Okay, so this app isn't necessarily new, but it IS a working hidden tethering app that you can currently buy in the app store. It's called iRinger. I saw videos about it on Youtube but there were mixed reactions on how it worked. Some people said the app crashed once you got to the tethering screen and that it's a scam, but I figured it's only $1.99 so I could give it a try. The thing that made me the most wary is that it's been in the app store since February and it hasn't been removed yet. It's a little bit of a hassle to get working but so far it's been working fine. Speeds are decent for what I need. Here's the guide to setting it up. I couldn't get the HTML proxy to work but the SOCKS proxy works great. The app is $1.99 which isn't bad at all compared to $30 a year from Tethering.com. However, there are a few downsides. Your language needs to be set to French in order for the app to work. I don't know why this is so and I don't know why the developers still haven't fixed it, but it's just something you've gotta deal with. You can go back and change your language to English once you've activated the tethering on the iPhone, but that's pretty useless because another issue with the app is that it must stay open in order to keep the tether running... as in, you can't even leave it running in the background. It must stay on your screen. I don't tether that often, only when I can't get wifi which is rarely, but it is a feature I like to have handy. I currently use PdaNet which is much easier but also requires you to be jailbroken. I'm going to be having my iPhone 5 replaced soon and the odds aren't likely that I'll get a phone with 6.1.2. Can anyone test this with iOS 7?