This is a companion app for Talkbox (https://talkbox.impactapp.com.au).
Talkbox can be used to issue vouchers to your customers. This app then scans those vouchers on presentation and reports on validity of the voucher.
Valid vouchers can be redeemed. If the voucher is scanned subsequently it will be shown as not redeemable.
Vouchers may also have a validity period. If this period has expired, this app will also inform you when you scan the voucher.