TikTok collects the story what you watch so that it can use it to make suggestions and recommendations based on what it thinks you like to watch; but it also allows you to delete your browsing history on the platform.
TikTok also offers users access to watch history items so you can actually see everything you’ve watched in the past seven days.
If you’re worried about your TikTok collection of information about what you watch, or you just want to change the suggestions and recommendations you get, here’s how to delete your TikTok watch history.
How to delete TikTok watch history?
Launch the TikTok app on your iPhone or Android phone. By the way, this will also work on the TikTok app for your tablet.
Tap your “passport‘ icon in the lower right corner.
Tap the hamburger icon (☰) in the upper right corner (three lines button)
Select ‘Settings and Privacy‘
Click “Comment & View History”
touch’View History‘

Tap Select
Then select all the records you want to delete.
To select all, select the radio button next to Select All View History
Then click the Delete button and confirm that you want to delete the entire TikTok view history.
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