Kanye West gave Tidal a big boost this weekend by releasing his latest album “The Life of Pablo” exclusively on the Jay Z-owned streaming service. And after first promising a limited exclusive, West doubled down on Tidal Monday, announcing that the album won’t be available anywhere else in the foreseeable future.

West released his long-awaited seventh studio album on Tidal Sunday, telling his fans on Twitter: “I decided not to sell my album for another week. Please subscribe to Tidal.”

Just one day later, West struck a different tone, announcing on Twitter that the album “will never ever be on Apple.” And it looks like we won’t be seeing it anywhere else either: “And it will never be for sale… You can only get it on Tidal.”

All of this promotion seems to have had a significant impact on Tidal’s usage: The service’s iOS became the most popular free app on Apple’s App Store this weekend, handily beating competitors like Pandora and Spotify.

This isn’t the first high-profile exclusive for Tidal. Last week, West streamed his fashion show and album premiere exclusively on the service. And last month, Rihanna gave Tidal a short exclusive window for the release of her latest album Anti, which prompted one million sign-ups for the service in half a day.