on my andriod i have an app called my data manager that gives you the per day usage of each app (wifi/mobile/roaming). the same app on apples store doesnt do the same thing. i looked at my gfs apple and it doesnt have the 'app' option to see the daily use of each app.
what app can you use on iphone to see daily use per app
what app can you use on iphone to see daily use per app