Originally Posted by .::Alien::.
What about app data only without backing up the apk file.
Don't use "-apk" or use "-noapk". By default does not backup apk. But I would advise you to back it up, because your app may be removed from Play Store. Most apps are removed over time. You can backup the apk separately using "apk saver" or "apk extractor", or do it with adb backup. Take into account that nowadays there are more than one "apk", depending on android version, manufacturer and architecture, so there's no warranty you apk saved today will work in a smartphone you buy in 5 years.