虽然苹果很早就就加入了「文件共享」功能，但是仍然要通过 iTunes 才能同步。然而几乎所有果迷都知道通过 iTunes 同步文件是出了名的慢（尤其是在 Windows 平台），并且非常占用电脑资源，程序本身也非常臃肿。很多时候我们不得不考虑第三方的同步工具，下面要给大家推荐的 iExplorer（不是 Internet Explorer 浏览器…） 就是非常优秀的一个免 iTunes 同步文件的工具，并且不需要越狱。
iExplorer 是一款可以运行在 Mac 和 Windows 平台上的免费软件，通过这款软件可以非常轻松的访问到 iPhone/iPad 上的应用程序目录、照片目录，比如你 iPhone 照片库中的照片都可以直接在 iExplorer 的界面中访问到，而通过其他第三方程序创建的内容（比如使用 Camera+ 拍摄的照片）也基本都可以从这个 iExplorer 中直接在电脑上读取。当然这些都不是最重要的，因为 iExplorer 最实用的功能就是往设备上同步文件。
要使用这款软件，首先我们得知道自己的设备上有哪些支持「文件共享」功能，方法非常简单，连接上设备并启动 iTunes，然后选中设备，并点击右侧主界面上的「应用程序」标签，接着往下拉你就可以看到支持「文件共享」功能的应用，也就是说只有往这些应用中直接通过 iExplorer 存放文件才有效。比如，笔者的 iPad 上可以直接往“迅雷看看HD”中存放 RMVB 或者 MKV 格式的电影来播放（迅雷看看 HD 支持 rmvb、3gp、mkv、mp4、flv、avi、wmv、rm 等格式），也可以往“QQ阅读HD”中同步各种格式的电子书（支持 HTML、ePub、txt、ppt、xls、doc、pdf 等等）。这里我们直接以往“迅雷看看HD中”同步视频为例介绍：
- 将 iPad 连接到电脑，并启动 iExplorer，你会发现在 iExplorer 中已经识别出了你的 iPad，展开之后会发现有两个文件夹：Apps 和 Media；
- 展开 Apps 文件夹，然后找到“迅雷看看HD”文件夹，将其展开之后，你会看到一个名为 Documents 的文件夹，这个文件夹就是可以直接拖放文件同步的；
- 将要同步的视频，直接拖到这个 Documents 文件夹中，同步完成。其他支持「文件共享」的应用，也都是将文件同步到这个 Documents 文件夹中。
iExplorer lets you easily transfer music, movies and playlists from any iPhone, iPod or iPad to your computer and iTunes. With its gorgeous user interface, you can view and save your photos, SMS, voicemail, address book contacts and even call histories. iExplorer can also seamlessly mount your iPhone or iPad like a flash drive in Mac's Finder or Windows Explorer.
Intelligently Transfer Music
With iExplorer, getting music and other media from an iPhone, iPod or iPad to your Mac or PC couldn't be any easier. You can search for particular tracks, listen to them directly from your device and even drag and drop them to your computer. With the touch of a button you can copy those songs and even rebuild playlists directly from your device into iTunes.
Avoid Duplicates, save Meta-Data
If your music collection is scattered across multiple computers or devices; iExplorer is the tool that will help you finally unify your music library. With iTunes duplicate detection, iExplorer intelligently skips copying dupes from your device to your computer tracks so you can easily recover playlists or everything from your dusty old iPod with having to worry about swapping your computer with thousands of redundant tracks. And did we mention that when you do import music into iTunes, iExplorer saves your meta-data, such as play counts, ratings and other info?
Auto Transfer All Music & Playlists in One Step
Whether you're upgrading to a new, or whether your old one crashed and lost all its data, or your merging all your music from various iPods and iPhones on to one Mac or PC, iExplorer is the tool for the job. iExplorer lets you easily rebuild and recover your entire iTunes music collection from your iPod, iPhone or iPad with its "Auto Transfer" button that knows which tracks are missing from iTunes. With just one click iExplorer can put everything (music, ringtones, playlists & all), back into place.
Mount iPhone & iPad to Mac's Finder & Windows Explorer
iExplorer's disk mount capabilities allow you to use your iPhone, iPod or iPad like a flash drive. Want to view your iPhone's photos in Finder or Windows Explorer like you would from any other digital camera? Want to get file system access to data files contained within an app on your device? How about backing up or moving your app's high scores from one device to another? Want to save files directly from your favorite text or image editor to your iPad so you can take them to go? What about instantly seeing all your music listed out with title and artist in the track file names?
Not only does iExplorer 3 do all this, but it does it beautifully. You can easily make specific directories within your iOS accessible, or you can even mount the entire device from its root. With iExplorer 3's auto-mounting features, you can even seamlessly enable your iPhone or iPad to automatically appear in Finder or Windows Explorer every time you turn on the computer.
View & Save Voicemails, Address Book Contacts, Calendar, Reminders, Notes and More...
We've crafted seven magnificent utilities into iExplorer to allow you to browse, preview, save and export the most important information contained in the most important databases on your iPhones and iPads.
Within these utilities you can browse, recover, backup, export and save your data. View your appointments, events or your call history. Listen to your iPhone's voicemail messages and drag or export them to a folder on your computer. Everything is always just a couple of clicks away. Be in charge of your content.
SMS & iMessages
In the last few years we've seen SMSs and iMessages grow in popularity. These messages are replacing phone calls, voicemails and even emails. We understand that your SMSs and iMessages can be priceless to you and that's why we've spent so much time developing the best SMS tools to help you view, export and archive your messages and attachments. The iExplorer SMS client looks and works great with group messages and images too.
Photo & Video Access
Photos and Videos are stored on your iPhone and iPods in numerous encoded formats and various databases. Whether you snapped a pic using the camera on your iPhone, or if synced saved images from your computer to an iPod Classic, or if have videos and images saved in the iCloud - iExplorer is the best app to view and export these images.
Movies & TV Shows
iExplorer not only works great with the videos that you created, but it also works great with the movies, TV shows and other media that you've downloaded to the device or purchased in iTunes.
Maybe the only thing more impressive than the variety of photos and videos that iExplorer supports, is its carefully designed thumbnails, full resolution previews and export options offered.
With iExplorer 3, you can access more files and folders without modifying (jailbreaking) your device. Want to access the files and folders of your device's apps? Done. How about browsing through your backup data? Check. What about the media folders containing your photos and iTunes purchases? We've got that too. What about files in apps that are synced to iCloud? Yes!*
iExplorer also works great if your iPhone is Jailbroken. With AFC2 access, the app can read and write to the iOS device's real root. (Experts only tho please!).
*iCloud access is for Mac only.
Requires OS X 10.6+
and iTunes 10 or later
Supports all iPhones, iPods and iPads ever created.