IOS 9 Tips: How to reload the applications, clearing the cache from the old file
To speed up the access to certain applications, iOS saves the data downloaded from the internet within the cache memory. Often, however, these data may be obsolete, and the cache can inhibit a proper refresh and display the new content.
For this reason, for the native applications of the system based on a database downloaded from the internet, Apple has provided a bit of a trick to force the refresh, deleting everything that is in the memory cache then re-download it again.
Makeup can be applied in applications, AppStore, iTunes Store, iBooks Store, and Watch, and is to perform a 10-tap consecutive on the tab below of the applications. You will immediately notice that the section will be reloaded from scratch, clearing the cache from the old file.