Wait a second, you're telling me that an application has the ability to regulate is data is tethered at high or low speeds, rather than it being the carrier that regulates that in the first place? That's as insecure on their part as storing everyone's username and password of a website on the client rather than being verified by the server.
Also, I hate to be this guy but technically they are unlimited plans. You still get unlimited data, the word "unlimited" does not mean "unlimited at highest speeds", it only means "unlimited".
Also, I hate to be this guy but technically they are unlimited plans. You still get unlimited data, the word "unlimited" does not mean "unlimited at highest speeds", it only means "unlimited".