how about collecting a credit card, and advertising that you won't charge them for a month?
this way they get 1 month free, and you get to add customers into the funnel.
this way they get 1 month free, and you get to add customers into the funnel.
"[A] fixed-length trial discourages users from using your product - why invest time & effort in something that will disappear in 30 days[?]"
I've been running a 30 day trial with my app since 2003, we've grown double digits every year.