Amplitude dashboard with macOS filter return iPadOS statistics

[aureliendelrue]

On the Amplitude dashboard, if I want statistics about macOS version, the dashboard retrieve iPadOS data.

[izaaz]

@aureliendelrue - We fetch the OS information from UIDevice.current.systemName. This is most likely because you've published an iOS/iPad app with macos support. On M1s, Apple lets users download the ipad version of the apps as a desktop app.

[aureliendelrue]

@izaaz You're right if you have the OS information from UIDevice.current.systemName but maybe you could use this

For example I have : Mac14,9 macOS Version 14.3.1 (Build 23D60)

[izaaz]

Thank you for the suggestion @aureliendelrue. I'll keep this issue open so we can get more feedback from others who run into this issue and decide what can be done next.

[aureliendelrue]

Hi ! Any news for the bug ?

[emartinson]

@izaaz Hi! Thank you for reply! But this is definitely a bug. From real-world environment perspective the actual system is MacOS. We'll be kindly appreciate if you add check for ProcessInfo.processInfo.isiOSAppOnMac and isMacCatalystApp which are both MacOS.

    #if os(iOS)
                    if ProcessInfo.processInfo.isiOSAppOnMac {
                        log.info("[AU] Hello from macOS")
                    } else {
                        log.info("[AU] Hello from iOS")
                    }
            #elseif os(macOS)
                    log.info("[AU] Hello from macOS")
            #elseif targetEnvironment(macCatalyst)
                    log.info("[AU] Hello from Catalyst")
            #endif

[emartinson]

@aureliendelrue the only thing I figured out as workaround is to write an enrichment plugin:

final class PlatformEnrichmentPlugin: EnrichmentPlugin {

    override func execute(event: BaseEvent?) -> BaseEvent? {
        guard let event else { return nil }
        event.userProperties = event.userProperties ?? [:]
        event.eventProperties = event.eventProperties ?? [:]
        event.groupProperties = event.groupProperties ?? [:]

        func forceMacOS() {
            event.platform = "macOS"
            event.deviceModel = "macOS_Unknown_" + (event.deviceModel ?? "")
            event.osVersion  = ProcessInfo.processInfo.operatingSystemVersionString
            event.osName = "macOS_" + (event.osName ?? "")
        }

        #if os(iOS)
        if ProcessInfo.processInfo.isiOSAppOnMac {
            forceMacOS()
        }
        #elseif os(macOS) || targetEnvironment(macCatalyst)
        forceMacOS()
        #endif
        return event
    }
}

and then add it with

aimplitude.add(plugin: PlatformEnrichmentPlugin())

This will definitely give us correct platform. But detecting environment is tricky part. I was able to get MacOS version from ProcessInfo, but OS Name / Model - is quite difficult to figure out (I found several approaches with touching system plists, but haven't tested them yet). If anyone can offer a working solution - please post it here.

Above plugin will give you these Platform, OS and Device Family: