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 95 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 (4.5/5) , with exclusive features like Pre-stay emails and Post-stay emails.
DIRS21 by TourOnline AG shines , with exclusive features like Room substitutions and Facebook conversion tracking.
Side-by-side ratings based on 95 verified hotelier reviews on HTR.
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| Starting Price | Contact sales | Contact sales |
| Verified Reviews | 95 | 0 |
After analyzing 95 verified reviews, Amadeus users most value its ease of use, revenue enhancement, customer service, while DIRS21 by TourOnline AG users highlight . Click any theme to see what reviewers say.
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Ease of Use
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Revenue Enhancement
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Customer Service
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Advanced Reporting and Analytics
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Integration Capabilities
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Complexity and Usability Issues
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Lag in Feature Implementation
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How each product ranks among Booking Engine 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) ▾ | #22 11 reviews | — |
| Mid-Size (25-74 rooms) ▾ | #15 36 reviews | — |
| Large (75-199 rooms) ▾ | #7 26 reviews | — |
| X-Large (200+ rooms) ▾ | #9 6 reviews | — |
By Property Type
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| Boutique ▾ | #17 32 reviews | — |
| Luxury ▾ | #12 41 reviews | — |
| Branded / Chain ▾ | #10 34 reviews | — |
| Extended Stay ▾ | #14 11 reviews | — |
By Region
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| North America ▾ | #7 39 reviews | — |
| Europe ▾ | #19 14 reviews | — |
| Asia Pacific ▾ | #16 10 reviews | — |
| Middle East ▾ | #7 8 reviews | — |
Choosing between Amadeus’s iHotelier® Booking Engine and DIRS21 One hinges on your hotel’s specific needs and priorities. Both aim to boost direct bookings and streamline reservation management, but they approach these goals differently. Amadeus emphasizes a robust, feature-rich platform with extensive integrations and proven market presence. In contrast, DIRS21 One offers a flexible, modular system focused on simplicity and customization. Which aligns better with your hotel’s operational style and growth plans?
Amadeus’s iHotelier® Booking Engine is a long-established solution trusted globally, with a recent review count of 93 and a high overall rating of 4.39/5. Its strengths lie in its advanced features like automated email campaigns, A/B testing, and multiple payment options, all backed by a presence in 34 countries. Conversely, DIRS21 One has no recent reviews or ratings, making its market presence and user feedback less clear. Amadeus’s recent reviews highlight a generally positive user experience, especially on ease of use and support, whereas DIRS21’s lack of recent data limits direct comparison.
Would your hotel prefer a solution with proven, high-rated support and extensive market experience, or are you willing to consider a newer, less documented system? Given the data, Amadeus’s more recent reviews and higher ratings make it the more reliable choice for hoteliers seeking confidence and proven results.
If your hotel needs a comprehensive, well-supported booking engine with a broad feature set, go with Amadeus. It provides 28 shared features plus 8 exclusive to it—such as pre- and post-stay emails, automated reporting, and payment options like Apple Pay and Google Pay—making it ideal for hotels that want a full-suite solution.
If your hotel values flexibility, speed, and a system that can be tailored to your specific workflows, consider DIRS21 One. Its modular design is attractive for hotels looking for a customizable online booking platform, especially if you operate in a predominantly European market, where it’s more prevalent. However, note the absence of recent reviews and ratings, which suggests less current user feedback.
In summary, choose Amadeus for proven stability and comprehensive features, or DIRS21 for flexibility and adaptability, if your hotel can accept less recent market validation.
Amadeus’s iHotelier® scores 4.25/5 for ease of use, with many reviews praising its intuitive design and comprehensive onboarding process, rated 4.01/5. Users note that while initially complex, daily use becomes friendly with support, and staff adoption is high.
DIRS21 One has no publicly available recent ratings, so its usability remains unverified in the current market. Without recent user feedback, assessing how easily your team can adapt is difficult.
Edge: Amadeus.
Amadeus’s platform boasts 28 shared features plus 8 unique ones, including pre- and post-stay emails, automated reporting, and multiple payment options. These features support sophisticated marketing, analytics, and payment strategies, making it suitable for hotels seeking depth in functionality.
DIRS21 offers 5 exclusive features like room substitutions, Facebook conversion tracking, pooled inventory, meal plans, and gift vouchers—features that cater to specific operational needs. However, it lacks the extensive automation and marketing tools present in Amadeus.
Edge: Amadeus.
Amadeus’s support receives mixed reviews, with a score of 3.22/5, and some hoteliers citing slow responses and inconsistent service. Nonetheless, many praise their dedicated account managers and responsive communication, especially for complex integrations and training.
DIRS21 provides no recent reviews or support ratings, making it hard to gauge the quality of their customer service today. Given Amadeus’s larger support footprint and ongoing user feedback, it currently offers more reliable post-sale assistance.
Edge: Amadeus.
