Where can I download Samsung Smart Switch for PC?

FOR PC

To transfer your content using Smart Switch for PC, you will need 
1) A Samsung mobile device with Android™ OS version 4.3 or late 
2) An old device that meets one of the following requirements:

• A Samsung device with Android version 4.3 or later.
• Apple® iPhone® with iOS version 4.2.1 or later.

3) A Windows® platform with the following minimum requirements:

• Operating System: Windows XP® (Service Pack 2) or later.
• CPU: Pentium 4; 2.4 GHz or higher.
• Memory: 1GB or higher.
• Screen Resolution: 1024 x 768 (600), 32-bit or higher.
• Required Software: Windows Media Player version 11 or later.

FOR MAC

To transfer content using Smart Switch for Mac, you will need 
1) A Samsung mobile device with Android OS version 4.3 or later
2) An old device that meets one of the following requirements:

• A Samsung device with Android version 4.3 or later.
• Apple iPhone with iOS version 4.2.1 or later.

3) A Mac platform with the following minimum requirements:

• Operating System: Mac OS X® 10.6 or later.
• CPU: Intel Core 2 Duo 2.0 GHz or higher.
• Memory: 1GB or higher.
• Screen resolution: 1280 x 800FOR MOBILE APP.

FOR ANDROID DEVICES:

• Wireless transfers between Galaxy devices: Android 4.0 or higher.
• Wired transfer: Android 4.3 or higher, charger cable, and a USB OTG cable.
• Wireless transfers from a compatible Android device to a Galaxy device: Android 4.0 or higher (Mobile AP).

Blackberry devices:

• Wireless transfers: BlackBerry OS 7 or 10 (Mobile AP).
• Wired transfers: BlackBerry OS 7 or 10 for transfers via USB OTG cable.

iPhone devices:

• Wired transfer: iOS 5.0 or above, iOS device cable (lightning or 30 pin), and a USB OTG cable.
• iCloud transfers: iOS 4.2.1 or higher and Apple ID.
• iTunes transfers: Smart Switch PC/Mac software.