You'll need an iPad for Otter Director HD. Running IOS 12.0 or later.
You will need an iPhone for Otter Camera. Running iOS 12.0 or later.
Each of your devices will need internet access to run either Otter Director or Otter Camera. Both work over WiFi and Cellular Networks.
For Otter Director HD the internet connection should be at least 15Mbps download. Running a speed test is recommended before starting.
For Otter Camera HD the internet connection should be at least 3Mbps upload. Running a speed test is recommended before starting.
Install Otter Director HD on your iPad. Then follow the instructions found in the Quick Start Guide here