Before revision:  For the test certificate Holder, Issuer (e.g. doctor , pharmacy) and Verifier (e.g. employer), it is 'just another app' which takes only minutes to use.
After revision:  For the test certificate Holder, Issuer (e.g. healthcare staff , pharmacy) and Verifier (e.g. employer), it is 'just another app' which takes only minutes to use.