For YEARS I've used this app multi times throughout the day to calculate my carbs & insulin etc, had no problems ever with the app UNTIL NOW! There was NEVER any SOUNDS coming from the app thankfully, BUT last update made the app have CLICKING noise that CAN'T BE TURNED OFF! It is very aggravating & distracting when using late at night trying not to disturb others within earshot. Take away the clicking noise & I'm not turning down the volume on the phone itself because it's there for alarms!