The typical case of forced continuity: free for one month then lapses into paid service. Also, (unsure if this is a dark pattern) the entire image shown here is the button to be clicked, not just the orange CTA button.
Audible
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Gray et al.
August 1, 2017
An example of the "hard to cancel" dark pattern.
Audible
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Deceptive Design
August 23, 2022