$3,000 for a used iPhone? If he has TikTok, maybe.

For around $1,000, you can leave an Apple store with a brand new, hermetically sealed iPhone that’s been customized for you by a verified genius.

Or, for hundreds or even thousands of dollars more, you can buy a used phone with a cracked screen and dirt-filled speakers from someone on the Internet.

It all depends on what you like Tiktok.

When the video-sharing app stopped working in the United States on Saturday evening after the Supreme Court upheld a law that effectively banned the app, some users deleted the app from their phones. The next day, the app began working again when President Trump said he was planning an executive order to halt enforcement of the law. But, as of Thursday, Apple and Google, which had removed Tiktok from their app stores to comply with the law, had not made it available for download again.

Uncertainty over whether the app will return to app stores has left some people who never deleted the app seeing their phones as golden tickets, coveted by anyone missing a hit deleted the app.

It was not immediately clear how many people deleted Tiktok and whether it would return to app stores. But people like Piotr Gustab, 37, of Queens, see opportunity in uncertainty.

An information technology engineer, Mr. Gustab, listed his iPhone 15 Pro with TikTok uploaded on it for $3,000 on Facebook Marketplace. That’s about three times the cost of a brand new iPhone 16 Pro. As of Thursday evening, it had an offer for $1,200, still more than almost any brand new iPhone and almost twice as much as a refurbished iPhone 15 Pro without TikTok.