App Download Tracking Feature.

Is there any readymade or plugin solution available for unity app download? I would like it to be available within the app. So, from whatever sources the user download the app, I would like to get tthe notification via mail. Is it even feasible? Please advice. Thanks in advance.

PS: App platform: IOS and Android.

I used the external plugin to sort this tracking feature.

@fafase: Thanks for your input as well.