What are some alternatives?
When comparing i-nigma Reader and MKH Barcode Reader, you can also consider the following products
Barcode Scanner - Barcode Scanner for Android
QuickMark - QuickMark makes everything possible.
Obsqr - obsqr is an open-source, fast and lightweight QR scanner for Android.
bcWebCam - Scan barcodes and QR Codes with your computer web cam
ZBar bar code reader - ZBar bar code reader
UPCDB - Find product information and offers by product UPC code.