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Rengoku

Fail

Buyers convert on only 0.9% of searches, so Rengoku is a Fail.

Flapen Score
39
39 / 100
Ranks 9,284 of 11,240 Home & Kitchen niches · −10 vs the category median of 49
Market size
$127K/yr417K searches / yr
90-day growth
-15.1%search demand this quarter
Competition
72%top-5 click share · 10 brands · 138 sellers

Flapen Score

Rengoku against its category

The dotted line is the Home & Kitchen average. Past it, Rengoku is stronger. Inside it, weaker.

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

Market

The Rengoku market on Amazon at a glance

Shoppers on Amazon United States searched for Rengoku 417K times last year and spent an estimated $127K. The top 5 brands take 83% of clicks. Demand peaks in Aug–Sep–Nov–Dec. Flapen scores it 39 out of 100, a Fail.

01 · Demand

An estimated 0.9% of those searches ended in a purchase.

Shoppers searched for this 417K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 0.9% of those searches ended in a purchase. Searches in the last 90 days moved -15.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $127K a year.

Searches, last 12 months
417K
Growth, 90 days vs prior 90
-15.1%
Conversion, latest week
0.9%
Market size, estimated
$127Ka year
Peak month
December4.1× the quietest month
Top search term
rengoku196K searches a year

02 · Price

A sale here is worth $33.57.

Listings sell for $33.57 on average, from $10.03 to $122.84. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 100 to 250 of them. At $33.57 that is $3K to $8K a year per listing.

Average price
$33.57inside the $15 to $100 sweet spot
Price range
$10.03–$122.84
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
5K–6K
Units per listing a year
100–250
Revenue per listing a year
$3K–$8K
Returns
1.2%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

14% of listings pay for placement with sponsored ads. 79% ship with Prime. On an average day, 10.8% of listings are out of stock. The average listing ranks #4,245 within Wearable Blankets. It carries 527 reviews at 4.66 stars, so a new listing needs social proof before a better product.

Sponsored listings
14%
Prime listings
79%
Out of stock, average day
10.8%
Average rank
#4,245in Wearable Blankets
Average rating
4.66 starsAmazon United States average 4.42 stars
Average reviews
527per listing
Listings tracked
14

04 · Newcomers

2 of last year's 2 launches cleared the first-year sales bar.

2 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 34 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
2
Successful launches
2Amazon's first-year sales bar
Average brand age
34 months

Products

Top Rengoku 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 72% of clicks. A locked shelf that new listings rarely crack.

Brands

10 falling

Sellers

138

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

72%

Top 20: 100%

Open market

12%

  • Brand 140%
  • Brand 216%
  • Brand 311%
  • Brand 411%
  • Brand 55%
  • Brand 65%
  • Open — no brand owns it (4 brands, 12%)

Demand

Rengoku search demand

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

20K15KHoliday '24Prime Day '25Spike '25Holiday '25SepDecMarJunAugNovMarMay

Peak months: Aug, Sep, Nov, Dec · busiest ÷ quietest = 4.1×

Search terms

Top Rengoku search terms shoppers use

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

  • rengoku196K/yr
  • rengoku figure89K/yr
  • rengoku funko pop37K/yr
  • demon slayer rengoku34K/yr
  • kyojuro rengoku19K/yr
  • rengoku merch12K/yr
  • rengoku action figure9K/yr
  • demon slayer funko pop rengoku4K/yr
  • funko rengoku3K/yr
  • rengoku funko5K/yr

Reviews and returns

What reviews say buyers love and hate about Rengoku

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

14%of positive reviews mention “Fun/Entertainment Experience”
27%of negative reviews mention “Quality-Overall”
1.2%of orders come back
“Poor quality”
A buyer, on “Quality-Overall”27% 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.

20 topics

NegativePositive

FAQ

Common Rengoku questions

Answered from the same tracked data.