Compare · Last checked October 13, 2026
VenuePreview vs Prismm for wedding planning
Prismm, formerly AllSeated and now part of Cvent, is a professional event design platform: floor plans in 2D and 3D, seating charts, guest lists and collaboration, sold to venues, planners and vendors. Because it sells to wedding venues and planners, your venue or planner may already use it. VenuePreview is a couple's tool for an earlier question: what will the venue look like decorated? You upload photos of your empty or undecorated venue, choose a style and colors, and get visualizations of it decorated. Use VenuePreview to settle on the look, and Prismm, or your planner's copy of it, to lay out the room.
At a glance
| VenuePreview | Prismm | |
|---|---|---|
| Who it is for | Couples planning their wedding | Venues, planners and vendors, with wedding venues among its segments |
| Starting point | Photos of your empty or undecorated venue | A 3D scan of the space, or dimensions and walls entered by hand |
| What you get | Visualizations of your venue decorated in your style and colors | Floor plans in 2D and 3D, seating charts and guest lists |
| Decor shown | For example table settings, lighting and floral arrangements | Table settings, furniture and design objects, linen colors |
| Price | One-time packages from $19 | Free plan for 3 events; paid tiers from $49 a month |
VenuePreview vs Prismm: how they differ
A decorated look or a working layout
Prismm is built for laying out an event: you design in 2D, 3D or both with precision floor plans and templates, arrange seating and manage guest lists, with real-time collaboration in the cloud. VenuePreview answers the earlier question of style: how your venue looks decorated in the colors and theme you are weighing.
Where the picture comes from
Prismm works from a model of the space. It recommends 3D scanning the venue early, or entering its name, address, dimensions and perimeter walls, and its 3D views show that modeled space. VenuePreview starts from photos of your own venue, empty or undecorated, so the visualizations show the room you toured.
Seating and guest lists
Prismm handles the parts of planning that come after the look is chosen: floor plans, seating charts and guest lists shared between the people running the day. Its wedding page says planners can collaborate with couples (and their in-laws) in it. If you need a seating chart, Prismm is the tool for that job.
Cost and who pays
Prismm, sold as Cvent Event Diagramming, has a free plan for 1 user and 3 events, then Standard at $480 a year, Pro at $150 a month and higher tiers, as of October 2026. Photo-realistic 3D is listed only on the custom Enterprise plan. VenuePreview is a one-time purchase for a single venue upload, starting at $19 one-time for 40 venue visualizations.
Detail of the decor
Prismm's floor planning page mentions adjusting linen colors, and its homepage mentions table settings and 10,000 furniture and design objects; florals, centerpieces and draping are not mentioned. VenuePreview visualizations show the decorated space, for example table settings, lighting and floral arrangements.
VenuePreview vs Prismm, side by side
Checked against public pages on October 13, 2026. "Not stated" means the pages we checked do not say; it is not a claim that the feature is missing. "Not published" means VenuePreview has not published that detail yet.
| Topic | VenuePreview | Prismm |
|---|---|---|
| What you get | Visualizations of your own venue shown decorated in the style and colors you choose | Floor plans in 2D and 3D, seating charts and guest lists |
| What you start with | Photos of your empty or undecorated venue; each package covers a single venue upload | A 3D scan of the venue, or its dimensions and perimeter walls |
| Your part | Upload venue photos, choose a pre-made style template and color scheme, get your visualizations | Design the layout with floor plan templates and furniture objects |
| Styles and colors | Pre-made style templates and color schemes; 2, 5 or 10 style variations by package; custom style requests with Luxury | Table settings, furniture and design objects, linen colors |
| Turnaround | Most visualizations are delivered within 10 to 25 minutes of submission | You design it yourself in the platform |
| Sharing | Share with your partner, planner and vendors; vendor sharing tools come with Premium and Luxury | Real-time collaboration in the cloud |
| File format and resolution | Not published | Photo-realistic 3D on the Enterprise plan, as a customized add-on |
| Where it runs | Web app at app.venuepreview.com; sign up with Google or email | Cloud platform |
| Price | $19 one-time for 40 venue visualizations; Premium $29 and Luxury $49, one-time | Free for 3 events; paid tiers from $49 a month to $320 a month; Enterprise custom |
As of 2026-10-13
Sources: Prismm homepage; Prismm wedding planning; Prismm floor planning software venues planners vendors; Prismm prismm pricing; Prismm homepage
Pricing
VenuePreview plans come from its pricing. Competitor prices are as of October 2026, from prismm.com. Check the vendor for current pricing.
