jio4gvoice

i have apple iPad Pro 10.5 (WiFi only) having IOS 11 (latest). i want connect jio4gvoice using jiofi device. but when i start jio4gvoice app it is not able to detect WiFi and it gives error like "please insert sim card".

all android device have jio4gvoice app facility, all iPhone have jio4gvoice facility. then why this app not working in iPad. is there any alternative of jio4gvoice app for iPad? apple should solve this app issue as soon as possible. because this app working fine in all devices except iPad.

please help me to solve this issue.