Dedicated designed for Energy Hub system, this APP aims to help you: Learning working status of the Energy Hub system devices in real time Records the last 12 hours of battery SOC%, real-time battery voltage and current data, giving you full information about the battery's operation Appropriate charging according to inverter, generator type and other necessary settings All in all, this APP will be a helpful tool during the usage of TBB's Energy Hub system. Always enjoy your time with TBB's Energy Hub or other products.