How to Build an App Like Eventbrite: Ticketing Infrastructure, Discovery Engine, and Real Costs

Eventbrite's fee structure is 3.5% plus $1.59 per ticket on the Flex plan. Sell 500 tickets at $200 and you pay $3,500 plus $795, totaling $4,295 in platform fees for a single event. That number does not include Stripe's payment processing fee on top.

The global event ticketing market is projected to reach $95 billion by 2030, according to Grand View Research. Most of that revenue flows through platforms that capture a percentage of every ticket sold. When you own the platform, you capture what you would otherwise pay in fees.

How Eventbrite makes money, and what your options are

Eventbrite is a transaction-fee business. Every paid ticket sold through their platform generates revenue for them, not for you.

On the Flex plan, organizers pay 3.5% of the ticket price plus $1.59 per ticket. There is also a 2.9% payment processing fee from their payments partner. Free events are free to list. The model works for Eventbrite because they sit between the organizer and the attendee on every single transaction. According to Eventbrite's 2023 annual report, the company processed over 300 million tickets that year.

When you own the platform, the monetization options depend on whether you are running it for yourself or building a multi-organizer marketplace.

For your own events, the math is simple: you pay Stripe's processing fee (2.9% + $0.30 per transaction) and nothing else. A $200 ticket costs you $6.10 in processing instead of $8.69 in Eventbrite fees. At volume, the difference is significant. An organization running 20 events per year at 500 tickets each pays $86,900 annually to Eventbrite. The same volume on your own platform costs $61,000 in Stripe fees. That is a $25,900 annual saving, which means the build pays back in about four years and every year after is profit.

For multi-organizer platforms, you can charge organizers a platform fee (a flat monthly subscription, a per-event fee, or your own percentage on each ticket), and you keep the spread between what you charge and what Stripe charges you. A platform fee of 2% on $100K in monthly ticket sales generates $2,000 per month in platform revenue on top of subscription income.

The third option: charge organizers a monthly SaaS fee for access to the platform, with no per-ticket fee at all. This works well for venue operators or associations with a known pool of regular event organizers who prefer predictable costs over variable fees.

Who builds this instead of using Eventbrite

Most organizations building their own ticketing platform are not trying to compete with Eventbrite globally. They have a specific event volume, a specific audience, and specific reasons why Eventbrite's generic model creates friction.

Venue operators and conference organizers with consistent volume. A convention center running 15 events per year at 300 to 800 attendees each pays $40K to $80K annually in Eventbrite fees. At $80K to build, the payback is 12 to 24 months. After that, every event is incrementally cheaper to run. They also want their own brand on the ticketing experience, not Eventbrite's.

Associations and membership organizations. A professional association running an annual conference plus monthly chapter events wants member pricing, renewal prompts at checkout, and attendee data it can actually use for year-round communication. Eventbrite does not integrate cleanly with most membership management systems, and it locks attendee data inside Eventbrite's platform.

Sports leagues and recreational organizations. A regional sports league running seasonal registrations, tournaments, and training camps needs ticket types linked to rosters, teams, and seasonal memberships. Eventbrite treats every event as a standalone transaction. For recurring organizations with multi-event participants, a custom platform models the relationship correctly.

Multi-organizer event platforms. An agency or media company that produces events for multiple clients, or a B2B platform selling event software to a specific vertical (real estate conferences, medical education, restaurant industry), needs white-label capability, multi-organizer access controls, and per-organizer reporting. Eventbrite cannot be white-labeled.

What features to build and when

Not everything needs to be in version one. The right phasing avoids building features before you know they are needed, and it prevents the QA debt of launching a system that is 80% tested across 20 features instead of fully tested across 10.

V1 is what you need to sell tickets, check people in, and know how the event went. V2 adds the operational features organizers ask for after their first event. V3 is for platforms serving multiple organizers or needing to separate revenue flows.

