Dark Pattern

A user interface design that intentionally tricks or manipulates the user into taking an action they would not otherwise take. In the context of subscriptions and upselling, common dark patterns include hiding the cancellation button, requiring a phone call to cancel a subscription that was initiated online, pre‑checking boxes for add‑on purchases, and using confusing language to steer users toward higher‑cost options. Dark patterns can boost short‑term conversion but damage trust, generate regulatory exposure, and increase long‑term churn as customers feel deceived. A growing body of consumer protection regulation explicitly bans certain dark patterns, requiring cancellation mechanisms to be as simple as sign‑up mechanisms.

Example: A subscription service that requires users to navigate six screens and call a phone number during business hours to cancel, when sign‑up took one click, is employing a dark pattern.