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 30 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:
HotelFlex shines .
Plusgrade shines in ease of use and customer support , with exclusive features like Multi-Channel Delivery (Email, SMS, WhatsApp, Chat).
Side-by-side ratings based on 30 verified hotelier reviews on HTR.
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| Value for Money |
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| Starting Price | Contact sales | From $400/mo |
| Verified Reviews | 0 | 30 |
After analyzing 30 verified reviews, HotelFlex users most value its , while Plusgrade users highlight increased revenue, customer experience, automated upselling. Click any theme to see what reviewers say.
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Increased Revenue
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Customer Experience
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Automated Upselling
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Additional Upselling Options
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Manual Upgrades and Errors
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User Interface
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Integration with PMS and Other Systems
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How each product ranks among Upselling 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) | #21 0 reviews | #16 2 reviews |
| Mid-Size (25-74 rooms) ▾ | #26 0 reviews | #12 16 reviews |
| Large (75-199 rooms) ▾ | #20 0 reviews | #10 9 reviews |
| X-Large (200+ rooms) | #24 0 reviews | #10 3 reviews |
By Property Type
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| Boutique ▾ | #22 0 reviews | #12 14 reviews |
| Luxury ▾ | #23 0 reviews | #14 15 reviews |
| Branded / Chain ▾ | #25 0 reviews | #14 7 reviews |
| Extended Stay | #21 0 reviews | #17 1 reviews |
By Region
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| North America | — | #12 4 reviews |
| Europe ▾ | #22 0 reviews | #15 12 reviews |
| Asia Pacific | #13 0 reviews | — |
| Middle East ▾ | #10 0 reviews | #4 10 reviews |
Choosing the right upselling software for your hotel can significantly impact revenue and guest satisfaction. HotelFlex by HotelFlex and Plusgrade by Plusgrade both aim to maximize your inventory and boost ancillary revenue, but they do so with different approaches and features. HotelFlex focuses on inventory management, particularly leveraging unsold rooms, while Plusgrade emphasizes automated upselling through personalized offers. Your decision hinges on your hotel’s specific needs—are you after a straightforward inventory solution or a comprehensive upsell platform?
While HotelFlex offers a simple, targeted tool, Plusgrade brings a broad feature set and a larger market presence. Considering recent review activity and overall ratings, Plusgrade's more extensive customer feedback makes it the more reliable choice in today’s market. Does your property need a dedicated upselling engine with rich features, or a specialized inventory management tool?
HotelFlex is designed to optimize unsold inventory by filling rooms with early arrivals or late departures, aiming to increase revenue from otherwise vacant space. However, it lacks the more sophisticated upselling features that Plusgrade provides, such as segmentation, multi-channel delivery, and offer testing, which are critical for dynamic revenue management. Plusgrade, with its 29 reviews and a high NPS score of 9.24, demonstrates a proven track record of elevating revenue and guest experience across diverse hotel segments.
Are you looking for a simple solution that maximizes last-minute occupancy, or a more comprehensive upselling platform that targets multiple stages of the guest journey? While HotelFlex can help boost occupancy, Plusgrade’s focus on upsell personalization and automation makes it a more versatile tool for revenue growth. Do you prioritize filling unsold rooms or enhancing guest upgrades and services?
If your hotel needs a straightforward inventory management solution to target unsold rooms and optimize occupancy, HotelFlex’s approach could be enough. It’s ideal for properties seeking a simple way to use vacant rooms for early arrivals or late departures. Conversely, if your hotel aims to increase ancillary revenue through personalized offers, automated upselling, and multi-channel campaigns, Plusgrade is the better fit, especially given its 16 verified integrations and broad feature set.
For properties that require minimal manual effort and want to boost revenue with automated offers, Plusgrade’s platform, with its extensive capabilities and recent positive reviews, is the clear choice. If your focus is on maximizing revenue from upselling rather than just inventory, go with Plusgrade. If occupancy optimization is your primary goal, HotelFlex might suffice, but it’s less comprehensive.
HotelFlex’s interface and onboarding process rate very low or unreviewed, making it impossible to gauge ease of use confidently. In contrast, Plusgrade scores 4.75 out of 5 for ease of use, with users praising its intuitive UI, fast setup, and seamless integration process. Recent reviews highlight that Plusgrade’s platform is straightforward, with many users noting how quickly their teams adopted and benefitted from it.
Edge: Plusgrade.
HotelFlex offers two core features: room extension management and inventory optimization. In contrast, Plusgrade boasts eight unique features, including segmentation, multi-channel delivery, dynamic pricing, offer templates, multi-property dashboards, offer orchestration, data security, and A/B testing. These capabilities allow hoteliers to craft targeted campaigns, test strategies, and optimize offers across multiple channels.
Plusgrade’s richer feature set — especially its segmentation and offer experimentation tools — provides a significant advantage for hotels looking to customize and refine their upselling strategies. For most properties, the additional features in Plusgrade clearly make it the more capable platform.
Edge: Plusgrade.
HotelFlex’s customer support ratings are unavailable, making it impossible to gauge. Meanwhile, Plusgrade scores 4.79 out of 5 for support, with recent reviews describing their team as prompt, knowledgeable, and effective. Users commend how Plusgrade’s support team helps resolve issues quickly, ensuring smooth implementation and ongoing success.
