Downgrade users who don't upgrade from your free trial to a forever free plan with limited features to keep them engaged and nurture them.
If people sign up for your free trial but don't upgrade, you can automatically downgrade them to a forever free plan with a limited features set. This allows you to stay in touch with users that haven't converted and keep them engaged with your product. The goal is to create new conversion and upsell opportunities later on. It's important to remember that free users can become the biggest advocates for your product and contribute to acquiring paying customers, sometimes even more than paying users.