連絡先リストにアクセスしたくないQRスキャナ -- applications フィールド と privacy フィールド と qr-code フィールド android 関連 問題

(I am new to Android and to this site, so please bear with me if my question is extremely stupid and if I got the tags all wrong. Feel free to improve, though.)

I want an app to scan the occasional QR code which usually should contain an URL.

The other day I meant to download an app for that and searched the market for one that does not want access to all my contacts, my granny's underpants, and whatever else it could get its grubby hands on xe2x80x94 to no avail.

How is it that they all want to dig into my pants contacts? Am I missing something or is that really just data mining on the app writers' part?

Here is QR Droid Private. It does not access your contact information.

Usually the reason they want contact access is because you can store contact information in a QR code. So when scanned, it sees that it is a contact and adds it to your contacts. without access to your contacts, it would not be able to do this. Another reason is that some of the apps allow you to create QR codes from your contacts. It would need read permission to do this.

Here is an example of a vCard stored in a qr code:

Here is the data that is stored in there:

BEGIN:VCARD N:John Q. Public ORG:Acme TITLE:CEO TEL:3125555555 URL:http://example.com EMAIL:john.q.public@email.com ADR:1234 any street suite 300 Someville\, ST 00000 END:VCARD 

Since this old question of mine still gets upvotes, let me add: I am using this open source app from F-Droid. The F-Droid folks build the apps themselves, from the sources, removing ad libs if necessary. I generally trust them way more than what you find at the play store.

(That said, I seem to remember that this app is also available at the play store. There, however, it's uploaded by the creator, and you don't know if he did upload exactly the version that's open sourced.)