The project dashboard is a free tool that is only available to verified hoteliers to make adopting new technology easier by streamlining their research and simplifying their communication workflow.
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 .
Side-by-side ratings based on 38 verified hotelier reviews on HTR.
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| Starting Price | Contact sales | From $200/mo |
| Verified Reviews | 38 | 0 |
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.
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Ease of Use
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Customer Contacts and Event Management
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Revenue Management
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Centralized Data Management
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Integration and System Issues
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Reporting
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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
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| 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
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| Boutique ▾ | #5 9 reviews | — |
| Luxury ▾ | #5 11 reviews | — |
| Branded / Chain ▾ | #5 15 reviews | — |
| Extended Stay | #5 1 reviews | — |
By Region
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| North America ▾ | #4 23 reviews | — |
| Europe | #6 1 reviews | — |
| Asia Pacific | #5 0 reviews | — |
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?
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?
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.
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.
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.
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.
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.
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.
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.
Not ideal if your hotel:
In summary, Amadeus suits hotels aiming for a broad, integrated event and sales management platform that boosts efficiency.
Not ideal if your hotel:
Prismm is best for properties focused on spatial customization and client collaboration through immersive visuals.
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.
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.
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| 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.
What hoteliers love
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.
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.
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
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.
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
Where the ratings diverge most
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.
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.
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.
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 |
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| Customer Ratings & Reviews |
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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 |
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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 |
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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 |
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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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