Is hobonichi cousin cover profitable to sell on Amazon United States?

The niche generates $229K/yr across 45 tracked products. 1 of 14 products launched in the last 360 days are still selling. 90-day search growth is -53.2%. Flapen's verdict: Skip it (44/100).

How competitive is the hobonichi cousin cover niche?

14 brands and 27 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 81% of demand.

What do buyers complain about in hobonichi cousin cover?

Top complaints mined from reviews: Size-Overall, Material Quality, Durability. The return rate is 6.4% — above our launch gate.

When does demand for hobonichi cousin cover peak?

Demand peaks in Jan–Sep–Nov–Dec; the busiest month runs 5.2× the quietest.

What does it cost to enter the hobonichi cousin cover niche?

Listings span $6.86–$86.61; the average listing price is $37.52 (sweet spot $15–$100). The average incumbent carries 150 reviews — the moat a new listing must climb.

hobonichi cousin cover

Skip it

Soft demand (-53.2% this quarter) — this niche doesn't clear our bar today.

Avg price

Incredible$37.52

avg listing price — sweet spot $15–$100

Review moat

Great149.96

avg incumbent reviews — the moat a new listing must climb

Price range

Great$6.86–$86.61

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Great37%

top-5 click share — an open shelf

Market size

Okay$229K

$229K/yr · 253K searches

Brand share

Okay81%

top-5 brand share — brands hold most of the demand

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Conversion

Okay2.4%

search→purchase rate — share of searches ending in a sale

Returns

Bad6.4%

return rate — above 5% kills the launch gate

Growth

Bad-53.2%

90-day search growth — must beat 0% to launch

Signals High Returns

According to Flapen's Amazon United States niche tracking, hobonichi cousin cover is a $229K/yr Amazon United States market (253K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Jan–Sep–Nov–Dec. Verdict: Skip it — 44/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

hobonichi cousin cover market data

Units sold / yr: 4K–5K; avg 0–100/product
Revenue / yr: $150K–$188K; units × avg price
Conversion rate: 2.4%
Avg BSR: #1,433
Page quality: 0%
Prime: 100%
Sponsored: 53%
Out of stock: 16.3%
Avg brand age: 33 months
Avg seller age: 170 days

Competition & brand share

Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.

Brands

14 rising

Sellers

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

37%

Top 20: 76%

Open market

15%

ほぼ日48%
DILVREWA16%
Moterm7%
Generic5%
Fromthenon5%
Ox Knight4%
Open — no brand owns it (8 brands, 15%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -53.2% search growth over the last 90 days.

Peak months: Jan, Sep, Nov, Dec · busiest ÷ quietest = 5.2×

Open Trend

Top hobonichi cousin cover search terms

hobonichi cousin cover97K/yr -55.5%2.7% conv.
hobonichi a5 cover78K/yr -47.6%1.6% conv.
hobonichi cover a521K/yr -55.6%1.4% conv.
a5 hobonichi cover14K/yr -43.5%1.8% conv.
hobonichi cousin cover a521K/yr -64.4%2.0% conv.
hobonichi cousin a5 cover8K/yr -47.9%2.1% conv.
hobonichi techo cousin cover10K/yr -69.1%3.3% conv.
hobonichi techo a5 cover5K/yr -37.1%2.7% conv.

All search terms

Top hobonichi cousin cover products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

A5 Clear Planner Cover Fits for Hobonichi Techo Cousin 2026 A5 Compatible with Midori Protector for Stalogy Notebooks (1-pack)

DILVREWA$7.044.4★53 rev

Hobonichi Techo Cousin Cover [A5 Cover Only] Colors: Atelier Sky

ほぼ日$42.454.7★54 rev

Hobonichi Notebook Cover Cousin (A5) Black x Clear Blue

ほぼ日$47.654.3★54 rev

Hobonichi Techo Cousin Cover [A5 Planner Cover Only] Keiko Shibata: Gentle breeze in a dandelion field

ほぼ日$59.804.7★40 rev

Hobonichi Techo Accessories Cover on Cover for A5 Size (Only for Double Covering)

ほぼ日$10.704.4★510 rev

Newest

by launch date

A5 Clear Planner Cover Fits for Hobonichi Techo Cousin 2026 A5 Compatible with Midori Protector for Stalogy Notebooks (1-pack)

DILVREWA$7.0453 rev

5mo ago

A5 Clear Planner Cover Fits for Hobonichi Techo Cousin 2026 A5 Compatible with Midori Protector for Stalogy Notebooks (2-Pack)

DILVREWA$9.8653 rev

5mo ago

A5midori Clear Cover a5 Cover 5.6 x 8.5inces

BZQCRT$14.6161 rev

7mo ago

Clear Cover for Hobonichi A5 Size Planner- 13.1x8.8 Inches Plastic Cover for HON A5 Notebook Planner Protector (1-Pack)

DILVREWA$6.8693 rev

7mo ago

A5 Jelly Planner Cover Fits A5 Hobonichi Cousin Midori and Stalogy Notebooks Glitter Star Design

Generic$12.5863 rev

9mo ago

What buyers say about hobonichi cousin cover

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall37%

“Excellent fit”

Quality-Overall8%

“Nice quality though it's a clear simple cover”

Durability6%

“Durable”

Design-Overall5%

“Great construction”

Value For Money4%

“Its inexpensive”

Advertised Vs Actual Product4%

“just what I needed”

Color3%

“Looks: this color is so pretty”

Pockets/Compartments3%

“The pockets are numerous”

Leather Quality2%

“The leather is soft”

Paper Quality2%

“It feels nice in my hands makes me eager to pick up my journal”

What buyers complain about

Size-Overall28%

“it was way smaller when I finally got it”

Material Quality6%

“Its made of very cheap plastic that seems ready to tear”

Durability5%

“I get maybe a year out of one before it starts cracking”

Quality-Overall5%

“it was so cheap”

Leather Quality4%

“Wasn't the best quality leather for my taste”

Paper Quality3%

“paper fortunes”

Value For Money3%

“being as expensive as an actual Midori cover”

Advertised Vs Actual Product2%

“After all, the description reads A5midori Clear Cover a5 Cover 5.6 x 8.5inces with no other brand in the title”

Strength2%

“Fragile”

Measurement/Reading Accuracy2%

“Incorrect measurements”

Top return reasons

Size-Overall61%

Advertised Vs Actual Product10%

Compatibility-Overall5%

Material Quality4%

Color4%

Value For Money3%

Quality-Overall1%

Thickness1%

Wrinkles1%

Strength1%

Common questions

Is hobonichi cousin cover profitable to sell on Amazon United States?: The niche generates $229K/yr across 45 tracked products. 1 of 14 products launched in the last 360 days are still selling. 90-day search growth is -53.2%. Flapen's verdict: Skip it (44/100).
How competitive is the hobonichi cousin cover niche?: 14 brands and 27 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 81% of demand.
What do buyers complain about in hobonichi cousin cover?: Top complaints mined from reviews: Size-Overall, Material Quality, Durability. The return rate is 6.4% — above our launch gate.
When does demand for hobonichi cousin cover peak?: Demand peaks in Jan–Sep–Nov–Dec; the busiest month runs 5.2× the quietest.
What does it cost to enter the hobonichi cousin cover niche?: Listings span $6.86–$86.61; the average listing price is $37.52 (sweet spot $15–$100). The average incumbent carries 150 reviews — the moat a new listing must climb.