The availability of LTE data on new iOS devices is a great thing. In many ways, it's revolutionized whats possible on the devices. I'd never go back to anything that doesn't have LTE.

That said, I'd like a little more control over the availability of LTE data. Apple has seen fit to provide the user with an On/Off switch for LTE Data in Settings > General > Cellular > Enable LTE. What I'd like is to decide availability on an app basis. Instead of a simple switch, the 'Enable LTE' should behave just like the 'Roaming' setting below it. Pressing the arrow on the 'Enable LTE' button would lead to a submenu with additional refinement options.

There should be a simple On/Off switch at the top. When 'Off' is selected, the other options would be greyed out. When 'On' is selected, an option to select by app would be enabled. Switching this option 'On' would provide a list all apps that use data. By default, they would all be switched 'On'. The user could then go through and turn off LTE for any apps they choose.

This option would be helpful in many instances. Many apps take into account the data connection when deciding how to serve up data to the user. Video is a prime example. If a user has an LTE connection, they will be served up HD video content. If LTE is turned off, low definition content will be served. In many cases, I'd be happy to have the reduced quality to conserve data.

More and more people are effectively operating without unlimited data plans. This setting would give more control to the user to decide how they burn through the data available to them.