There are a couple of non-scanning redemption solutions. However, if you are counting on a solution that you want to be able to scale as the number of users and redemption locations increase, then non-scanning options might not be the most manageable and you may then need to look at some of scanning options presented earlier.
Visual Redemption: In some cases - if you were a club owner or you were running an event - you can simply check that a person has a pass to make sure they are a club member or are allowed entry to an event. This can be done for example, for small, exclusive events where there is time for visual verification.
Manual Tracking: When the customer shows the sales staff the pass, the sales staff can also write down the unique number on the pass or perhaps match a name to pre-existing list of names. Some businesses may ask for an ID to match the name on the ticket or coupon (e.g. airline staff check your passport against the name on the air ticket). Whilst this type of “redemption” is more of a manual process it is suitable for campaigns where there are a relatively small, limited number of passes that are issued. Also, provided you have the staff resources who can do this manual tracking, then this could be an option for if you are considering running small exclusive events.
As mentioned, visual redemption and manual tracking are more suited for smaller, exclusive events where there are either limited passes to manage and/or there is enough time and staff resources to do the manual tracking.