There used to be a similar free option for the iPhone in the form of Slidejoy, but now it seems as though they are no longer offering such a program to those who download. Of course, if you're currently using that free app and you've got an iPhone 4, then you're probably not going to want to switch over to a new program. So at this point, Slidejoy would probably replace it in terms of being available to the public, so if you're using that free one, then Slidejoy might replace it.
Currently, Slidejoy isn't available to anyone in the US because it's designed to work only with phones running on Android. The developers of the app, however, have stated that they will make a universal version available in the future. Since it does have its limitations, it might be a good idea to read all of the information about Slidejoy before downloading it. It's also a good idea to make sure that you're using a phone that's capable of running the software.
Although Slidejoy may be available to download from the internet, you're going to need a specific download for your handset. Most of them are compatible with the likes of iPhone, HTC Evo, Blackberry Curve, and many other Android smartphones. The download requires a USB cable, which means you need to make sure that you're carrying around one on your person if you intend to download it from your computer. If you don't have one, then you can get a USB adapter for free from several places on the internet. This way, you won't have to worry about whether or not the adapter will fit the device you're planning on downloading it onto. If you do have a USB adapter, then you should be fine.
