How to cancel a reoccurring charge?

See the following Apple articles:

How to cancel a subscription from Apple

If you want to cancel a subscription from Apple – Apple Support (UK)

If you want to cancel a subscription from Apple

If you want to cancel a subscription from Apple - Apple Support

Request a refund for apps or content that you bought from Apple.

Request a refund for apps or content you've bought from Apple – Apple Support (UK)

If you have requested a refund, you must wait until Apple has approved. Then you will receive a message from Apple.

Refunds are not guaranteed. For more information, see the Terms & Conditions.

If you mean this app, the app is free, but they have In-App Purchases

1. Premium Scanner & PDF editor
2. $9.99Premium
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8. $4.99SPECIAL OFFER - 75% OFF
9. $19.99Premium
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11. $9.99

Read:

UNLIMITED ACCESS MEMBERSHIP SUBSCRIPTION

– You can subscribe to get unlimited access to all app features

– Subscriptions are billed weekly, monthly, quarterly, or annually at the rate based on the subscription plan

– Payment will be charged to iTunes Account at confirmation of purchase

– Subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period

– Account will be charged for renewal within 24 hours prior to the end of the current period. The cost depends on the selected plan

– Subscriptions may be managed by the user, and auto-renewal may be turned off by going to the user's Account Settings after purchase

– Any unused portion of the free trial will be forfeited when the user purchases a subscription

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