Looks like there is a pretty good deal on @dadederk’s book right now - £13 for the ebook. International prices are usually similarly discounted.

https://link.springer.com/book/10.1007/978-1-4842-5308-3

Developing Accessible iOS Apps

This book will show you how easy it is to use Apple's tools for creating accessible apps. Developers aiming for a global audience need to cover a series of requisites for their apps, and one of them is to make them inclusive and accessible for anyone to use.

SpringerLink
@RobW but what about this one, looks also very interesting https://link.springer.com/book/10.1007/978-1-4842-5814-9
Developing Inclusive Mobile Apps

To combat the issue of online exclusion, this book covers considerations mobile developers, or anyone creating mobile experiences, can use to make mobile work better for those with disabilities—mental or physical—and how to create a better experience for everyone.

SpringerLink
@Gray_Wind A poor imitation imo.
@RobW didn’t stop me from buying both of them
@Gray_Wind Thank you!