smac checker is a cross platform qr->server mobile app for android and ios.

• quick and dirty hack with less than decent exception handling

• You need Visual Studio or Xamarin Studio
• The qr scanning component does not run in simulator, so physical devices are required

smac checker uses these open source components:

• [Zxing] - Barcode Scanning Library for MonoTouch, Mono for Android, and Windows Phone
• [Newtonsoft.Json] - Json library
• [Xamarin.Forms] - Cross platform ui
• [Xam.Settings] - Cross platform configuration storage

Want to contribute? Great!