No volume
Response from developer
Many users (who've contacted me directly) traced this issue to the hardware sound switch (top left) being off.
Great app
Unable to use
Response from developer
A common cause of no sound with an iPhone is the audio hardware switch (top left) being off. Have a look at this video: https://youtu.be/M2Gl_fiLjeA. No sound could also be related to your device "Sound and Haptics" settings. If "Change with Buttons" is checked, volume buttons will modify ringer volume rather than media volume (which controls beep sounds). To fix, start the app (dummy run), then immediately use the volume up button (the media volume bar should appear). Or, uncheck "Change with Buttons".
