We have been looking into developing an application for iOS that will allow the phone to connect to a sensor through a serial connection. The purpose is to change the settings of the sensor using the phone. However, I have been made aware that we would be unable to develop such an app unless we enroll in the MFI program. We considered alternatives such as using Redpark’s cables and their SDKs, but according to them publishing would not be possible. They mentioned we could develop the app and publish through Apple Business Manager to distribute to corporate customers, but as far as I could tell, this requires the customer to be enrolled in the Apple Business Manager program as well. What we wish to do is publish publicly in both iOS and Android, but for iOS there doesn’t seem to be support for serial communication, and I am assuming appropriate APIs/SDKs are available only through the MFI program. I would like to know what options we have and how we can explore them. Thank you very much for your time.