Prismm (formerly Allseated) alternatives for event and trade show floor plans
Prismm, formerly Allseated and now part of Cvent, designs events in 2D and photorealistic 3D, seats guests and gives venue sales teams branded 3D walkthroughs and virtual tours. Here is where it is the better choice, and where Map D and other tools fit shows that sell booths from the floor plan.
Written by Map D, which is one of the alternatives listed below. Claims about other platforms are limited to what those companies publish themselves, and each is sourced at the foot of the page. Last verified November 2026.
Hall A
LiveHall A revenue
$184,600
Trusted by associations, expos and show organizers since 2011
What Prismm is good at
Prismm is built to help a planner and a venue see an event before it happens, and to help venues sell their space. For weddings, banquets, corporate events and venue sales it is often the right answer. If the following describe your work, keep it on your shortlist.
- Event layouts designed in 2D and brought into photorealistic 3D, so clients and stakeholders can see the room before the event.
- Seating assignments and guest lists, with table settings applied to one table or all of them at once.
- Real-time collaboration on the same design, with shareable links and comments left directly on the layout.
- A large library of venue floor plans and ready-to-use objects, with the option to request a venue that is missing.
- Branded 3D virtual walkthroughs and tours that venue sales teams embed on their website and attach to proposals, with an inquiry form inside the tour.
Why organizers look elsewhere
The gaps that send trade show organizers looking for an alternative.
- Prismm's home, event design, sales and virtual tour pages describe design, seating, collaboration and venue sales. They do not describe booth sales, exhibitor checkout or an exhibitor portal, so a show whose income comes from selling its floor will need another tool for that.
- Trade show and expo organizers may want the floor plan itself to be the published map exhibitors buy booths from and attendees use to find their way, rather than a design handed to a separate sales system.
- Prismm's site says it is now part of Cvent, and its pricing link opens a Cvent Event Diagramming page. Teams that chose Allseated as an independent tool may want to review where the product is heading before renewing.
How Map D compares
Map D’s column states what Map D does. Where a Prismm equivalent is not publicly documented, the row says so rather than guessing.
- Map D offers
- 6 of 10
- Prismm publicly documents
- 6 of 10
The second bar counts what Prismm documents on its own site, which is not the same as what it can do. A criterion we could not verify is shown as unverified, not as missing — if Prismm covers it somewhere we did not find, that is a gap in our checking rather than in their product.
| Criterion | Map D | Prismm |
|---|---|---|
| Published pricing | Included | Documented |
| To-scale 2D floor plans | Included | Documented |
| Photorealistic 3D views and virtual walkthroughs | Not offered | Documented |
| Guest seat assignment and guest lists | Not offered | Documented |
| Branded 3D tours for venue sales | Not offered | Documented |
| Several people editing at once | Not offered | Documented |
| Exhibitors pick and pay for booths on the floor plan | Included | Unverified |
| Exhibitor self-service portal | Included | Unverified |
| Interactive floor plan attendees use at the show | Included | Unverified |
| Sponsorship sales | Included | Unverified |
$3,499
—
Map D’s rates are per event and listed on the pricing page. The dashed column has no height and no figure on purpose: where rates are not published we will not put a number on them, and where they are published we will not restate one that can change without notice.
