Best advice I've heard on fixed-length trials:
"[A] fixed-length trial discourages users from using your product - why invest time & effort in something that will disappear in 30 days[?]"
"[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.