HashiCorp Vault is a powerful and flexible secrets manager, but its complexity can be daunting. In contrast, Doppler offers a more streamlined approach to secrets management, with features such as environment variable-based access, customizable dashboards, and multi-cloud integration. While Vault excels in certain areas, such as key-value store functionality, Doppler's focus on developer productivity and ease of use makes it an attractive alternative for many organizations. The choice between the two ultimately depends on the specific needs and requirements of each organization, but Doppler appears to be gaining traction among companies looking for a more accessible and user-friendly secrets management solution.