Amadeus - Delphi® vs. Prismm (formerly AllSeated): Which Is Right for You?

Updated May 21, 2026  ·  38 verified reviews analyzed

TLDR

We analyzed 38 verified hotelier reviews, compared feature sets, pricing, and real-world case studies to break down where each platform delivers. The right choice depends on your property type and priorities:

Amadeus shines in ease of use and customer support — especially for brand properties (4.7/5) , with exclusive features like Mobile access on any device and Pace, Sales Activity, and GRC Reporting.

Prismm shines .

See the full breakdown below ↓

How Does Amadeus - Delphi® Compare to Prismm (formerly AllSeated)?

Side-by-side ratings based on 38 verified hotelier reviews on HTR.

HTScore
76
0
Likelihood to Recommend
89%
0%
Ease of Use
4.6/5
0.0/5
Customer Support
4.3/5
0.0/5
Value for Money
4.4/5
0.0/5
Starting Price Contact sales From $200/mo
Verified Reviews 38 0

What Are the Pros and Cons of Amadeus - Delphi® vs Prismm (formerly AllSeated)?

After analyzing 38 verified reviews, Amadeus users most value its ease of use, customer contacts and event management, revenue management, while Prismm users highlight . Click any theme to see what reviewers say.

Amadeus Amadeus Prismm Prismm
Pros
+ Ease of Use
+ Customer Contacts and Event Management
+ Revenue Management
+ Centralized Data Management
Cons
Integration and System Issues
Reporting
Training and Transition

Amadeus vs Prismm: Rankings by Hotel Segment

How each product ranks among Event Management Software vendors for different property sizes, types, and regions — based on verified reviews from hoteliers in each segment.

By Hotel Size

Segment Amadeus Amadeus Prismm Prismm
Small (10-24 rooms) #7 1 reviews
Mid-Size (25-74 rooms) #6 6 reviews
Large (75-199 rooms) #5 9 reviews
X-Large (200+ rooms) #5 5 reviews

By Property Type

Segment Amadeus Amadeus Prismm Prismm
Boutique #5 9 reviews
Luxury #5 11 reviews
Branded / Chain #5 15 reviews
Extended Stay #5 1 reviews

By Region

Segment Amadeus Amadeus Prismm Prismm
North America #4 23 reviews
Europe #6 1 reviews
Asia Pacific #5 0 reviews

The Decision

Choosing between Amadeus Delphi® and Prismm for your event management needs hinges on what your hotel prioritizes. Both address event planning, but Amadeus offers a broad suite of operational tools tailored for hotels, while Prismm specializes in spatial visualization and space planning. Your choice depends on whether your focus is comprehensive event management or immersive space design.

Amadeus's extensive feature set and strong industry presence make it the more established option. Prismm, however, offers innovative visualization technology that might appeal to hotels emphasizing space customization. Are you ready to make a clear decision?

Is Amadeus or Prismm Better for Hotels?

Amadeus Delphi® is a comprehensive event management platform designed specifically for hospitality, integrating sales, contracts, and operational tools into a single interface. It centralizes data for easier management and offers modules like BEO management, reporting, and client communication.

Prismm, by contrast, provides a visual digital twin of physical spaces, enabling precise planning and collaboration through immersive 3D models. It excels in space layout visualization but does not encompass the broader event management functions found in Amadeus.

While Amadeus’s platform is built to streamline multiple facets of event and sales operations, Prismm emphasizes spatial accuracy and visualization. If your hotel needs detailed space planning, Prismm could be useful; for full event lifecycle management, Amadeus is the better option. Which approach aligns more with your operational priorities?

Amadeus vs Prismm: Which Should Your Hotel Choose?

If your hotel requires a full-featured event management system with tools for sales, client relationships, and operational workflows, Amadeus is the clear choice. Its suite includes BEO management, reporting, CRM, and integrated communication, making it ideal for properties that handle numerous events and need centralized control.

