How to Build an Events App with AI
Contents
Last updated: August 2026.
Since May 12, 2025, hiding a ticket fee until checkout has carried a real legal price tag: the FTC's Junk Fees Rule allows civil penalties adjusted annually, running past $50,000 per violation, for live-event ticket sellers who don't show the full price upfront. That rule applies to a local venue selling tickets through its own app exactly the same way it applies to Ticketmaster.
What the all-in pricing rule requires
The total price, every mandatory fee included, has to appear upfront in any advertisement or offer, and more prominently than any partial or teaser price. Optional add-ons like seat upgrades or travel insurance can still be sold separately, but they have to be clearly marked as optional, never bundled in a way that makes them look mandatory. Enforcement isn't hypothetical: the FTC and seven states sued Live Nation and Ticketmaster in September 2025 over historic drip pricing, and in 2026 the agency started sending warning letters directly to event promoters and vacation rental platforms outside that one case. A small independent venue building its own ticketing app is squarely inside the scope of this rule, not an afterthought to it.
What ticketing costs on an existing platform
Eventbrite's 2026 fee structure runs 3.7% of the ticket price plus a flat $1.79 per ticket, on top of a separate 2.9% payment processing charge per order, with no fee cap. On a $10 ticket, that works out to close to a quarter of the face value gone to fees before the organizer sees a payout. On a $50 ticket, it's closer to a tenth. Selling 200 tickets at $30 each means handing back roughly $580 in service fees alone. Worth knowing going in: Eventbrite was acquired by Bending Spoons for about $500 million in December 2025, and acquisitions like that rarely make a platform's fees more generous for existing organizers over time. Building a dedicated app instead, through a tool like Huxly, means paying a flat $25 or $99 a month rather than a per-ticket cut that scales with every sale, though the all-in pricing display, the same compliance requirement either way, still has to be built into the checkout screen deliberately.
What an events app needs beyond taking payment
QR code check-in with real validation (rejecting a ticket that's already been scanned, not just displaying a code) is the difference between smooth entry and a line full of duplicate-ticket disputes. Reserved seating needs an actual seat map tied to inventory, not a generic quantity selector, if the event has assigned seats at all. Waitlists for sold-out events capture demand that would otherwise just leave, and a calendar or social discovery layer (letting people find events by interest or location, not just a direct link) is what turns a ticketing tool into something people open on their own, not only when someone sends them a link.
Building your own versus staying on an existing platform
Staying on Eventbrite or a similar platform buys you an existing audience, discovery, and payment handling you don't have to build, worth the fee for organizers who rely on the marketplace itself to find buyers. Building a dedicated app pays off when you already have your own audience (a venue's regulars, a recurring conference's attendee list) and the per-ticket fee is pure margin loss rather than something buying you real reach, generating that app through Huxly, with Stripe connected as the payment backend, is how that math actually works out cheaper past a modest ticket volume. For payment processing details, see our guide to adding in-app purchases, and for the broader cost picture, see our breakdown of what it costs to build a mobile app in 2026.
FAQ
Does the FTC's junk fees rule apply to a small venue's own ticketing app, or just big platforms like Ticketmaster?
It applies broadly. A local venue selling tickets through its own website or app is held to the same all-in pricing standard as Ticketmaster or a major booking platform, regardless of size.
What happens if my event app doesn't show the total price upfront?
Real financial risk. Civil penalties run past $50,000 per violation, adjusted annually, and the FTC has both sued major platforms over past drip pricing and sent direct warning letters to smaller promoters in 2026.
Can I still charge extra fees for things like seat upgrades?
Yes, as long as they're clearly presented as optional add-ons rather than bundled in a way that makes them look mandatory. The rule targets hidden or deceptive fees, not optional pricing itself.
How much does Eventbrite actually take from a ticket sale?
3.7% of the ticket price plus $1.79 per ticket, plus a separate 2.9% payment processing fee per order, with no cap on total fees. That's roughly a quarter of a $10 ticket and about a tenth of a $50 ticket.
Should I build my own ticketing app instead of using Eventbrite?
Depends on where your audience comes from. If you rely on the platform's own discovery and marketplace to find buyers, the fee is buying you real reach. If you already have your own audience, the per-ticket cut is closer to pure margin loss, and a flat-priced app builder like Huxly makes that math favor owning the channel sooner.
What's the most important technical feature beyond payment processing?
Real QR code validation that rejects an already-scanned ticket, not just a code that displays without checking. Duplicate-entry disputes at the door are one of the most common operational failures in a first-time ticketing app.
Does reserved seating need special technical handling?
Yes. A real seat map tied to live inventory is a different, more complex problem than a simple quantity selector, and it's worth scoping as its own feature rather than assuming general-admission ticketing logic covers it.
