Canceling your Pro subscription is a piece of cake. All you need to do is just turn auto-renew off. The way how to do it depends on your payment method
Go to the “Subscriptions” section of your Apple ID in iTunes or the App Store and unsubscribe from Singularity App manually.
Log in to your account on the Google Play Store and check if you have a recurring payment for Singularity App. If you have it, click to cancel.
No panic! Just go to online service center, write us, and we will cancel the subscription very soon.
If you firmly decided to cancel the subscription, please email us. We would be happy to get your feedback which can help us make our application more convenient for your tasks :)