Do you need wifi modem to run a iPad?

No, you don't necessarily need a Wi-Fi modem to run an ipad. An ipad can function using cellular data if it has a cellular model and a data plan. Additionally, you can use it offline for many tasks, such as viewing downloaded content or using apps that don’t require an internet connection. However, for browsing the web or streaming, you'll need a Wi-Fi connection or cellular data.