Looking for an AllSeated or Prismm alternative
AllSeated became Prismm; Cvent bought Prismm in 2025 and describes its customers as venues, hotels and vendors. Weddings are not in that list.
Social Tables now trades as Cvent Event Diagramming. It is a serious, well-built product for collaborative room design — to-scale floor plans, real-time 3D, several people working in the same layout at once — and it is aimed at planners working with hotels and venues.
There is a free tier, and it is worth knowing its shape before you plan around it: at the time of checking it covers one user, three events, two diagrams per event and attendee lists up to 150. Paid plans start around $150 a month. For a venue running events every week that is a rounding error. For one wedding it is more than the wedding needs.
If you are a venue or a planner who works inside venues every week, and the deliverable is a diagram the banqueting team builds from, this is the better tool and it is not close. If you are seating one event and the difficulty is the people rather than the room, a monthly diagramming subscription is the wrong shape of thing to buy.
| Cvent event diagramming | SeatingSorted | |
|---|---|---|
| Built for | Hotels, venues and the planners who work with them | Whoever is deciding the seating for one event |
| Pricing | Free tier (1 user, 3 events, 150 attendees); paid from about $150/month | One payment per event, from $50, no subscription |
| Room diagramming | Excellent — to-scale, 3D, collaborative | Simple, printable floor plan |
| Deciding who sits where | You drag guests onto tables | Rules in, plan out |
| Asking guests anything | Attendee lists, not questions | RSVP link with a confidential “rather not sit with” question |
| Keep-apart enforced | No — you check by eye | Yes, on every run |
| Team collaboration | Real-time, multi-user | One organiser, plus read-only sharing |
| Re-seating after changes | Re-drag | Re-run; pinned seats hold |
Both of these tools have the words “seating chart” on the box and they are not doing the same job. One produces a picture of the room. The other decides what goes in it. If you buy the first expecting the second, you will have spent $150 a month to do the difficult part by hand anyway.
Comparisons age. This one was last checked in August 2026 — if something here is out of date or unfair, tell us and it gets corrected.
AllSeated became Prismm; Cvent bought Prismm in 2025 and describes its customers as venues, hotels and vendors. Weddings are not in that list.
Free, already has your guest list in it, and genuinely fine for a straightforward room. Here is where the wall is.
The default option, and for a small wedding the correct one. Here is the point at which it stops paying for itself.
Two different jobs that share a name. One of them Canva is genuinely the best tool for.
Most comparison articles list twelve products. There are really only four kinds, and picking the kind is the whole decision.