The single biggest phasing mistake in event platform builds: trying to build the native mobile check-in app in V1 alongside everything else. The offline sync adds 3-4 weeks and significant complexity. For most organizations, web-based check-in on a tablet works fine for the first several events. Ship V1 with web check-in, run a real event, then build the native app knowing exactly how your staff actually works.

What each core feature does for the business

How ticket types and pricing configuration work

A single event can have multiple ticket types: General Admission at $50, VIP at $150, Early Bird at $35 (sold until two weeks before the event), and a Group Discount at $40 per person for purchases of five or more. Each ticket type has its own capacity, price, and sales window.

The business consequence: multiple ticket types let you run early-bird promotions without manually switching prices, capture premium pricing from VIP buyers, and manage group sales without custom invoices. The early bird window closes automatically at a set date. No one has to remember to change the price.

Waitlists activate when a ticket type sells out. Attendees join the queue by email. If a cancellation comes in, the next person gets a 24-hour window to purchase. This prevents released inventory from sitting empty while interested buyers have no way to access it.

Recurring events cover weekly and monthly use cases. The organizer creates a series once and the system generates individual event instances. An attendee can register for one instance or the whole series. Canceling one instance does not cancel the series.

What checkout and payment handling actually protects

Eventbrite has Stripe's processing infrastructure built in. When you build your own platform, Stripe is still the right choice. The checkout flow handles the financial transaction and ticket issuance. Both must succeed or neither should.

The attendee selects ticket types and quantities, fills in required fields (name, email, custom fields like dietary restrictions), applies a promo code if they have one, and completes payment. Tickets are issued only after confirmed payment. Do not issue tickets on a client-side payment confirmation. Wait for Stripe's server-side webhook.

The business consequence of getting this wrong: a determined buyer can manipulate a client-side payment confirmation and receive valid tickets without completing the transaction. Server-side confirmation closes that gap.

Promo codes reduce the ticket price by a percentage or flat amount, with a usage limit and expiry date. This is the primary mechanism for early-access pricing, partner discounts, and sponsor giveaways.

When an attendee buys three tickets in one order, each ticket gets its own QR code. Group orders share one payment record but have individual ticket records. This means one person in a group can arrive early and check in independently.

Why offline check-in is not optional

"The biggest failure mode at live events isn't a bad speaker or a slow bar. It's a check-in line that stops moving because the wifi dropped. The technology has to work when the network doesn't." -- Julius Solaris, event industry analyst and founder of EventMB

The check-in app must work without a live connection. Event venues have unreliable WiFi, and a check-in system that requires connectivity will fail during a large event, publicly.

The business consequence: a broken check-in line at a 500-person conference creates 15 to 30 minutes of visible chaos. Attendees complain. Staff improvise. The organizer's credibility takes a hit that has nothing to do with the quality of the event itself.

Before the event, the app downloads all valid ticket IDs for that event to a local database on the device. When offline, scans check against the local dataset. Check-in events are recorded locally and synced to the server when connectivity returns.

The conflict case: two staff members each scan the same ticket while both are offline. Both devices record a successful check-in. When they sync, the server receives two check-in events for the same ticket. The server keeps the earlier timestamp as the canonical check-in and flags the duplicate. This is manageable, not catastrophic.

Cross-platform mobile saves $30K-$50K compared to native iOS and Android builds. One codebase deploys to both platforms, which matters because event staff use whatever devices they already own.

What organizer reporting needs to include on event day

The organizer dashboard serves two moments: the days before an event (tracking ticket sales progress) and the day of (monitoring check-in progress in real time).

Before the event, the most-used view is day-by-day revenue. Organizers want to see whether a promotional push on Tuesday moved tickets. Sales by ticket type tells them whether VIP is selling as expected or whether Early Bird is dragging. This is the first screen organizers open every morning.

On event day, the check-in progress view shows how many attendees have arrived versus how many are registered, broken down by ticket type. Organizers running multiple entry points want to see this in real time so they can redirect staff if one entrance is bottlenecked.

Post-event, the attendee list export is what drives everything from name badges to dietary summaries to post-event email lists. Column selection for the export (which custom field answers to include) turns this from a technically present feature into a genuinely useful one.

