https://airtribune.com/news

We are happy to announce that Airtribune iOS app is available in
Appstore. Link
https://itunes.apple.com/us/app/airtribune/id869285811. The first version is
for competition live tracking only. Participants of competitions will enjoy
Airtribune complete solution for events, application allows to be live tracked
during the tasks, to report back and chat with retrieve and send their photos to
competition day blog.

No Apple Appstore button on their web site because the iOS version
is restricted to competition (which is about all we would use it for any way).