You can manage your subscription from your App store account.

iOS:

You can review and cancel any of your subscriptions (including Recolor) from your device Settings > iTunes & App Stores > Your Apple ID > View Apple ID > Subscriptions. Find Recolor there and choose "Cancel Subscription".

Android:

You can cancel your subscription through Google Play store by following these steps:

- On your Android phone or tablet, open the Google Play Store.

- Check if you’re signed in to the correct Google Account.

- Tap Menu -> Subscriptions.

- Select Recolor - Coloring Book subscription.

- Tap Cancel subscription.

- Follow the instructions.

Please note that uninstalling the app will not cancel your subscription.