In reply to mike8331:
Hi Mike (and others)
Apologies for not spotting this although I think you may have already been in contact with Stephen directly. If not (and for reference) I suspect this is the problem of iOS 9 and an old phone. Best to send an email to support [at] rockfax.com and tell us what phone you are using (iPhone 4, 5 6, etc.) and what iOS it is running.
We are releasing a new version soon which should make it work with iOS 9 again and hence older iPhones. This will also be the update required to run properly on iOS 11 which is released next week I think.
Alan
Post edited at 13:01