LightRocket is a browser based application which means it will run on pretty much any modern internet browser (Chrome, FireFox, Safari and IE).
So if you can browse the internet on your computer you can use LightRocket with no need to download and install any additional software. This also means the system will run happily on Macs and PCs too.
Of course the system itself has to be installed on a server somewhere but we'll take care of that for you (hosting and storage are integrated parts of our plans) and ensure your archive is protected from hackers.