Criterion by criterion
| Criterion | Map D | Prismm |
|---|---|---|
| Published pricing | Yes. The free plan builds the floor plan for one event. Publishing the map, sharing it with exhibitors and selling booths need a paid plan: Basic starts at $3,499, plus a one-time $250 onboarding fee. Professional and Enterprise are quoted. | Prismm's pricing link opens a Cvent page that lists a free plan, published monthly and annual rates for its paid plans, and Enterprise pricing on request (checked November 2026). |
| To-scale 2D floor plans | Draw the venue to scale from an imported image, a blank map or a hall from the Venue Library, then place booths, tables, chairs, walls and paths. An AI floor plan assistant turns a venue plan and booth list into a draft map you review before publishing. | Prismm documents 2D and 3D floor plans and a library of venue floor plans and objects (checked November 2026). |
| Photorealistic 3D views and virtual walkthroughs | Not offered. Map D floor plans are 2D interactive maps. | Prismm documents photorealistic 3D designs, 3D event diagramming and 3D virtual walkthroughs (checked November 2026). |
| Guest seat assignment and guest lists | Not offered. Tables and chairs draw to scale with seat counts, not the names of the guests who sit there. | Prismm documents seating assignments and guest list management (checked November 2026). |
| Branded 3D tours for venue sales | Not offered. Map D is built for the organizer running the show, not for a venue marketing its rooms to prospects. | Prismm documents branded 3D walkthroughs in proposals and self-guided 3D virtual tours on a venue's website, with an inquiry form in the tour (checked November 2026). |
| Several people editing at once | No. One person edits the map at a time; colleagues can pan, zoom, inspect and export. | Prismm documents real-time collaboration, shareable links and comments on the layout (checked November 2026). |
| Exhibitors pick and pay for booths on the floor plan | Core to the product. Exhibitors select booths on the map and pay online, or send a request you approve first, with deposits and partial payments supported. | Booths, exhibitors and booth sales are not described on Prismm's home, event design, sales or virtual tour pages (checked November 2026). |
| Exhibitor self-service portal | Exhibitors manage profiles, staff badges, documents, add-ons and invoices in their own portal. | An exhibitor portal is not described on Prismm's home, event design, sales or virtual tour pages (checked November 2026). |
| Interactive floor plan attendees use at the show | The published map shows attendees which exhibitor is in which booth, with wayfinding to help them find their way around the floor. | Prismm's virtual tours are described for showing venue space to prospects; an attendee map of exhibitors with wayfinding is not described on the pages checked (checked November 2026). |
| Sponsorship sales | Sell sponsorship packages online alongside booths, on the same event record. | Prismm's sales page mentions using branding in 3D designs to show potential sponsorship opportunities; selling sponsorships with checkout is not described (checked November 2026). |
The alternatives worth shortlisting
Map D
Trade shows, expos and fairs whose income comes from booths and sponsorships sold on the floor plan
To-scale floor plans with an AI floor plan assistant, published as an interactive map exhibitors buy booths from and attendees navigate, with an exhibitor portal, sponsorship sales and check-in. No 3D walkthroughs, guest seat assignment or simultaneous editing.
Cvent Event Diagramming (formerly Social Tables)
Planners and venues already working inside Cvent
Collaborative event design with to-scale layouts, visual seating charts, photo-realistic 3D and interactive floor plans, check-in and tools for venues to showcase space.
PerfectTablePlan
Weddings, galas and banquets where who sits next to whom is the whole job
Desktop software for Windows and Mac that assigns guests to seats automatically or by drag and drop, with RSVPs, meal choices and one-time pricing.
ExpoFP
Trade shows that mainly need an interactive floor plan with booth reservations
A browser floor plan editor, booth reservation and card purchase on the map, exhibitor-updated profiles and a free start.
Where Map D is stronger
- The floor plan is the sales tool. You draw the hall to scale, or start from the Venue Library, with help from an AI floor plan assistant, then publish it as the interactive map exhibitors pick and pay for booths on.
- Exhibitors buy booths online with checkout, deposits or partial payments, then manage their profile, staff badges, documents and add-ons in the exhibitor portal. Sponsorships sell on the same event record.
- Attendees use the same map to find exhibitors, with wayfinding, and check-in and badge printing on Zebra, Epson or Brother printers are available as part of the quoted ticketing and registration add-on.
- Pricing is per event: the free plan builds one event's floor plan, and publishing, sharing and selling booths start at Basic, $3,499 plus a one-time $250 onboarding fee. Map D never charges per booth and takes no Map D transaction fee on booth sales.
- 900+ organizers, 9,000+ events powered and $400M+ in booth and exhibitor sales, building since 2011.
