The app quits as soon as I touch the microphone button - using iPhone 7 Plus worked fine for 4 months previously

I am using the app on an iPhone 7. It has been working fine for four months since I installed the app. As of today the app quits as soon as I click the microphone button.  The microphone is enabled in settings for Rocket French. Is there a solution to this issue?  

I am having the exact same problem. I would also add that in all my many months in Rocket Languages, I have never experience as many tech problems as we have been having recently.  Time to get your act together, it's getting tiresome.

With todays update, this problem ended for me, thank you.
 

I am still having the same problem with an iphone 6. The app continually crashes when doing play it.