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 198 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:
The Guestbook shines in ease of use and customer support — especially for independent properties (5.0/5) , with exclusive features like Custom Segment Messaging and Messaging Analytics.
Kumulos shines .
Side-by-side ratings based on 198 verified hotelier reviews on HTR.
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| Starting Price | From $200/mo | Contact sales |
| Verified Reviews | 198 | 0 |
After analyzing 198 verified reviews, The Guestbook users most value its loyalty program effectiveness, ease of use, revenue and roi, while Kumulos users highlight . Click any theme to see what reviewers say.
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Loyalty Program Effectiveness
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Ease of Use
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Revenue and ROI
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Increased Direct Bookings
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Email Marketing Limitations
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How each product ranks among Direct Booking Tools 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) ▾ | #3 25 reviews | — |
| Mid-Size (25-74 rooms) ▾ | #2 95 reviews | — |
| Large (75-199 rooms) ▾ | #2 39 reviews | — |
| X-Large (200+ rooms) ▾ | #2 29 reviews | — |
By Property Type
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| Boutique ▾ | #2 107 reviews | — |
| Luxury ▾ | #2 86 reviews | — |
| Branded / Chain ▾ | #2 56 reviews | — |
| Extended Stay ▾ | #3 13 reviews | — |
By Region
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| North America ▾ | #1 138 reviews | — |
| Europe ▾ | #9 21 reviews | — |
| Asia Pacific ▾ | #4 15 reviews | — |
| Middle East ▾ | #2 5 reviews | — |
Choosing between The Guestbook: Cash Rewards Suite and Kumulos: Push Notifications hinges on your hotel’s core marketing needs. Both aim to boost guest engagement, but they do so with fundamentally different approaches—one focuses on rewarding loyalty to drive direct bookings, the other on real-time engagement via notifications. Your decision should reflect whether your hotel prioritizes increasing direct revenue or enhancing ongoing guest interaction.
The Guestbook has amassed a larger, more recent review base, with 175 reviews in the last six months, making its customer feedback more current and reliable. Kumulos, with no recent reviews and only a handful of documented case studies, offers limited recent validation. Do you want a proven, well-reviewed tool or an untested platform?
Both products target guest engagement but serve different strategic purposes. The Guestbook’s primary strength lies in increasing direct bookings through cashback rewards, loyalty programs, and detailed guest data insights—tools proven to reduce reliance on OTAs and improve profitability. Kumulos, on the other hand, is a mobile-centric engagement platform that excels in pushing targeted notifications, in-app messaging, and web notifications, mainly designed to keep guests engaged during their stay or pre/post-stay.
While The Guestbook’s reviews highlight a near-perfect 5/5 overall rating, ease of use, and strong customer support, Kumulos has no recent reviews or user scores to establish its market performance or hotel satisfaction. The Guestbook’s recent reviews reinforce its value in driving measurable revenue growth, whereas Kumulos’ lack of recent feedback makes its efficacy uncertain.
In essence, if your hotel needs to boost direct bookings and foster long-term loyalty, The Guestbook clearly outperforms. Conversely, if your goal is to increase app engagement or web interaction, Kumulos might be relevant—though the lack of recent validation weakens its position.
Edge: The Guestbook.
If your hotel needs to generate more direct revenue and build long-term guest loyalty, go with The Guestbook. Its cashback rewards, loyalty programs, and extensive guest data insights have been proven to increase conversions and revenue, especially with a recent review count of 175 in the past six months confirming high satisfaction.
For hotels seeking to maintain ongoing engagement through push notifications, web messaging, and in-app prompts, Kumulos could be suitable. However, without recent reviews or case studies, its impact remains unverified, and it’s less proven in delivering measurable ROI compared to The Guestbook.
In summary, choose The Guestbook if your focus is on boosting direct bookings and loyalty; opt for Kumulos if continuous app/web engagement is your priority. Your hotel’s strategic goals should drive this decision, but the current review data strongly favors The Guestbook.
Edge: The Guestbook.
The Guestbook boasts a high ease-of-use rating of 4.82/5, supported by detailed reviews praising its intuitive user interface and straightforward onboarding process. Users mention how seamlessly the platform integrates into their booking journeys and how both hotel staff and guests find it simple to navigate.
Kumulos, with no recent reviews or user ratings, provides limited data on usability. Its feature set appears extensive, but without current user feedback, it’s difficult to assess how intuitive or accessible the platform truly is.
Given the current data, The Guestbook offers a superior, well-validated user experience. Its recent reviews confirm that staff and guests find the platform straightforward, making implementation and daily use less burdensome.
Edge: The Guestbook.
The Guestbook offers 7 unique features designed specifically for guest rewards and data-driven marketing, including Parity Reports, Pop-up & Exit Intent Messages, Custom Segment Messaging, Messaging Analytics, Live Chat, an Analytics Dashboard, and Instant Redeemable Rewards. These tools directly support loyalty-building and revenue optimization.
Kumulos, meanwhile, provides core engagement features like push notifications, in-app messaging, web push, analytics, automation, and A/B testing. It lacks the tailored guest loyalty features that make The Guestbook stand out.
Given the feature count and relevance, The Guestbook’s offerings are more aligned with direct booking enhancement and guest loyalty, providing a decisive edge.
Edge: The Guestbook.
