Is a mobile hotspot free?

Yes, mobile hotspot is free because all devices which are connected to hotspot are using mobile data from the device which serves hotspot. But be careful if you have created a hotspot on your mobile phone check mobile data expenses from your mobile provider. Most often mobile providers already have included mobile data usage in a monthly payment so you can safely create a hotspot and serve internet to your friends. But in some cases, you can¬†overspend mobile data usage so if you don’t know what data you already have in your monthly payment there is good practice to call your mobile provider and check.