How does RateBud detect fake Amazon reviews?

RateBud uses advanced AI to analyze review patterns, language authenticity, timing anomalies, and content quality. We examine reviewer behavior, review velocity, and linguistic markers to detect fake reviews with high accuracy.

What does the trust score mean?

The trust score is a percentage from 0-100% indicating review authenticity. This product scored 94% (Grade A). Scores above 80% indicate highly trustworthy reviews, 60-79% are generally reliable, and below 60% suggest caution.

Is RateBud's review analysis free?

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✅ Uni-Ball Signo UM-153 Gel Ink Rollerball Pen, 1.0mm, Broad Point, White, Black and Silver Set of 3 Review Analysis

Name: Uni-Ball Signo UM-153 Gel Ink Rollerball Pen, 1.0mm, Broad Point, White, Black and Silver Set of 3
Brand: Uni-Ball
SKU: B00OAVVLBM
Price: 6.6 USD
Availability: InStock
Rating: 4.6 (591 reviews)

Analysis Summary

Based on the analysis, this Uni-Ball Signo UM-153 Gel Ink Rollerball Pen has received overwhelmingly positive reviews, with a rating of 4.6/5 from 10 reviewers. The high scores for Review Content Quality, Review Velocity, and Reviewer Credibility suggest that the reviews are genuine, timely, and from credible sources, making this product a trustworthy choice. However, the relatively lower score for Seller Reputation (78/100) indicates that some customers may have had issues with the seller, which is a concern worth considering.

Review Timeline

Review patterns over time - spikes may indicate manipulation

95%

Velocity Score

Spikes

None found

Peak

Reviews/mo

Timeline

Months

Pattern Analysis

Good: Review pattern appears natural with steady growth. No suspicious spikes that might indicate review manipulation.

Keyword Analysis

Common phrases and their authenticity patterns

91%

Authenticity

great(5)good(8)highly recommend(11)

Positive

Natural phrases

Critical

Genuine concerns

Suspicious

Generic phrases

Language Authenticity

Vocabulary Diversity100%

Natural Language Flow78%

Unique Phrasing97%

Good: Language patterns appear natural with good diversity. Reviews use varied vocabulary and authentic expressions.

Recommendation

✅ Recommended

Analysis Date

January 2, 2026

Total Reviews

591 reviews analyzed

Understanding This Trust Score

Uni-Ball Signo UM-153 Gel Ink Rollerball Pen, 1.0mm, Broad P... received a Grade A with a trust score of 94/100. This product has earned our highest trust rating. The review patterns show authentic customer feedback with natural language variation, consistent timing, and verified purchases. You can shop with confidence.

What This Means:

•Reviews show natural language diversity
•No suspicious timing patterns detected
•High percentage of verified purchases
•Review velocity matches expected sales patterns

What Reviewers Are Saying

Based on our analysis of customer reviews for Uni-Ball Signo UM-153 Gel Ink Rollerball Pen, 1.0m..., here are the most common themes and opinions shared by verified buyers:

✓ Commonly Praised:

great (5x)good (8x)highly recommend (11x)

Overall sentiment: Based on the analysis, this Uni-Ball Signo UM-153 Gel Ink Rollerball Pen has received overwhelmingly positive reviews, with a rating of 4.6/5 from 10 reviewers. The high scores for Review Content Quality, Review Velocity, and Reviewer Credibility suggest that the reviews are genuine, timely, and from credible sources, making this product a trustworthy choice. However, the relatively lower score for Seller Reputation (78/100) indicates that some customers may have had issues with the seller, which is a concern worth considering.

Frequently Asked Questions

Are the reviews for Uni-Ball Signo UM-153 Gel Ink Rollerball... real?

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Based on our AI analysis, approximately 94% of reviews appear authentic, while 6% show patterns consistent with potentially fake or incentivized reviews. Overall, you can trust most reviews for this product.

How does RateBud detect fake reviews?

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Our AI analyzes multiple factors including review timing patterns, language similarity, reviewer history, and purchase verification. For this product, we analyzed 591 reviews to calculate the trust score.

Should I buy Uni-Ball Signo UM-153 Gel Ink Rollerball...?

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Based on our analysis, this product has trustworthy reviews and appears to be a safe purchase. The A grade indicates excellent review authenticity.

Shopping Tips for [object Object]

This product has 591 reviews with a Grade A trust score. Here's what to keep in mind:

💡Always prioritize verified purchase reviews over unverified ones
💡Look for detailed reviews that mention specific pros and cons
💡Be cautious of products with sudden spikes in positive reviews

Ready to make your purchase?

Based on our analysis, you can make an informed decision. Click below to purchase this product on Amazon.

✨ Premium Quality Product

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