Setting up Random Interval Bells is simple. Follow these steps:
Tap the Timer tab (middle icon at the bottom of the screen).
Tap Interval Bells.
Tap the three dots (⋯) in the upper corner.
Toggle Random on.
Choose your preferred bell sound, number of bells, and number of strikes.
Tap Save, then start your session.
Note: Random bells cannot be used when the session Duration is set to No Limit (∞).