Stocard - All loyalty cards on your smartphone!
QuickMark - QuickMark makes everything possible.
Apple Wallet - With Wallet, you can keep your credit, debit, and prepaid cards, store cards, boarding passes, movie tickets, coupons, rewards cards, and more in one place.
Barcode & QR Code Scanner - A free app which allow to read and generate barcodes for Android.
Pass2U Wallet - Put cards into Apple Wallet
ZXing - Barcode Scanner for Android