You can proceed to cancel your subscription in two different ways:
In case you have added your credit/debit card:
Enter bookme directly from your app, click on your profile avatar in the upper left, and the following screen will appear.
Click the 'Edit account' button and it will take you to the next screen.
From here you can see the details of your account, to delete click on the red button "Delete account" Before proceeding you will be asked a second time to confirm that you want to delete your account since this will delete all your data.
If you have an account with Apple:
Go directly to the settings of your phone.
Click on your name.
Click on Subscriptions.
Click on the subscription you want to cancel in this case bookme.
Click on Cancel Subscription, you can find it by sliding down.
If you can't find the unsubscribe button or you see an expiration message in red text, your subscription is already canceled.