[ladberg]

I'm not sure what they use to do it, but I'm amazed by the "Lose It!" app's barcode scanning feature. It'll scan correctly in the first fraction of a second that a barcode is visible on-screen with bad lighting, motion blur, weird/reflective colors, and crinkling.

[mfrisbie]

Native apps use Android/iOS scanning libraries that are much more effective than the in-browser options. They are still nowhere near as good as hardware scanners.