Sundance Power Systems is a free app available for anyone to download and is used for those that want to communicate with Sundance Power Systems. It is as simple as downloading the App and register as a user. Once registered, you can begin communicating right away. We will reach out to you via push notifications and in-app messaging to improve your overall buying experience. Once you purchase your new Solar from Sundance Power Systems, feel free to write a review. We appreciate your business.