Thanks to everyone for the warm response.

I've made some updates as a result to make the app more accessible following feedback from jareds, with improved support for different text sizes, voiceover, and keyboard navigation.

I've also added wider coverage for dark sky spots, aurora alerts, and the nearest clear sky following the reply from robotmay.

Thank you all so much again, and please let me know if you'd like to see any more features!

Also a big shout out to Dan the moderator - thank you for all your help!