Hello. Dear. The best software to use is of course the Android market. Android Market 4.0 is now fully functional. Every time you open the program, it will automatically scan the software of this machine. You will be prompted as soon as there is updatable software. Not only can you update the software you installed. You can also update some software of the system. There are also previous versions available for download. Let you have no worries. It also has software management functions. Automatically search all APK software of this machine. With an icon. So you don't have to worry about deleting the wrong package you want to save. It is worth noting that every time this software is opened, it will be networked to search your local software. So it takes a little traffic. It is best to use the update under the WIFI network. If your traffic is sufficient, you can ignore this reminder. Dear. Your satisfaction is the purpose of my answering questions. I hope to help you. Your adoption is my greatest support and encouragement. I hope to adopt it. thank you