QuickMark, the QR code- and barcode-scanning app for iOS, has been updated to version 4.6.0, adding support for “continuous scanning” and making a number of performance improvements to the application. What’s more, for a limited time only, iDevice owners can download the app free of charge in the App Store.

Continuous scanning is a useful feature, allowing users of the application to scan code after code with an iPhone, iPad, and iPod touch. Below, we’ve included a demo video that shows off the new feature in action.

The bad news, however, is that users must unlock continuous scanning in QuickMark 4.6.0 through a $1.99 in-app purchase.

Besides the above, developer SimpleAct Inc. has also made a number of performance improvements in the updated application, including the ability to decode from a photo album image when in “Scan” mode.

If you can’t see the above video, please click this link.

QuickMark can be downloaded in the App Store free of charge for a limited time only, and is optimized for the iPhone, iPad, and iPod touch.

Check out the recently updated application now, or for more app news, see: YouTube Capture Gets Support For Accounts With Multiple Channels And MoreDungeonism Is A Cute And Colorful Turn-And-Tile-Based Dungeon Crawler, and Today’s Apps Gone Free: Peggle, Localscope, Grid Diary And More.