How to cancel RoboKiller subscription?

Hi glessie49,

You can cancel your subscription from a number of devices.

1. Open the Settings app.
2. Tap your name.
3. Tap Subscriptions.
4. 
5. 
   
6. Tap the subscription.
7. Tap Cancel Subscription. You might need to scroll down to find the Cancel Subscription button. If there is no Cancel button, the subscription is already canceled.

You can find these and additional steps in If you want to cancel a subscription from Apple.

Regards.

Cancel robokiller