As of early August 2021, we are that the app does not loading on the iOS 15 beta. We are currently looking into a resolution to maintain functionality in advance of the general availability release of iOS 15. In the meantime, here are a few workarounds/solutions to consider to continue accessing Wondery+ on your device:
1. Downgrade to iOS 14.
2. Use our website. We recently added full Wondery+ playback capability to it on mobile web.
3. Try our private RSS feed option, which allows you to use your Wondery+ subscription in a variety of free third-party apps. More info on this option is here.
We hope to have this issue resolved quickly, thanks for your patience and understanding.