How to transfer apps from iPhone to iTunes?

My computer crashed recently and after installing iTunes, I have to download again apps I purchased from Appstore. However, I found that some old apps are no longer available in Appstore nor in my iCloud account. I want to transfer them back from my iPhone to my iTunes to have a backup just in case my iPhone is out of order. Anybody who can help me please.

If you just want to backup your App, iTunes is not a good choice. You can simply use other iPhone backup tool to do this job with ease.

1. Download and install a iPhone backup too, connect your iphone with pc.
2. With the backup tool, export the items you want to backup to your pc.

Usually, you can backup all the items you want with ease. Photos, apps, songs, movies etc.

You can try this free iPhone backup tool: Syncios

Well you can use icloud to transfer them to itunes

Use the same account on iTunes as you use on your iPhone for the app store and iTunes apps. If you do that then everything you buy will automatically download in iTunes when you open iTunes next. Worse case scenario you can go to one of the top tabs for iTunes and you'll have the option download bought items from iTunes and the App store and that should download everything.

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