Mostly marketing, with real exceptions. Plenty of platforms advertise "unlimited" capacity while charging per attendee, so scale becomes a billing event even when the ceiling is not. Genuinely unlimited does exist, but only on flat-fee models: Swoogo ($11,800 a year) and eventcloud ($125 per user monthly, $0 per ticket) both include unlimited registrations. Read the pricing page, not the homepage.
"Unlimited" is one of the most abused words in event software. It usually describes what you are allowed to do, not what you can afford to do. A platform can truthfully say there is no cap on how many tickets you sell while charging you for every single one, which means the limit is not on the page, it is on your bank statement. Before you believe any capacity claim, learn where the real ceilings hide.
What "Unlimited" Usually Hides
The word almost always refers to the technical ceiling, not the commercial one. Yes, the system will happily process 10,000 registrations. The question the marketing skips is what those 10,000 registrations cost you. On a per-attendee model, unlimited capacity and an unlimited invoice are the same sentence. The platform has every incentive to celebrate your sell-out, because your success is their revenue.
This is why "unlimited" and "flat" are not synonyms, even though they get used interchangeably. Unlimited capacity on a per-ticket plan just means the meter never stops running. Unlimited capacity on a flat plan means the number genuinely does not change your cost. Only the second one is unlimited in the way organisers assume when they read the homepage.
The Three Asterisks to Check Before You Trust the Claim
First, the per-registrant or per-ticket fee. Cvent, for instance, layers a licence (roughly $20,000 to $79,000 a year) on top of about $7 to $12 per registrant per event, with annual increases scheduled from July 2026. Capacity is uncapped, but each attendee is a line item, so a bigger event is a bigger bill by design. Eventbrite lets you publish unlimited events and sell without a ceiling, yet every paid ticket carries 3.7% plus $1.79 in service fees plus 2.9% processing.
Second, tiered registration bands. Some platforms sell "unlimited" within a band, then bump you to a pricier tier once you cross a registration threshold. That is a cap wearing a disguise: unlimited until it is not. Ask for the band boundaries in writing and model the event where you cross one.
Third, fair-use and infrastructure limits. Even genuinely flat plans can carry sensible caps on emails per day, API calls or concurrent load. These are usually reasonable, but "unlimited" should survive a direct question, so ask: is there any number, anywhere, at which my cost or my access changes? If the answer is a pause, you have found the asterisk.
There is a fourth cost that never appears next to the word "unlimited" but scales with your success anyway: payout holds and rolling reserves. Several marketplace platforms hold a percentage of your takings, or delay payout until after the event, precisely because a bigger event means more money they are sitting on. The capacity is uncapped, but so is the amount of your own cash parked out of reach while you are paying suppliers. It is worth asking any vendor two blunt questions: when do I get my money, and do you hold a reserve that grows with my sales? Running payments through your own Stripe account sidesteps this entirely, because the funds are yours from the moment they clear, with no platform standing between a sold-out event and your bank. Capacity you can use is only genuinely unlimited if the cash it generates is not quietly capped on the way out.
Where Unlimited Is Genuinely Real
Flat-fee platforms are where the word holds up, because there is no per-head mechanism to make scale expensive. Swoogo charges a flat $11,800 a year on its Professional tier for unlimited events and unlimited registrations, which is a real flat model, though it includes only one full user and sits at an enterprise price point. eventcloud charges $125 per user monthly (about £95 or €110) with a 14-day trial, and includes unlimited events, tickets, registrations and attendees with zero per-ticket, booking or transaction fees, running payments through your own Stripe account so the only variable cost is Stripe's own processing.
What Would Zero Booking Fees Save You?
eventcloud charges a flat subscription, not a cut of every ticket. Compare it with what your current platform takes.
The tell in both cases is that selling more tickets does not increase what the platform charges you. That is the honest definition of unlimited, and it is the one worth holding vendors to. We wrote a fuller piece on what unlimited events and attendees really means if you want the feature-level detail.
Unlimited Claims, Read Honestly
| Platform | The unlimited claim | What actually caps or costs you |
|---|---|---|
| Eventbrite | Unlimited free events, no capacity cap | Every paid ticket: 3.7% plus $1.79 plus 2.9% processing |
| Cvent | Uncapped registrations | Licence plus $7 to $12 per registrant per event, rising annually from Jul 2026 |
| TryBooking | Unlimited ticket types | Per ticket: US $1 plus 3.5%, or UK 15p plus 5% (free events free) |
| Swoogo | Unlimited events and registrations | Flat $11,800/yr, but one full user and an enterprise price |
| eventcloud | Unlimited events, tickets and attendees | Flat $125/user/mo, $0 per ticket, your own Stripe processing only |
Figures verified August 2026 from each vendor's published pricing and public procurement reports. Notice the split: the first three advertise unlimited capacity while charging per ticket or per registrant, so scale raises the bill. The last two charge a flat fee, so scale does not.
A Thirty-Second Test for Any "Unlimited" Claim
Ignore the homepage and open the pricing page. Then ask one question: if I double my attendees, does my platform cost change? If the honest answer is yes, the capacity may be uncapped but the pricing is not, and "unlimited" is a marketing word rather than a commercial promise. If the answer is no, you have found a genuinely flat model where your success is not a billing event. That single question cuts through more spin than any feature comparison, because it targets the only limit that ever actually hurts: the one on your invoice.
It also reframes the whole decision. The useful question is not "does this platform cap my capacity", because almost none do. It is "does this platform charge me more when my event goes well", because most do. For a deeper look at where the percentages land, our 2026 Eventbrite fee breakdown shows the per-ticket maths in full.
Who This Is Not For
Flat unlimited pricing is not automatically the cheapest option, and pretending otherwise would be its own kind of marketing. If you run one small free event a year, unlimited capacity is irrelevant to you: a free consumer tier costs nothing and a flat subscription would be money wasted. If you sell a modest number of low-priced tickets occasionally, a per-ticket platform may work out cheaper than any monthly fee until your volume grows. Flat, genuinely-unlimited pricing pays off for organisers running events year-round, or events large enough that per-ticket fees would dwarf a subscription. Below that crossover, honestly, do the sum and pick the per-ticket option.
If you are past that crossover and tired of watching a good sell-out turn into a bigger invoice, a flat model is the point. See how unlimited works without the asterisks on the eventcloud pricing page, or compare two flat approaches side by side in our eventcloud versus Swoogo comparison.
