The short answer: most concert and event tickets use a QR code, because every phone and scanner reads it. For high-demand shows the QR is rotating — shown only inside the official app, refreshing every few seconds — so it can't be screenshotted and resold. That is why a PDF or screenshot sometimes won't get you in.
The format: QR, static and rotating
Event ticketing standardised on the QR code for the same reason it dominates everywhere else — universal support. There are two flavours:
- Static QR
- A fixed code delivered as a PDF, email, or wallet pass. Scans the same from a screenshot or a printout. Common for smaller venues, theatres, and general admission.
- Rotating QR (SafeTix-style)
- A code that lives only in the official app and refreshes every few seconds (Ticketmaster's SafeTix and AXS Mobile ID are the best-known systems). It cannot be screenshotted usefully and is the norm for arena tours and high-demand events. See rotating barcode tickets.
Why venues require the app
The shift to app-only tickets is almost entirely about resale control. A static code is just an image and copies perfectly, which fuels touting and screenshot scams. A rotating in-app code:
- Expires within seconds, so a forwarded screenshot is worthless.
- Can only be transferred through the official platform, keeping the organiser in the loop.
- Lets organisers enforce price caps and cancel fraudulently resold tickets.
The trade-off lands on you: you need a charged phone, the app installed, and (sometimes) a signal at the door.
Buying, selling and transferring safely
Never buy a concert ticket as a screenshot or photo. For rotating tickets the image is worthless, and for static ones the seller can use the same image to enter ahead of you or sell it to others. Only accept a ticket transferred to your own account through the official app or marketplace.
To give a ticket to a friend, use the in-app transfer — it moves the ticket to their account and invalidates your copy. Do it ahead of time, not in the queue, since they may need to install the app first.
Getting through the gate first try
- Open the ticket before you reach the front of the line.
- Brightness to maximum, auto-brightness off.
- For a rotating code, let it refresh and present it live — don't screenshot it.
- Add static tickets to your phone's wallet so they work offline.
- If you have several tickets, know how the app shows each person's code.
Why the scanner is slow or rejecting
Big venues funnel thousands of people through a few gates, and each scan may trigger a live validation. A dim screen or a cropped code makes the reader work harder and the line crawl. If a ticket is read but rejected, it is usually a duplicate (already scanned), the wrong event/date, or a screenshot of a rotating code. The walkthrough is in why won't my ticket scan.