The CTA cards are designed to appear in the Spotify app whenever there is an ad read on an episode, with visuals and text that can be customised by advertisers. The cards are interactive as they will contain links related to the ad, and will remain in the relevant episode page or show page for up to seven days, just in case you want to revisit the card. This method is certainly more convenient than having to mentally note down voucher codes or apps to download, which can now be done with a simple tap. That being said, these ads will appear for all Spotify users listening to podcasts — even paid subscribers who specifically pay to avoid them. Since there is no avoiding ad reads in podcasts anyway, at least this method lets you quickly check out any interesting promotions. Spotify claims that CTA cards lead to twice as many site visits as unclickable podcast ads. However, it is only launching in the US for now and only involves Spotify Original and Exclusive podcasts. (Source: Spotify [1][2])