Transferring recordings – iTalk Recorder Review

I’ve used this product happily for several years. But today, after recording a 54 minute interview the app is saying I can’t transfer without upgrading to premium. However, searching the Apple web store I can’t find any ITalk premium. And when I look at the website it says the premium app is “out of stock.” First of all how is an app out of stock? Secondly, how can I transfer this 54 minute interview?
Review by robotclaw on iTalk Recorder.