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We run an app that provides services by linking wireless hardware products through Wi-Fi. Currently, in the process of registering a device, users are inevitably providing a bad experience of manipulating the Wi-Fi part in app settings, so after reviewing the case of operating this method on iOS, I learned that it is WAC and MFi. It is difficult to find detailed information, so I ask you the following questions. Are there separate WAC license costs and MFi certification costs? Is the service possible only after WAC has been approved for MFi and equipped with MFi chips in wireless hardware products? Can the developer account approve only the WAC part without MFi approval and use it in conjunction with its own wireless hardware product? Our wireless hardware product does not support Bluetooth communication, but only Wi-Fi communication. Ultimately, what is needed is to allow users to scan Wi-Fi information right around the app without manipulating the app settings separately so that they can choose during the registration process. Thank you.

We run an app that provides smart home security-related services. Therefore, I want to link the emergency messages service, what procedures or authentication are required?

I developed it using a tool called Fuse(Hybrid app development tool).I did the FCM Background in xcode and uploaded my app to testflight.However, the downloaded app always shows ‘App crash’ when pressing the home button (entering background).The xcode version has been tested with 11.2.1, 11.0, 10.3, and 10.2, but they all happen the same.Also, this App Crash does not occur in Debug builds, only in release apps downloaded from Testflight.How can I solve this?help me please…The picture below is a crash report extracted from debug zombie.