I am unable to hear the recordings unless I increase the volume to full, and even then I must put the speaker to my ear. I paired my Bluetooth headset to my iPhone and the app wont play through the headset. I upgraded to the paid version, but still no success. This app has potential, but has fallen short of any expectation I had. I am out a dollar, which sadly, is all this app developer seems to care about. I have learned my lesson and will never purchase any of their future offerings. Suggestions:
In application volume control.
Bluetooth Interface.
Scigod_1 about Microphone + Recording