A 30 day trial period with user engagement at the end of trial asking them if they need additional time to evaluate will work better. Offer them 15 day extensio

A 30 day trial period with user engagement at the end of trial asking them if they need additional time to evaluate will work better. Offer them 15 day extension if they need. There are two advantages to this approach: 1. engage in conversation with user asking for feedback and understand their needs. 2. treat them special with an offer to extend trial, earning their respect for personal attention and better chances of conversion.