Not entirely malicious, but not at all trustworthy! X Research source If you sign in to an 'Instagram viewer' with your account, you'll only see the content that's available to your Instagram account.
Since 2018, the Instagram API (Application Programming Interface) only allows third parties to display content from an Instagram user's own account.There's no conceivable way for any app or website to show you private Instagram posts. While there are many websites that claim you can view private Instagram accounts by installing certain apps, none of these apps work.
Beware of apps that claim they can get around Instagram privacy settings.
