1. Collect customer feedback: Collect feedback from customers through surveys, reviews, and social media comments, to understand their experience with the product and identify areas for improvement.
2. Provide customer support: Provide timely and effective customer support through multiple channels such as email, chat, and phone, to address any issues or concerns customers may have.
3. Offer product updates: Regularly release product updates that improve user experience, add new features, and address issues reported by customers.
4. Engage with customers on social media: Stay active on social media platforms such as Twitter, Facebook, and LinkedIn, to engage with customers, respond to comments and reviews, and share product updates.
5. Offer loyalty rewards: Offer loyalty rewards and incentives to customers who use the product regularly, such as referral bonuses, discounts, or access to exclusive content or events.
6. Provide educational resources: Provide educational resources such as blog posts, webinars, and tutorials, to help customers understand how to use the product effectively and stay informed about the latest cryptocurrency trends and news.
7. Build a community: Build a community around the product, such as a forum, a social media group, or a Discord channel, where users can share tips, ask questions, and connect with other crypto enthusiasts.
8. Host events: Host events such as meetups, webinars, and workshops, to provide opportunities for customers to learn more about the product, meet the team, and connect with other users.

By implementing this post-launch engagement plan, you can build long-lasting relationships with your customers, increase customer satisfaction and retention, and drive product growth and adoption.