Open Safari on your iPhone and Open official Tongbu website from here (http://tui.tongbu.com/m/index.htm) & Let website load completely.(Note:-Don’t use any other browser use Safari for easy download)
Tap on button with Apple Logo and some chinese text as shown in image. As soon as you tap, one box will popup asking you to install that app.Tap on install and wait until app downloads and install.
In this way you can easily download tongbu app to get paid apps for free without jailbreak on iPhone.
Open Tongbu App and tap on Search icon in bottom-center of window and it will show you multiple icons tap on second icon in first row which is search icon. See image up for better understanding.
After doing that, search for app which you want to download. Here I want to download Facetune so I will search Facetune.
After selecting desired app 4 download,You will see App information window same as we see in AppStore but in Chinese language.In that window tap on green button as shown in image & will begin download
After download gets complete, one box will popup which will ask you to install your app. Tap on install and it will install your paid app. After that you can see that app on your home screen.
The creator of this guide has not included tools