Cleaner guru stop subscription
How do I cancel the app cleaner guru?
iPhone 11 Pro, iOS 17
For subscriptions started using an in-app purchase then it is easy, since Apple manages the subscription.
View or cancel app subscriptions on iPhone - Apple Support
If you don't see the subscription in the link above to cancel it, then the subscription was made directly with the company. This is common when clicking a link on Facebook or other Social Media app and can also be done from a website advertisement. This would have directed you to their web page and you chose the Free Trial option that authorized them to bill you as a subscription service if it was not cancelled. Here is a link to their help page:
https://cleanguru.helpscoutdocs.com/article/226-cancel-subscription