Curio goes against the traditional smooth onboarding trend and displays a paywall as the very first interaction with users. If you don't pay attention, you could think that there is no free version. However, you can select "Want a preview? Take a look" to access the free version and enjoy 10 stories for free. The psychological rationale behind is interesting: the user feels lucky to get into a premium product and are aware that there is no way to use Curio in freemium mode.
Curio is an audio journalism app. They curate articles from the world’s top publications, including The Wall Street Journal, The Washington Post, FT, The Guardian and many more, and turn them into audio you can listen to.