Calculates information about a Subnet based on the ip address and netmask you provide it. Also includes hexadecimal and binary conversion.
Free or Paid
Apple Watch Support
Fully accessible with VoiceOver. The only thing unlabeled is the information button at the very bottom which you don't need and doesn't provide any real purpose besides displaying an ad of the "pro" version.
VoiceOver reads all page elements.
All buttons are clearly labeled.
The app is fully accessible with VoiceOver and is easy to navigate and use.