Know Exactly
What Your Customers Are
Complaining About

Sentor reads thousands of reviews so you don't have to. You get a clear picture of the real problems, ranked by impact, so you know exactly what to fix.

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Stop Guessing. Start Knowing.

Most feedback tools tell you customers are unhappy. Sentor tells you why. Is it the staff? The delivery? The pricing? And it shows you which problems matter most.

Customer Reviews

Customer review from Sarah M.
Sarah M. @sarahm_travels

Just stayed at @GrandPlazaHotel ! Amazing room quality and perfect location in downtown. Staff service was exceptional - they upgraded us for free! Great value for money considering everything included.

Customer review from Mike Chen
Mike Chen @mikechen_biz

Business trip at @CityInnSuites . Decent room quality and good location near airport. However, WiFi was painfully slow and breakfast quality was disappointing. Cleanliness could be better too.

Customer review from Emma Wilson
Emma Wilson @emmaw_foodie

Weekend getaway at @GrandPlazaHotel 💕 Incredible amenities - spa, pool, gym all top-notch! Food quality exceeded expectations, especially the breakfast buffet. Lightning-fast WiFi throughout. Worth every penny!

Customer review from James Rodriguez
James Rodriguez @jamesrod_travel

Stayed at @CityInnSuites for conference. Great value for money and helpful staff at reception. Basic amenities but sufficient. Room cleanliness was questionable - found hair in bathroom. Mixed experience overall.

Customer review from Lisa Park
Lisa Park @lisapark_luxury

Anniversary celebration at @GrandPlazaHotel 🥂 Impeccable cleanliness everywhere, outstanding staff service made us feel special. Premium amenities and excellent food quality. This is luxury done right! 🌟

1 No window with fresh air
2 Overpriced for poor quality
3 Dirty room with unpleasant odor
4 Noise from neighboring rooms
5 Staff was uninterested and rude
6 Low water pressure shower

What Sentor tells you

Automatically spots which specific topics customers complain about most

Groups similar complaints together so patterns become visible instantly

Shows how you compare to competitors, topic by topic

See Exactly What's Being Complained About

Sentor automatically clusters customer feedback into clear topics. Each one is named and ranked so you can see what's hurting your scores at a glance.

Which Issues Come Up Most?

See how complaint topics are distributed across your business or between two competitors. The bigger the bar, the more customers are talking about it.

How Complaints Are Connected

Some issues are related. Customers who complain about cleanliness often mention staff too. This view shows you which problems cluster together.

Which Issues Overlap?

A heatmap showing which complaint areas tend to appear together. It helps you find the hidden root causes across your feedback.

All Your Feedback in One View

A visual map of all your customer feedback clusters. Each dot is a group of similar complaints. Explore how they relate to each other.

Every Business Has Blind Spots. Sentor Finds Them.

Here's how businesses in different industries use Sentor to find and fix the issues customers actually care about.

Retail

Online Retailer

Challenge: Customers were leaving and ratings were dropping. But overall reviews were 3.8 stars, not obviously terrible.

What Sentor found:

  • Sizing complaints were causing 40% of returns
  • Delivery time complaints spiked every Friday
  • Packaging was praised, not the problem
Hospitality & Services

Service Business

Challenge: Despite 4-star ratings, repeat visits had dropped by 20%. Traditional analysis showed only mixed sentiment.

What Sentor found:

  • Wait times were the top complaint, not the food
  • Staff friendliness score had dropped 30% month-on-month
  • Value for money perception had actually improved
Travel & Hospitality

Booking Platform

Challenge: Manually writing pros and cons for thousands of hotel listings wasn't scalable.

What Sentor found:

  • Auto-generated pros: location, cleanliness, staff
  • Auto-generated cons: noise, wifi, breakfast quality
  • Updated daily as new reviews arrive
Healthcare

Healthcare Provider

Challenge: Thousands of patient feedback forms, with no way to spot systemic issues.

What Sentor found:

  • Appointment scheduling was the top complaint, not the medical care itself
  • Wait times were manageable, but communication around them wasn't
  • Staff friendliness scores were high and could be used in marketing
Politics

Political Campaign

Challenge: A campaign needed to know which policy issues voters actually cared about, not just the party lines.

What Sentor found:

  • Housing was the rising concern, not healthcare
  • Climate sentiment was generational and needed different messaging
  • Voter anxieties around jobs were being ignored
Financial Services

Trading Platform

Challenge: Traders were churning after 90 days. Exit surveys were too vague to act on.

What Sentor found:

  • Mobile app crashes were the top frustration, not pricing
  • Research tools were loved and needed more visibility
  • Customer support response times were consistently mentioned

What Makes
Sentor Different

Most tools tell you customers are happy or unhappy. Sentor goes further. It tells you which specific topics they're unhappy about, how serious each problem is, and what to prioritize.

Issue-by-Issue
Breakdown

Instead of a single score, Sentor breaks feedback down by topic: staff, delivery, packaging, price. So you know exactly where the problem is.

Fast Results,
No Setup

Upload your reviews or connect via API. Sentor processes your feedback in seconds and gives you a prioritized list of issues, ready to share with your team.

Self Evaluate

Understand your own business through the eyes of your customers. See which areas get praise, which generate complaints, and what to tackle first.

Brand Comparisons

Compare your reputation to competitors, topic by topic. See where you're winning and where they have the edge, based on real customer language.

Negativity/Positivity Clustering

Group similar complaints together automatically. Instead of reading hundreds of reviews, you see the top issues with how many customers mentioned each one.

Enterprise Security & Scalability

Your customer data stays yours. GDPR compliant, AES-256 encrypted, and designed for European privacy standards with no data shared between clients.

Global Reporting

Generate clear PDF or HTML reports in Dutch and English, ready to share with your team or board without any extra work.

Feature Showcase Feature Showcase

Built for the Way You Work

Whether you upload a CSV file or connect via API, Sentor fits your workflow, not the other way around.

Enterprises

Handle millions of reviews across products, regions, and brands. Integrate directly into your data pipeline and get results your teams can actually use.

  • RESTful API & SDKs
  • Auto-scaling infrastructure
  • Issue-level detail
  • MCP & Agent ready
Learn More

SMBs

Upload a file. Get a clear breakdown of what customers are saying. No technical knowledge needed. Results in minutes, not weeks.

  • One-click analysis
  • Complaint clustering
  • Competitor benchmarking
  • Clear visual reports
Learn More

Startups

Know instantly whether your product changes are working or creating new problems. Stop guessing and start shipping with confidence.

  • Fast prototyping
  • Rapid validation
  • Data-driven pitch
  • Built to scale
Learn More

Researchers

Get clean, structured data exports: topic labels, sentiment scores, and confidence levels. Perfect for research papers, models, and reproducible experiments.

  • Topic precision engine
  • Configurable clustering
  • Multilingual analysis
  • Clean data exports
Learn More

See Sentor in Action

Watch how Sentor turns raw customer feedback into clear, actionable priorities.

Customer Reviews

Find out which product features customers love and which are silently driving returns.

Social Media Mentions

Track which issues are trending in real-time before they become a PR problem.

Support Tickets

Find the root cause of your support load and fix the issue, not just the ticket.

Survey Responses

Turn open-ended responses into structured, ranked feedback you can actually present.

Find Out What Your Customers Are Really Saying

Start free. No credit card needed. See your first results in minutes.