On the other hand, if your team’s focus is on designing, visualizing, and collaborating on physical space layouts with clients, Prismm offers a highly immersive experience. It’s best suited for hotels with large event spaces that want to prototype layouts or for venues that rely heavily on spatial customization.

Hotels that prioritize operational efficiency, automation, and data integration will benefit more from Amadeus. Those needing advanced spatial design and visualization should consider Prismm. Your decision should reflect whether space planning or overall event management is your priority.

Is Amadeus or Prismm Easier to Use?

Amadeus Delphi® scores 4.57/5 for ease of use, with reviews praising its intuitive interface and good onboarding. Users mention that training helps staff adopt the system quickly and that navigating tasks like report generation or event setup is straightforward.

Prismm, with no available usability ratings or recent reviews, remains unassessed in ease of use. Its platform is designed for spatial visualization, which may involve a learning curve for users unfamiliar with 3D modeling or digital twin technology.

Given the established user feedback and high usability rating, Edge: Amadeus. Your team will likely find Delphi easier to implement and operate, reducing training time and increasing daily productivity.

Which Has Better Features: Amadeus or Prismm?

Amadeus offers a vast array of 37 features exclusively tailored for hospitality event management, including BEO management, lost & found modules, real-time task tracking, deep cleaning, inspection tools, and customizable reports. It also provides modules for contact management, signature collection, and financial integrations.

Prismm, by contrast, has no listed features besides digital twin creation and spatial visualization. While innovative, it lacks the operational tools that support event lifecycle management, client engagement, and reporting.

Edge: Amadeus. Its extensive feature set directly supports comprehensive event and sales management, making it the versatile choice for hotels seeking an all-in-one platform.

Which Has Better Customer Support: Amadeus or Prismm?

Amadeus scores 3.84/5 in customer support, with reviews indicating some frustrations but generally appreciating the availability of support. Customers mention that implementation can be challenging without proper training, and support responsiveness varies.

Prismm, with no recent reviews or ratings, has an unknown support profile. Given its smaller size (18 employees) and focus on spatial tech, it may offer more personalized support but lacks publicly available data to confirm.

Edge: Amadeus. Its long-standing industry presence and established support channels provide more reliable assistance, essential for smooth hotel operations.

Which Has More Integrations: Amadeus or Prismm?

Amadeus boasts 104 verified integrations with various hospitality and business systems, including Opera, Profitroom, and RevControl, among others. This broad connectivity enables seamless data flow across hotel operations.

Prismm has zero verified integrations, indicating it functions more as a standalone spatial visualization tool rather than an integrated platform for hotel management.

Edge: Amadeus. Its extensive integration network allows your hotel to embed event management within existing systems, streamlining workflows.

Which Do Hoteliers Rate Higher: Amadeus or Prismm?

Amadeus's 38 recent reviews yield an average rating of 4.53/5, with an impressive 89% likelihood of recommendation. Reviewers highlight its powerful sales and event management tools, ease of use, and flexible reporting.

Prismm, lacking recent reviews, has no available ratings or feedback to compare. Its niche focus on spatial design means it isn’t widely rated for overall utility in hotel management.

Given the volume and recency of feedback, Edge: Amadeus. Its strong ratings and recent reviews reflect robust user satisfaction.

How Much Do Amadeus and Prismm Cost?

Amadeus does not specify a fixed price; its solution is typically custom-quoted based on hotel size and needs, with no free tier or trial. Its costs are generally higher, reflecting its extensive feature set.

Prismm charges a $200 monthly fee, with no mention of a free trial or tiered pricing. Its pricing is transparent but limited to spatial visualization.

If budget is a concern, Prismm’s lower, predictable cost may appeal. For comprehensive management, however, Amadeus’s value justifies its higher price point.

What Type of Hotel Should Use Amadeus?

  • Hotels that handle multiple large events, conferences, or banquets.
  • Properties seeking centralized CRM, sales tracking, and reporting.
  • Hotels needing integrations with existing PMS and operational systems.
  • Teams that want automation and workflows for staff productivity.
  • Hotels with a focus on data-driven decision-making.

