I have been using Jio4GVoice app for using the Jio Call service and messaging service. I started using it because of it free data and call services but particularly this app does not work smoothly because many times I have to manually open the app for using the services. Also the app takes too much time to load the messages and most of the time the buttons are disabled, where I have to wait for some time because of its loading time. Overall I do not find it useful for daily use.