Their screenshot shows an "autorenew" enabled on a $0 free trial with zero information on how much it will cost after the free trial is up.
You shouldn't allow people to sign up to "autorenew" at the end of their free trial period without clearly displaying the price that will apply when the trial ends.
It looks like the trial dataset in this case is simply a truncated subset of the full dataset (only San Francisco zip code boundaries). It would likely remain free forever under this model of "trial".
You shouldn't allow people to sign up to "autorenew" at the end of their free trial period without clearly displaying the price that will apply when the trial ends.