Jazz Balance Saver is a service offered by Jazz that allows users to save their remaining balance for future use. With this service, you can save a part of your balance, and it can be used for data, calls, or SMS when you run out of credits. This feature helps users avoid losing their unused balance and ensures they have sufficient credits when needed. You can activate or deactivate the service via a simple code, and it provides a convenient way to manage your balance efficiently.