This video shows you how to permanently clear Snapchat history on iPhone/iPad step by step in case of privacy leak. Here goes the text guide:https://www.tenorshare.com/cleanup-iphone/how-to-delete-snapchat-history-on-iphone.html
1. Tap Gear/Settings icon at the top corner of Profile.
2. In the Account Actions screen, tap on the option labeled Clear Conversions.
3. Select the X in front of a conversion to delete it or tap on clear All at the top of the screen.