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InnoGear Essential Oil Diffuser, Upgraded Diffusers for Essential Oils Aromatherapy Diffuser Cool...
More product info From InnoGear

Amazon Reviews for  InnoGear Essential Oil Diffuser, Upgraded Diffusers for Essential Oils Aromatherapy Diffuser Cool Mist Humidifier with 7 Colors Lights 2 Mist Mode Waterless Auto off for Home Office Baby, Basic White
Rating:
79,529 Ratings
16,417 Reviews
("Ratings" vs. "Reviews")
19% of potentially unnatural reviews removed (why?)
Adjusted:
13,231 Reviews




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Report Info:
Last Updated: May 2, 2021
Show Report History
Note: While Amazon.com claims 79,529 Ratings, we counted 16,417 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

Fail Overall Grade
FAIL Deleted Reviews
FAIL Rating Trend
FAIL Suspicious Reviewers
FAIL Phrase Repetition
FAIL Overlapping Review History
PASS Unverified Purchases
PASS Word Count Comparison
PASS Reviewer Participation
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews

Most Trusted Reviews

Good company and nice diffuser. [Go to full review]
Apr 26, 2017      
59% TRUST
  • Verified Purchaser
  • Contains repetitive phrases (show)
  • Critical Reviewer (avg. rating: 3.5)


Least Trusted Reviews

nice diffuser for a good price. does not take up ... [Go to full review]
Jul 24, 2017      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Jul 24, 2017)
  • Overlapping Review History: reviewed 1 of 9 top products
  • Easy Grader (avg. rating: 4.5)


Analysis Details

Fail Deleted Reviews

We discovered a total of 7,276 deleted Reviews for this product, with an average rating of 4.3. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.

There are a few limitations to keep in mind regarding the Deleted Reviews test:
  1. We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
  2. We have no information on reviews that were never published in the first place.
  3. We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Read more about our Deleted Reviews test.

4.3 average rating of deleted reviews

4.3


Show distribution of deleted reviews

Fail Rating Trend

  • 16%
  • Created over 120 days

We counted 16,417 reviews for this product over the span of 2,104 days, an average of 7.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 18 or fewer reviews on any given day.

However, we see the following 120 days exceeding this threshold:In total, we found that 2,665 reviews were created on just 120 days. The reviews on these high volume days have rated this product an average of 4.4 while reviews from other days have rated this product an average of 4.2. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from reviews created on high volume days

from reviews created on normal volume days


4.4
4.2


Read more about our Rating Trend test.

Fail Suspicious Reviewers

Never-Verified Reviewers


114 of the 16,417 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 3.3 while the reviewers who have written at least one verified purchase review rated this product an average of 4.3. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from never-verified reviewers

from reviewers with at least one verified purchase review


3.3
4.3


Take-Back Reviewers


5,498 of the 16,417 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 4.4 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 4.2. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from take-back reviewers

from reviewers without previously deleted reviews


4.4
4.2


Single-Day Reviewers


535 of the 16,417 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.5 while all other reviewers rated this product an average of 4.2. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from single-day reviewers

from non-single-day reviewers


4.5
4.2


Read more about our Suspicious Reviewers test.

Fail Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.

Common Phrases in Titles:
214 reviews
(2.3/5)
196 reviews
(4.5/5)


82 of the 16,417 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 2.8 while reviews without substantial repetitive phrases rated this product an average of 4.3. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


2.8
4.3


Read more about our Phrase Repetition test.

Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

Does not include products
from the same brand


1,787 of the 16,417 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.6 while the reviewers who have a more unique product review history rated this product an average of 4.2. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.6
4.2


Read more about our Overlapping Review History test.

Pass Unverified Purchases

676 of the 16,417 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from unverified purchasers

from verified purchases


3.7
4.3


Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.

Pass Word Count Comparison

  • 0%
  • Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.

Pass Reviewer Participation

  • 0%
  • From reviewers with an overrepresented participation
We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.

Pass Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4.2, while the average ease score for reviewers in this category is 4.3.

4.2 Product's Average Ease Score

4.3 Category's Average Ease Score


4.2
4.3


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


259 of the 16,417 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from Brand Repeaters

from Non-Repeaters


4.4
4.2


Read more about our Brand Repeats test.

Pass Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.


4 of the 16,417 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from incentivized reviews

from non-incentivized reviews


5.0
4.3


Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.