30 days don’t convert people you need to be more clever to get your subscribers to become active users, try to in the meantime of their conversion to teach them how to use your product/service. Break down your 30 days trial into smaller sections and determine what do you expect of people during these days so they stick around and eventually pay. See if your target customers learn more by doing or by watching. On-board with a video of s step by step guide of what you have to offer.
Limit your free trial to 7 days, with a chance to earn more free days if they follow the guide, this will likely get them more involve and more likely to become paying customers. Use these tips to successfully apply this hack.