Refund management needs to find an order by email or order reference, show what was purchased, and let the organizer issue a full or partial refund. The platform calls Stripe's refunds API and marks refunded tickets as invalid for check-in.

How public event pages affect ticket sales

Public event listings need to rank in Google Search. According to Google's documentation on Event structured data, events with valid schema markup are eligible to appear as rich results directly in search, showing date, location, and ticket availability before the user clicks.

Each event gets a dedicated URL with the event slug. The page includes the event title in the H1, full description, date, location, and ticket prices. Add Google's Event schema markup using JSON-LD.

The business consequence: events with rich results in Google Search show the date, location, and ticket availability directly in search results. That extra information increases click-through rate before anyone lands on the page. For events with upcoming dates and available tickets, the difference in organic traffic can be 20-40%.

The discovery index page supports filtering by category, location, and date range. Date range filtering requires efficient indexing on the event start date. Categories are organizer-defined tags. Location search can be city-based text filtering or geography-based radius search depending on how many events the platform holds.

What virtual event delivery requires

Virtual events add one thing to the standard flow: a meeting link delivered to registered attendees.

Create the virtual meeting room when the event is published, using the Zoom or Microsoft Teams API. Store the join URL against the event record. Include it in the order confirmation email, in a "Join Event" button on the attendee dashboard, and in a reminder email 30 minutes before the event starts.

Post-event recording access is a separate feature. When the recording is ready, Zoom sends a webhook. The platform receives the webhook, fetches the recording URL, stores it against the event, and emails registered attendees with a time-limited access link.

Build vs. Eventbrite: when does custom win?

Keep using Eventbrite when: you run fewer than five events per year, your events have no recurring patterns or multi-organizer complexity, you do not need white-label branding, and you are comfortable giving Eventbrite ownership of your attendee data and relationships.

Build your own when: fee savings justify the build cost within two to three years (the math above makes this concrete), you need your own brand on the ticketing experience, you need attendee data you can actually use for year-round communication, or you are building a platform for multiple organizers who need separate accounts and separate revenue flows.

The payback math for a conference organizer running 10 events per year at 500 tickets and $200 per ticket: they pay $43,000 annually to Eventbrite. A custom build at $80,000 recoups in under two years. Every event after that pays them back, not Eventbrite. Add brand ownership and the fact that their attendee list belongs to them, not to a third-party platform, and the case gets stronger.

The case does not close: if you run two or three events per year at irregular intervals, the fee savings rarely justify the build cost, and Eventbrite's operational overhead is lower than maintaining your own platform.

What we have seen go wrong in event platform builds

The two most under-estimated phases in event platform builds are the QR check-in offline sync and the recurring event series data model. Both routinely add 3-4 weeks when not scoped at the start.

The offline sync failure mode: teams build the offline check-in correctly in isolation, test it in the office, and ship it. Then at the first real event, staff use four different devices, two of which have not synced the pre-event ticket list. Those two devices cannot validate tickets. The fix is pre-event sync verification built into the app itself, with a visible status indicator that turns green only when the full ticket list is confirmed downloaded. Teams that skip this discovery moment spend event day managing a manual backup process.

The recurring series data model failure: the team builds recurring events as repeated copies of a single event record. Six months later, the organizer wants to cancel one instance without affecting the rest of the series, or they want to change the venue for all future instances. Neither operation is cleanly possible with a copy-based model. The fix is a proper series record with instance records hanging off it, and update operations that distinguish between "this instance only" and "all future instances." Teams that design this correctly from the start avoid a painful data migration.

How RaftLabs fits

RaftLabs has built ticketing and event management systems for venue operators, conference organizers, and associations. We scope the work in two weeks and deliver a milestone plan before any code is written.

If you are evaluating an event platform build and want a scoped estimate for your specific requirements, talk to our team. Tell us your event volume, ticket types, and what Eventbrite is not doing for you, and we will come back with a realistic cost and timeline.