You can cancel your Colorful+ subscription by following the steps below:

[Android]
1.) Open Google Play Store.
2.) Tap the Profile icon on the top right.
3.) Tap [Payment and Subscriptions] and select [Subscriptions].
4.) Select a subscription from the list that you'd like to cancel.
5.) Tap [Cancel Subscription].

[iOS]
1.) Open [Settings].
2.) Tap your user name, then select [Subscriptions].
3.) Select a subscription from the list that you'd like to cancel.
4.) Tap [Cancel Subscription].

*Please be aware that simply deleting the app will not cancel your subscriptions.
*Even if you unsubscribe, your current subscription will remain valid until its expiration date.
*Please note that if you do not unsubscribe two days prior to your subscription's renewal date, it will be automatically renewed.