Given the recent reviews and high ratings, Plusgrade’s support offers greater confidence. If support quality is a priority, Plusgrade’s customer service is the clear winner.
Edge: Plusgrade.
HotelFlex has three verified integration partners, including Mews, Oracle Hospitality, and SiteMinder. In comparison, Plusgrade integrates with 16 verified partners, including major PMS and booking engine providers like apaleo GmbH, RMS, and Stayntouch, as well as common partners like SiteMinder and Oracle Hospitality.
The broader integration ecosystem makes Plusgrade more adaptable to existing hotel systems, enabling smoother deployment and operation. For comprehensive connectivity, Plusgrade’s extensive partner network gives it a distinct edge.
Edge: Plusgrade.
Review data shows HotelFlex has no recent reviews or ratings, making it impossible to assess user satisfaction. In contrast, Plusgrade’s 29 reviews include a 5/5 rating from users across hotel segments, with recent positive feedback emphasizing increased revenue and ease of use.
Furthermore, the high NPS score of 9.24 reflects strong hotel satisfaction. Given the volume and recency of reviews, Plusgrade clearly enjoys higher hotel ratings today.
Edge: Plusgrade.
HotelFlex’s pricing details are unavailable, suggesting it may follow a bespoke or less transparent pricing model. Meanwhile, Plusgrade charges a base fee of $400 per month, with no additional implementation or monthly per-room costs.
While the total cost may seem high for smaller properties, Plusgrade’s transparent pricing simplifies budgeting for most hotels. The lack of detailed hotelFlex pricing limits direct comparison but suggests Plusgrade is likely the more straightforward investment.
Not ideal if:
Not ideal if:
HotelFlex offers a focused solution for maximizing unsold inventory by extending stays for early arrivals or late departures. Its simplicity appeals to properties that want minimal effort to fill vacant rooms, but it lacks the advanced upselling features that drive higher revenue per guest.
Plusgrade, with its 29 recent reviews and a high satisfaction score, provides a comprehensive platform that covers upselling at multiple guest journey points. Its broader feature set, proven revenue uplift, and robust integrations make it the superior choice for most hotels looking to grow ancillary revenue.
If your hotel needs a straightforward inventory tool, HotelFlex may suffice. But for most properties eager to enhance revenue through personalized, automated upselling, Plusgrade is the clear leader in today’s market.
According to HTR's product database, HotelFlex and Plusgrade share 2 features. Here are the key differences — features one has that the other lacks.
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| Dynamic Upgrade Pricing | ||
| Multi-Channel Delivery (Email, SMS, WhatsApp, Chat) | ||
| Multi-Property/Chain Dashboard | ||
| Offer Orchestration (Booking → Pre-Arrival → Arrival → In-Stay → Post-Stay) | ||
| Offer Templates Library | ||
| Segmentation |
We analyzed 2 verified case studies to compare what hotels actually achieve with each platform across four key business objectives.
No published case study for this goal yet.
"Guests can tweak and adjust their trip to exactly what they’re looking for. We’re helping them discover options they might not have known about."
No published case study for this goal yet.
"I’ve worked with plenty of other systems, and none of them do what Plusgrade does. I would definitely recommend it to other boutique hotels. It opens up new ways to connect with gu..."
What hoteliers love
Hoteliers report significant revenue gains through UpStay, with conversions from room upgrades and additional services like spa treatments. This helps... Hoteliers report significant revenue gains through UpStay, with conversions from room upgrades and additional services like spa treatments. This helps in boosting RevPAR and making better use of unsold inventory during both high and low demand periods.
The platform enhances guest experience by providing attractive pre-arrival upgrade offers. Guests appreciate the bidding system and personalized email... The platform enhances guest experience by providing attractive pre-arrival upgrade offers. Guests appreciate the bidding system and personalized emails, which make the upgrade process user-friendly and engaging, often resulting in higher satisfaction rates.
UpStay's fully automated system allows hotels to generate ancillary revenue with minimal manual intervention. This automation provides consistent perf... UpStay's fully automated system allows hotels to generate ancillary revenue with minimal manual intervention. This automation provides consistent performance in increasing upgrade conversions, even during periods of lower occupancy.
Where hoteliers push back
Users reported issues with manual upgrades, citing system errors and delays in receiving feedback. This has occasionally led to dissatisfaction with t... Users reported issues with manual upgrades, citing system errors and delays in receiving feedback. This has occasionally led to dissatisfaction with the service provided.
Some users find the interface limiting and have suggested improvements, such as better tracking of guest emails for future campaigns and more intuitiv... Some users find the interface limiting and have suggested improvements, such as better tracking of guest emails for future campaigns and more intuitive changes to the setup.
Ranks higher for
Unique capabilities
Where the ratings diverge most
It depends on your requirements. HotelFlex and Plusgrade share many core Upselling Software features, but each has unique capabilities. HotelFlex offers 3 verified integration partners, while Plusgrade offers 16. Review the feature comparison above to see where they differ before switching.
Small hotels should prioritize ease of use and fast onboarding. Plusgrade 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.
HotelFlex: No. Plusgrade: No. Neither product currently offers a free tier. Most Upselling 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. HotelFlex has an HT Score of 0 and Plusgrade has 72. 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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