Comparison

QR codes vs wristbands vs paper lists for event access control

By SOMOS DER · October 30, 2026 · 7 min read

For most events with pre-registration, a QR code is the most complete way to control the door: it identifies the person, stops the same pass from entering twice, records attendance and has no cost per unit. Wristbands are useful as a physical marker for re-entry or for zones, but on their own they do not say who is wearing them. A paper list belongs in the backup box. If you are running an event in Argentina from abroad, the choice also decides how your guests receive their pass and what your local door team has to do.

Quick comparison

QR codes

Each attendee gets a unique, non-transferable code by email after registering. At the door, staff scan it with a phone camera or a barcode and QR scanner, the system answers on the spot (valid, duplicate or not authorized) and the entry is recorded with the time and the gate. That gives you live numbers: how many are in, by access type, by hour and by gate.

This lines up with what security agencies ask of any credential. The Public Venue Credentialing Guide published by the US Cybersecurity and Infrastructure Security Agency (CISA) in May 2020 says a strong credential is "visually easy to discern and simple to use, yet difficult to falsify", recommends keeping "a record of each person issued a credential", and lists electronic verification such as "scanning a bar code" as one way to check it. A QR pass tied to a registration record does those three things by design.

For: fast, no unit cost, live data, hard to copy. Against: it needs an internet connection at the door and a device to scan. Check the venue Wi-Fi or mobile signal at the entrance during your site visit, not on the morning of the event.

Wristbands

Wristbands are a physical object, and that is their strength: they let people leave and come back without a second check, they mark zones by color from across the room, and some guests keep them as a souvenir. The same CISA guide describes a "colored wristband" as a supplemental credential, something you add after the main credential has been issued, not a replacement for it.

The weak spot is identity. A wristband does not know who is wearing it, and before it is closed on a wrist it can be handed to someone else. It also costs money per unit and has to be bought, shipped or sourced locally in advance.

For: tangible, good for re-entry and visible zones. Against: cost per unit, no data, easy to pass on.

Paper lists

The printed guest list was the standard for years. With volume it is the method that builds the longest queues: finding a name by hand is slow, spellings vary (a guest registered as "Jon" arrives as "Jonathan"), and nothing stops the same name from being ticked twice at two different tables. It also leaves you with no reliable count at the end.

For: no technology. Against: slow, no duplicate control, no data.

What changes when your guests fly in

For an incentive trip or an international conference in Buenos Aires or Mendoza, part of the audience lands the day before and goes straight to the venue. A few things matter more than on a domestic event:

• The pass travels by email. Guests do not need a local phone number or an app. With PASE they register on a landing page, receive the QR code by email and show it on their phone or on paper.
• Language. The PASE registration page and the QR email are available in Spanish and English. They follow the browser language, and adding ?lang=en to the link forces English. There is no Portuguese version, so for Brazilian groups send the English link.
• Nothing to install at the door. The PASE scanner runs in the browser of any phone, tablet or computer, so your local crew can work with devices on site.
• A plan for exceptions. Someone will arrive with a dead phone or a different email. The PASE scanner has search by name to mark the entry without a QR code, and new people can be registered on the spot from the dashboard.
• Arrival peaks. The UK Health and Safety Executive's guidance on crowd management controls recommends encouraging "phased arrivals and departures" for larger crowds and warns that security procedures at the entrance must not create "an overcrowding risk". The faster each check is, the shorter the queue you have to manage. Coaches arriving together from the hotel are the classic case.

When to use each one

• QR code: most events with pre-registration, access control and a need for attendance data.
• QR code plus wristband: events with frequent re-entry or strongly separated physical zones. The QR code controls the entry, the wristband handles the physical side.
• Paper: only as a printed backup if the connection fails.

With PASE, re-entry can also be handled without wristbands: each access type can allow re-entry, and each check-in point can either consume the pass (main door, once) or only validate it (rooms and zones people go in and out of). Zones are set with a permission matrix, so the scanner at the VIP area answers not authorized to anyone whose access type is not on the list.

The real question is rarely QR code or wristband. It is QR code with or without a wristband. The control is done by the QR code.

Frequently asked questions