The Guestbook’s support and onboarding ratings are outstanding at 4.91/5 and 4.79/5 respectively, with reviews emphasizing quick responses and helpful guidance. Customers frequently mention how support teams assist in optimizing campaigns and resolving issues promptly.
Kumulos, with no recent reviews or explicit support ratings, offers no current validation of its customer service quality. Its support responsiveness and effectiveness remain unverified, especially in a competitive hotel tech landscape where reliable support is crucial.
Based on available data, The Guestbook’s support stands out as a key strength, providing confidence that your team will receive the assistance necessary for successful implementation and ongoing optimization.
Edge: The Guestbook.
The Guestbook’s recent reviews reflect a near-perfect 5/5 rating, with hotel segments including luxury, boutique, resorts, and independent hotels expressing high satisfaction. Users praise its ease of use, results-driven approach, and positive ROI, particularly emphasizing its ability to generate direct bookings and increase revenue.
Kumulos has no recent reviews or ratings, making it impossible to gauge user satisfaction. Without current hotel feedback, it cannot be considered a top-rated solution.
Given the strength of recent, positive reviews, The Guestbook clearly maintains higher hotel satisfaction levels.
Edge: The Guestbook.
The Guestbook’s pricing starts at $200 per month, with no mention of implementation fees or trial periods. Its transparent flat-rate model simplifies budgeting and planning.
Kumulos has no publicly available pricing details or trial information, which can make budgeting unpredictable. Its cost structure is unclear, and without transparent quotes, it’s difficult to assess value.
Considering clarity and known cost, The Guestbook offers a straightforward, predictable pricing model, making it easier for your hotel to justify investment.
Edge: The Guestbook.
Hotels that should consider The Guestbook:
Not ideal if:
In general, The Guestbook suits independent hotels, resorts, and boutique properties focused on direct booking growth and guest loyalty.
Kumulos suits hotels or brands prioritizing mobile and web user engagement, including:
Not ideal if:
Kumulos is best for hotels focused on digital engagement rather than direct revenue generation.
The Guestbook stands out as the more reliable, reviewed, and revenue-focused platform. Its proven track record, recent high ratings, and extensive features tailored for direct booking growth make it the clear choice for most hoteliers.
Kumulos offers a suite of engagement tools that could benefit properties with a heavy digital or app presence, but the absence of recent reviews and validation limits confidence. Its platform is better suited for ongoing user engagement rather than directly increasing revenue.
For a hotel prioritizing direct bookings, revenue, and guest loyalty, The Guestbook is the definitive choice. If your hotel’s strategy revolves around app engagement and real-time messaging, Kumulos might be considered—though it’s less proven in recent hotel reviews.
In conclusion, choose The Guestbook for a tested, high-rated solution with a solid ROI foundation. Kumulos could be a secondary option if your focus is purely on in-app and web engagement, but proceed cautiously given the lack of recent validation.
Direct Booking Tools 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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| Starting Price | From $200/mo | — |
According to HTR's product database, The Guestbook: Cash Rewards Suite and Kumulos - Push Notifications share 0 features. Here are the key differences — features one has that the other lacks.
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| Analytics dashboard | ||
| Custom Segment Messaging | ||
| Live Chat | ||
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| Parity Reports | ||
| Pop-up & Exit Intent Messages |
We analyzed 8 verified case studies to compare what hotels actually achieve with each platform across four key business objectives.
"The Guestbook has increased direct bookings for us over the years. They have always been flexible with custom needs to assist our property and our initiatives. The best part is y..."
No published case study for this goal yet.
"One of the greatest tools we incorporated in several years!"
No published case study for this goal yet.
What hoteliers love
The Guestbook's loyalty program is popular among guests, driving repeat stays and guest satisfaction. Users highlight its role in fostering long-term... The Guestbook's loyalty program is popular among guests, driving repeat stays and guest satisfaction. Users highlight its role in fostering long-term guest relationships and increasing customer engagement through cashback rewards.
Reviewers frequently mention The Guestbook's user-friendly interface, making it straightforward for both guests and hotel staff to use. This enhances... Reviewers frequently mention The Guestbook's user-friendly interface, making it straightforward for both guests and hotel staff to use. This enhances the booking experience, reflected in positive user feedback.
The program's impact on increasing revenue and demonstrating a strong return on investment is noted in several reviews. With decreased OTA commissions... The program's impact on increasing revenue and demonstrating a strong return on investment is noted in several reviews. With decreased OTA commissions and enhanced profitability, users recognize The Guestbook as a valuable investment.
Where hoteliers push back
A few users note that the product could be improved by expanding its email marketing capabilities, requesting features like the ability to send promot... A few users note that the product could be improved by expanding its email marketing capabilities, requesting features like the ability to send promotions to all members, not just those who signed up through a particular hotel.
Unique capabilities
Where the ratings diverge most
It depends on your requirements. The Guestbook: Cash Rewards Suite and Kumulos - Push Notifications share many core Direct Booking Tools features, but each has unique capabilities. The Guestbook: Cash Rewards Suite offers 36 verified integration partners, while Kumulos - Push Notifications offers 2. Review the feature comparison above to see where they differ before switching.
Small hotels should prioritize ease of use and fast onboarding. The Guestbook: Cash Rewards Suite leads in ease of use at 4.8/5 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.
The Guestbook: Cash Rewards Suite: No. Kumulos - Push Notifications: No. Neither product currently offers a free tier. Most Direct Booking Tools 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. The Guestbook has an HT Score of 95 and Kumulos 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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