When Prismm is the better choice
- You need photorealistic 3D views or virtual walkthroughs to win a client's approval. Prismm documents them; Map D does not offer 3D.
- You are seating a wedding, gala or banquet guest list and need named guests at tables. Prismm documents seating assignments and guest lists; Map D does not assign guests to seats.
- You sell hotel or venue space and want branded 3D tours on your website and in proposals. Prismm is built for venue sales teams and Map D is not.
- Several people on your team need to edit the same design at once and comment on it. Prismm documents real-time collaboration; in Map D one person edits at a time.
- You never sell booths and only need a design to share. Prismm's free plan may be enough, while Map D's free plan builds one event's floor plan and publishing is paid.
Frequently asked questions
What is the best Prismm alternative?
It depends on the job. For a trade show, expo or fair that sells booths and sponsorships from the floor plan, Map D. For diagramming and seating inside Cvent, Cvent Event Diagramming, formerly Social Tables. For wedding, gala and banquet seating with RSVPs and meal choices, PerfectTablePlan. For an interactive trade show floor plan with booth reservations, ExpoFP. If 3D walkthroughs and venue sales tours are the point, Prismm may still be the better choice.
Is Prismm the same as Allseated?
Yes. Testimonials on Prismm's site refer to Allseated, now Prismm Platform, so anyone searching for an Allseated alternative is looking at the same product (checked November 2026).
Is Prismm part of Cvent?
Its site says Prismm is now part of Cvent, and its pricing link opens a Cvent page that presents the product as Cvent Event Diagramming. Cvent Event Diagramming is also the name Social Tables now sells under (checked November 2026). How the two products fit together over time is for Cvent to say.
Is there a Prismm alternative for trade shows and expos?
Yes. Prismm's pages describe event design, seating, collaboration and venue sales, not booth sales or exhibitor management. Map D is built for the trade show case: you draw the hall to scale, publish it, and exhibitors pick and pay for booths on the same map, with an exhibitor portal, sponsorship sales and attendee wayfinding behind it. ExpoFP also offers booth reservations on an interactive floor plan.
Does Map D do 3D walkthroughs or guest seating like Prismm?
No. Map D draws floor plans to scale in 2D, with tables and chairs that show seat counts, and does not offer 3D walkthroughs or assign named guests to seats. If those are the job, use Prismm, Cvent Event Diagramming or PerfectTablePlan.
Does Prismm publish its pricing?
Yes. Its pricing link opens a Cvent page that lists a free plan, published monthly and annual rates for its paid plans, and Enterprise pricing on request (checked November 2026). Map D publishes its pricing too: the free plan builds one event's floor plan, and publishing and selling booths start at Basic, $3,499 plus a one-time $250 onboarding fee.
Stop reading about it. Build one.
Upload the floor plan you already have and place your booths on it yourself, in Map D’s editor. Free to build, no contract, and nothing to install.
- 900+
- Organizers who have run shows on Map D
- 9,000+
- Events powered since 2011
- 1.8M+
- Booths drawn to date
“I am really excited about this. The staff met with me this morning and we all LOVE the platform. People are already filling out their booths.”
Sources
- Prismm home page (formerly Allseated, now part of Cvent) · checked 2026-11-10
- Prismm event design software · checked 2026-11-10
- Prismm immersive sales software · checked 2026-11-10
- Prismm 3D virtual tour software · checked 2026-11-10
- Prismm pricing on Cvent (free plan, published rates) · checked 2026-11-10
- Cvent Event Diagramming (formerly Social Tables) home page · checked 2026-11-10
- PerfectTablePlan home page (one-time pricing) · checked 2026-11-10
- ExpoFP home page · checked 2026-11-10
- Map D help: open the map editor (scale, one editor at a time) · checked 2026-11-10
- Map D help: build your floor plan with AI · checked 2026-11-10
- Map D help: draw your floor plan (tables and seat counts) · checked 2026-11-10
- Map D help: open booth sales · checked 2026-11-10
- Map D pricing · checked 2026-11-10