Skull One said:No, it is not undetectable. Simply put, they aren't running the proper packet capturing to detect it as of today. When they do, you will find out just how detectable it is.
Okay...
I know when you use the tethering option on a iPhone that has it enabled by the carrier...there is a cellular usage statistic for tethering specifically. When you tether..the amount of data used is placed in the tethering usage stat.
When you use TetherMe...the usage stats under the tethering tab will not show..it shows as regular cellular data.
That's basically what I meant. It doesn't show that the tethered data under the proper stats...which makes it easily undetectable.
I don't doubt for a second that if they actually really wanted to find out they could...but they are not...so I think it's safe to say that TetherMe is better option...opposed to a 3rd party application.