Basically we start from here :D, open the App Store :)
Go to the Search Tab and Search "Apps Gone Free" :))
There is it!
Now let's download it
Now open it :)
Now as you can see it daily contains 8-12 free for limited time apps, and a description for some of the apps at the top(intro). :DD
Now tap on the apps you want, you get in-app photos, description, and almost everything that the app store shows, you can even share, tap free to go to the app's download page in the app store :DD
The creator of this guide has not included tools