Yes. You can enable/disable notifications on a per Circle basis. Follow these steps:

• Tap on the Circle for which you want to change the settings, then tap the ⓘ icon in the upper right-hand corner.

• Tap Notifications.

• Tap Enable or Disable based on the change you wish to make.

For information on enabling/disabling notifications for the entire PhotoCircle app, please refer to these FAQs:

• iOS
• Android