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Wonder Shell

Fail

The top 5 brands take 100% of clicks, so Wonder Shell is a Fail.

Flapen Score
39
39 / 100
Ranks 3,439 of 3,978 Pet Supplies niches · −12 vs the category median of 51
Market size
$75K/yr29K searches / yr
90-day growth
-14.4%search demand this quarter
Competition
95%top-5 click share · 3 brands · 28 sellers

Flapen Score

Wonder Shell against its category

The dotted line is the Pet Supplies average. Past it, Wonder Shell is stronger. Inside it, weaker.

39Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Wonder Shell market on Amazon at a glance

Shoppers on Amazon United States searched for Wonder Shell 29K times last year and spent an estimated $75K. All 3 brands take every click. Demand peaks in Nov. Flapen scores it 39 out of 100, a Fail.

01 · Demand

An estimated 16.8% of those searches ended in a purchase.

Shoppers searched for this 29K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 16.8% of those searches ended in a purchase. Searches in the last 90 days moved -14.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $75K a year.

Searches, last 12 months
29K
Growth, 90 days vs prior 90
-14.4%
Conversion, latest week
16.8%
Market size, estimated
$75Ka year
Peak month
November1.6× the quietest month
Top search term
wonder shell13K searches a year

02 · Price

A sale here is worth $15.37.

Listings sell for $15.37 on average, from $6.16 to $36.77. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 500 to 750 of them. At $15.37 that is $8K to $12K a year per listing.

Average price
$15.37inside the $15 to $100 sweet spot
Price range
$6.16–$36.77
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
4K–5K
Units per listing a year
500–750
Revenue per listing a year
$8K–$12K
Returns
0.1%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

86% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #163 within Fish & Aquatic Pets. It carries 793 reviews at 4.67 stars, so a new listing needs social proof before a better product.

Sponsored listings
86%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#163in Fish & Aquatic Pets
Average rating
4.67 starsAmazon United States average 4.42 stars
Average reviews
793per listing
Listings tracked
7

04 · Newcomers

Brands here are established.

The brands on the shelf have sold for 69 months on average, so the names here are established.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
69 months

Products

Top Wonder Shell products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take 95% of clicks. A locked shelf that new listings rarely crack.

Brands

3 falling

Sellers

28

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

95%

Top 20: 100%

Open market

0%

  • Brand 179%
  • Brand 218%
  • Brand 33%

Demand

Wonder Shell search demand

Weekly searches over the year, seasonality beneath. Pick a range.

800600Prime Day '25Spike '25Black Friday '25Spike '26AprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Nov · busiest ÷ quietest = 1.6×

Search terms

Top Wonder Shell search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • wonder shell13K/yr
  • wonder shells aquarium6K/yr
  • wondershell3K/yr
  • wondershell aquarium2K/yr
  • weco4K/yr

Reviews and returns

What reviews say buyers love and hate about Wonder Shell

We read the reviews and the return reasons for every product selling here.

19%of positive reviews mention “Quality-Overall”
33%of negative reviews mention “Functionality-Overall”
0.1%of orders come back
“These don't work”
A buyer, on “Functionality-Overall”33% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

15 topics

NegativePositive

FAQ

Common Wonder Shell questions

Answered from the same tracked data.