Not ideal if your hotel:

  • Operates on a very tight budget.
  • Needs only basic event booking without operational tools.
  • Prefers a simple, stand-alone spatial planning tool.

In summary, Amadeus suits hotels aiming for a broad, integrated event and sales management platform that boosts efficiency.

What Type of Hotel Should Use Prismm?

  • Hotels that emphasize space design and layout visualization.
  • Venues that need to prototype room configurations for clients.
  • Properties with flexible or large event spaces requiring detailed planning.
  • Teams that collaborate with clients virtually to finalize layouts.
  • Hotels that want to experiment with spatial arrangements before physical setup.

Not ideal if your hotel:

  • Needs comprehensive sales, CRM, or operational management.
  • Seeks an all-in-one event management platform.
  • Prioritizes automation and reporting over spatial planning.

Prismm is best for properties focused on spatial customization and client collaboration through immersive visuals.

The Bottom Line for Hotels: Which Is the Right Choice?

Amadeus Delphi® is a well-established, full-featured event management platform that centralizes sales, client relationships, and operational workflows in one system. Its 38 features, combined with 104 integrations and a strong user rating, make it a reliable choice for hotels seeking an all-in-one solution.

Prismm offers innovative spatial visualization through digital twin technology, excelling in space layout design but lacking operational features. Its niche focus makes it suitable for hotels that prioritize physical space planning over full event management.

Choose Amadeus if your goal is streamlining operations, enhancing sales, and integrating your systems. Opt for Prismm if your hotel’s primary need is virtual space design and client collaboration.

In conclusion, for most hoteliers, Amadeus Delphi® offers the broader, more proven functionality, supported by recent reviews and extensive integration options. Prismm is a compelling tool for spatial visualization but falls short as a comprehensive event management solution.

How Much Do Amadeus - Delphi® and Prismm (formerly AllSeated) Cost?

Event Management Software pricing is rarely straightforward. Here is what we know from each vendor's public pricing data. Always request a custom quote for your property size.

Amadeus Amadeus Prismm Prismm
Starting Price From $200/mo

Which Features Does Amadeus - Delphi® Have That Prismm (formerly AllSeated) Doesn't (and Vice Versa)?

According to HTR's product database, Amadeus - Delphi® and Prismm (formerly AllSeated) share 0 features. Here are the key differences — features one has that the other lacks.

Feature Amadeus Amadeus Prismm Prismm
BEO Management
Late checkouts
Lost & found module
Preventative maintenance module
Real time task tracking
Virtual logbook

Showing top differences. 25 more features differ between these products.

Amadeus vs Prismm: The Bottom Line

Amadeus
Amadeus
4.5/5 from 38 reviews

What hoteliers love

Ease of Use 90% positive

Delphi is praised for its user-friendly interface, making it easy to navigate and manage various tasks. This ease of use is beneficial for new hires a... Delphi is praised for its user-friendly interface, making it easy to navigate and manage various tasks. This ease of use is beneficial for new hires and streamlines daily operations, but some users feel that the system could benefit from a more modern look.

Customer Contacts and Event Management 84% positive

The system’s tools for managing client relationships and event details are well-regarded. Users appreciate how it keeps everything organized and helps... The system’s tools for managing client relationships and event details are well-regarded. Users appreciate how it keeps everything organized and helps with tracking sales leads and client history.

Revenue Management 89% positive

Delphi's ability to manage group bookings and forecast revenue is highlighted. This helps hotels optimize their meeting space and room inventory, cont... Delphi's ability to manage group bookings and forecast revenue is highlighted. This helps hotels optimize their meeting space and room inventory, contributing positively to revenue management strategies.

Where hoteliers push back

Integration and System Issues 67% negative

Users expressed frustration with certain integrations, notably with Opera and other systems, causing disruptions. Some mentioned the system being slow... Users expressed frustration with certain integrations, notably with Opera and other systems, causing disruptions. Some mentioned the system being slow and the occurrence of technical glitches.