| VenuePreview package | Price | Includes |
|---|---|---|
| Basic | $19 one-time | 40 venue visualizations, 2 style variations, Single venue upload, Most visualizations delivered within 10 to 25 minutes, Email support |
| Premium | $29 one-time | 100 venue visualizations, 5 style variations, Single venue upload, Most visualizations delivered within 10 to 25 minutes, Priority email support, Vendor sharing tools |
| Luxury | $49 one-time | 200 venue visualizations, 10 style variations, Single venue upload, Most visualizations delivered within 10 to 25 minutes, Priority email support, Vendor sharing tools, Custom style requests |
| Product | Plan | Price | Includes |
|---|---|---|---|
| Prismm | Free | $0 | 1 user, 3 events, 2 diagrams per event, 150 attendees per list |
| Prismm | Standard | $49 per month | Or $480 a year |
| Prismm | Pro | $150 per month | Or $1,500 a year |
| Prismm | Premium | $320 per month | Or $3,500 a year |
| Prismm | Enterprise | Custom | 3D rendering listed only on this plan |
Prices as of 2026-10
About each option
VenuePreview
VenuePreview is an AI wedding venue visualizer. You upload photos of your empty or undecorated venue, choose from pre-made style templates and color schemes, and get visualizations of that venue decorated, so you can compare options before making expensive decoration decisions. Most visualizations are delivered within 10 to 25 minutes of submission. Packages are one-time purchases for a single venue upload: $19 one-time for 40 venue visualizations, with Premium and Luxury adding more visualizations, more style variations and vendor sharing tools. For a multi-venue wedding or more customization, contact hello@venuepreview.com for a tailored package.
Prismm
Prismm, formerly AllSeated, says it is now part of Cvent. It lets venues, planners and vendors design events in 2D, 3D or both, with floor plan templates, seating charts, guest lists, table settings and a library of 10,000 furniture and design objects, and it recommends 3D scanning a venue early. It is sold as Cvent Event Diagramming, with a free plan and paid tiers from $49 a month as of October 2026; photo-realistic 3D comes with the custom Enterprise plan. Its pricing page is not consistent about the free plan, which its FAQ says can use Pro features for 1 event. Prismm says more than 3,000,000 events have been run on it.
Which one fits your work
Choose VenuePreview when
- You are the couple and want to see the venue decorated before booking decor
- You are choosing between styles or color schemes
- You have photos of the venue but no floor plan
- You want a one-time purchase rather than a plan
Choose Prismm when
- You or your planner need a floor plan and seating chart
- Your venue already has its space in Prismm
- You need guest lists and collaboration with vendors
- You want a 3D model of the space
How to use both for one wedding
- Ask your venue or planner whether they already have your room in Prismm.
- Upload photos of the empty room to VenuePreview and compare two or three styles and color schemes.
- Pick the look, then share the visualizations with your planner.
- Have the planner build the table layout and seating chart in Prismm around that look.
- Bring both to your decor and floral meetings.
Questions about VenuePreview vs Prismm
Is Prismm the same as AllSeated?
Prismm was formerly AllSeated, and its homepage says it is now part of Cvent. The old allseated.com address did not complete a secure connection on October 13, 2026.
Can couples use Prismm?
Prismm sells to venues, planners and vendors, and its wedding page talks about planners collaborating with couples. It has a free plan for 1 user and 3 events.
Does Prismm show decor on my venue photo?
Its 3D views are of a modeled or scanned version of the space, and its pages mention linen colors and table settings but not florals. VenuePreview works from photos of your venue and shows it decorated in the style and colors you choose.
How much does Prismm cost?
As of October 2026 it is free for 1 user and 3 events, with paid tiers from $49 a month up to $320 a month and custom Enterprise pricing. Check Cvent's pricing page before buying.
Should I use both?
Often, yes. VenuePreview is for choosing the look, and Prismm is for laying out tables once the look is set.
Sources
Recheck public pages before making a buying decision. Spotted an error? Email support@venuepreview.com and we will correct it.
Checked 2026-10-13
Related pages
See it before you book
Choose the look before the layout
Upload photos of your venue and compare decorated visualizations in the styles and colors you are weighing.
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