no data anyways?

in conclusion I must assume lies, or deception and some other kind of monetisation where the user is the product... why else would you hide the source...