Amadeus integrates with 104 verified partners, including major channel managers, PMS providers, and marketing tools like SiteMinder, Oracle Hospitality, and Hotelchamp. This extensive network facilitates complex connectivity and broad distribution.
DIRS21 offers 31 verified partners, including some shared with Amadeus, but fewer integrations overall. Its ecosystem is smaller and less proven outside Europe, limiting options for hotels needing extensive third-party connections.
Edge: Amadeus.
Based on recent reviews, Amadeus’s hotel users rate the platform 4.39/5, with many praising its functionality, support, and revenue impact. Hotel segments like independent and boutique hotels particularly favor it, with ratings around 4.36–4.61/5.
DIRS21 lacks recent review data, so current user satisfaction and ratings are unknown. Without recent feedback, Amadeus’s higher and more verified ratings make it the clearer choice for most hoteliers.
Edge: Amadeus.
Pricing information for both solutions is not publicly available, and neither offers a free trial. Amadeus’s model typically involves custom quotes based on hotel size and needs, while DIRS21 also requires direct contact for pricing.
Given the lack of transparent pricing, your team would need to engage directly with vendors to assess value relative to your budget.
Not ideal if your hotel operates solely in a niche market with very basic needs or has minimal IT support.
Not ideal if your hotel needs a globally supported, feature-complete platform with proven support and extensive integrations.
Amadeus’s iHotelier® Booking Engine offers a comprehensive, well-supported platform with proven results and high user ratings. Its extensive feature set and global presence make it suitable for hotels aiming to maximize direct bookings and revenue with confidence.
DIRS21 One provides a flexible, modular alternative, ideal for European hotels or properties seeking greater customization. Its limited recent user feedback raises some questions about current support and usability, making it less suitable for hotels needing proven reliability.
In conclusion, if your hotel values a trusted, feature-rich system with broad market validation, Amadeus stands out. Conversely, if flexibility and a tailored approach are paramount and your hotel operates predominantly in Europe, DIRS21 might be worth exploring further—but with caution due to limited recent reviews.
Booking Engine 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.
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According to HTR's product database, Amadeus – iHotelier® Booking Engine and DIRS21 One share 28 features. Here are the key differences — features one has that the other lacks.
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| A/B testing & optimization | ||
| Apple Pay | ||
| Automated reporting | ||
| Booking abandonment recapture | ||
| Facebook conversion tracking | ||
| Gift Vouchers | ||
| Meal plans | ||
| Pooled inventory | ||
| Post-stay emails | ||
| Pre-stay emails | ||
| Room substitutions |
Showing top differences. 1 more features differ between these products.
What hoteliers love
TravelClick receives high marks for ease of use from both hotel staff and end users. Its booking engine is described as intuitive, facilitating smooth... TravelClick receives high marks for ease of use from both hotel staff and end users. Its booking engine is described as intuitive, facilitating smooth handling of reservations and rate management. This user-friendliness is a key selling point.
Many hoteliers praise TravelClick for its ability to drive revenue through advanced pricing engines, promotional tools, and better integration with va... Many hoteliers praise TravelClick for its ability to drive revenue through advanced pricing engines, promotional tools, and better integration with various channels. Mentioned are features like multi-rate display, flash sales, and the new Web 4.0 platform, which have significantly boosted direct bookings and overall revenue.
Opinions on customer service are mixed. While some users laud the support for being attentive and helpful, there are numerous complaints about slow re... Opinions on customer service are mixed. While some users laud the support for being attentive and helpful, there are numerous complaints about slow response times and difficulty in resolving issues. This inconsistency is an important consideration for potential buyers.
Where hoteliers push back
TravelClick's robust integration with various systems, including PMS and payment gateways, is highly appreciated. Many reviews highlight seamless conn... TravelClick's robust integration with various systems, including PMS and payment gateways, is highly appreciated. Many reviews highlight seamless connectivity that supports diverse functionalities and simplifies management through unified interfaces.
Despite its strengths, several users report challenges in usability, citing complex interfaces and a steep learning curve for certain features. This c... Despite its strengths, several users report challenges in usability, citing complex interfaces and a steep learning curve for certain features. This complexity can hinder optimal use of the system, especially for less experienced users.
Unique capabilities
Unique capabilities
Where the ratings diverge most
It depends on your requirements. Amadeus – iHotelier® Booking Engine and DIRS21 One share many core Booking Engine features, but each has unique capabilities. Amadeus – iHotelier® Booking Engine offers 104 verified integration partners, while DIRS21 One offers 31. Review the feature comparison above to see where they differ before switching.
Small hotels should prioritize ease of use and fast onboarding. Amadeus – iHotelier® Booking Engine leads in ease of use at 4.3/5 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 – iHotelier® Booking Engine: No. DIRS21 One: No. Neither product currently offers a free tier. Most Booking Engine 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 72 and DIRS21 by TourOnline AG 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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