I'm obviously not going to upload valuable files that contains personal information. You shouldn't do that with any cloud storage service. But it's as real as it gets to getting 10 TB for free.And all this talk about the Chinese spying on the files, yet we have companies like the NSA doing their deed with DropBox and other cloud storage services in US.The app is useless, you can install it, log in, then delete it from your phone afterwards. I dug around it's location folder and found nothing. I did an anti-virus scan and it found nothing either.Also encrypting the files is a good idea.