Please be aware that deleted accounts can not be recovered.
 

<How to delete an account>

iOS 

  1. Open your [Profile] page and tap [Settings] .
  2. Tap [My account] or  [Others (Terms, etc.)]
  3. Tap [Delete my account].

Android

  1. Open your [Profile] page and tap [Settings] .
  2. Tap [Others (Terms, etc.)]
  3. Tap [Delete my account].

Web

  1. Click [Settings] .
  2. Click [My account]
  3. Click [Delete my account].
     
Uninstalling the app from your device will not delete your account.
Premium member need to cancel your subscription before deleting account.  Otherwise charges will continue.