Reporting 42% negative

Users find the reporting tools frequently used but note the need for improvements in speed and depth. The system's ability to generate various reports... Users find the reporting tools frequently used but note the need for improvements in speed and depth. The system's ability to generate various reports is appreciated, though some reviews mentioned that it could be more detailed and faster.

Unique capabilities

BEO Management Lost & found module Late checkouts Virtual logbook Real time task tracking
4.6/5 ease of use 3.8/5 support 104 integrations
Visit Profile
Prismm
Prismm
0.0/5 from 0 reviews
0.0/5 ease of use 0.0/5 support 0 integrations
Visit Profile

Where the ratings diverge most

Overall Rating Amadeus 4.5 vs 0.0 (+4.5)
Ease of Use Amadeus 4.6 vs 0.0 (+4.6)
Customer Support Amadeus 3.8 vs 0.0 (+3.8)
Value for Money Amadeus 4.3 vs 0.0 (+4.3)
Onboarding Amadeus 4.0 vs 0.0 (+4)

Frequently Asked Questions About Amadeus - Delphi® vs Prismm (formerly AllSeated)

Can Amadeus - Delphi® replace Prismm (formerly AllSeated)?

It depends on your requirements. Amadeus - Delphi® and Prismm (formerly AllSeated) share many core Event Management Software features, but each has unique capabilities. Amadeus - Delphi® offers 104 verified integration partners, while Prismm (formerly AllSeated) offers 0. Review the feature comparison above to see where they differ before switching.

Which is better for small or independent hotels?

Small hotels should prioritize ease of use and fast onboarding. Amadeus - Delphi® leads in ease of use at 4.6/5 vs 0.0/5. Look for transparent pricing and a trial or demo option. Filter reviews on each product page by property size to hear from hotels like yours.

Do Amadeus - Delphi® or Prismm (formerly AllSeated) offer a free plan?

Amadeus - Delphi®: No. Prismm (formerly AllSeated): No. Neither product currently offers a free tier. Most Event Management Software vendors offer demos or trials — request one from each to evaluate before committing.

How Does HTR Evaluate and Rank Amadeus - Delphi® and Prismm (formerly AllSeated)?

The HT Score is a composite ranking that considers 4 criteria groups and over a dozen variables to help hoteliers objectively compare hotel technology products. Amadeus has an HT Score of 76 and Prismm has 0. Here is how the score is calculated.

Criteria Group Weight What It Measures
Customer Ratings & Reviews

How highly do users recommend this product?

Ratings Score, Review Volume, Share of Voice, Review Depth, Review Recency, Success Stories

The most heavily weighted factor. Analyzes average satisfaction ratings (likelihood to recommend, ease of use, support, ROI), total review count relative to category peers, review recency (at least 20 reviews in the trailing 6 months), and share of voice across unique hotel clients to detect selection bias.

Partner Ecosystem

How highly do tech partners recommend this company?

Partner Recommendations, Integration Quantity, Integration Quality

Evaluates partner recommendations as expert votes of confidence, the number of verified integrations, and ecosystem quality — the average HT Scores of integration partners. Products with higher-quality integration ecosystems are more likely to deliver a connected tech stack.

Customer Centricity

How customer-centric is this organization?

Certified Support, Review Consistency, Profile Completeness

Assesses whether the company has earned HTR Customer Support Certification, maintains consistent review collection over time (an indicator of feedback-driven culture), and keeps product profiles complete with capabilities, screenshots, pricing, and features.

Reach, Staying Power & Resources

How extensive is this company's reach and resourcing?

Geographic Reach, Staying Power, Company Resources, Trending Score

Measures global presence (countries and regions served), years in business as a stability proxy, team headcount as a resource proxy, and a trending score based on trailing-twelve-month buyer inquiries, reviews, partner recommendations, and press activity.

Customer ratings and reviews are by far the most important factor in the HT Score algorithm. HTR does not accept payment for higher rankings. All reviews are verified — only hotel industry practitioners with confirmed affiliations can submit ratings. View full HT Score methodology →

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