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Diary with Lock

Diary with Lock shows low returns (0.9%), but a small market ($38K/yr) keeps it on the watch list.

Flapen Score

51
Worth a look
Market size 10Growth 18Conversion 27Competition 92Returns 96Price range 26Avg price 41Brand share 85Review moat 86Quality gap 50
This niche Category average

Is Diary with Lock profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Diary with Lock is a £38K/yr Amazon United Kingdom market (163K searches/yr). The top 5 brands hold 50% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 51/100.

Diary with Lock: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -13.3% over the last 90 days and 2.2% of searches end in a purchase.

£38K

revenue / yr

Units sold / yr4K
Search volume / yr-13.3%163K
Conversion rate2.2%
Avg price£10.87

Who owns the niche?

The top 5 brands hold 50% of demand, so 50% of the market is open.

50%

open market share

Brands · sellers38 · 44
Top-5 product click share23%
Open market50%
Avg brand age39 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.

0/100

page quality · 78 products

Sponsored placement91%
New entrants (1y)29· 0 succeeded
Avg rating4.5★
Avg reviews284

Top Diary with Lock products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

Clicks spread well past the top 5 (23% combined) — an open shelf where new products get seen.

£0£766£2K£2K£3K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

Brands

38 flat

Sellers

44

Top-5 brand share

50%

Top 20: 89%

Top-5 click share

23%

Top 20: 64%

Open market

45%

  • WEMATE18%
  • Kesote12%
  • ZXHQ9%
  • Candcamp5%
  • WHENZOO5%
  • NectaRoy5%

Diary with Lock demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume163KCVR2.2%Products78Brands38Top 5 Brands50%OOS Rate13.4%Rating4.5★Reviews284Avg BSR#444
6K4KSpike '24Holiday '24Spike '25Holiday '25SepDecMarJunAugNovMarMay

Peak months: Nov, Dec · busiest ÷ quietest = 2.4×

Top Diary with Lock search terms shoppers use

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

  • diary with lock39K/yr
  • lockable diary31K/yr
  • journal with lock23K/yr
  • notebook with lock14K/yr
  • lockable notebook12K/yr
  • lockable journal11K/yr
  • lock diary8K/yr
  • lockable journal for adults6K/yr
  • locked journal6K/yr
  • locked diary6K/yr

What reviews say buyers love and hate about Diary with Lock

What buyers mention most, as a share of all reviews.

What buyers love

89% of reviews
Quality-Overall30%

Amazing quality

Locking Mechanism16%

Lock works well

Value For Money13%

Great value for money

Gifting Purpose7%

attractive gift

Design-Overall6%

Beautifully designed

What buyers complain about

80% of reviews
Locking Mechanism34%

lock is rubbish

Functionality-Overall10%

Doesnt work

Value For Money8%

Looks more expensive than it is

Durability6%

It broke the second day we got it

Ease Of Use5%

Couldn't open

Diary with Lock return rate & reasons

Why buyers send it back, as a share of all return requests.

0.9%

Return rate

10%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Locking Mechanism
45%
2Functionality-Overall
14%
3Size-Overall
6%
4Instructions/User Manual/Troubleshooting
5%
5Defective Material/Parts
3%

Common Diary with Lock questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Diary with Lock 51/100 on Amazon United Kingdom — Worth a look. The niche generates £38K/yr across 78 tracked products. 0 of 29 products launched in the last 360 days are still selling. Search demand moved -13.3% over the last 90 days.
Search demand for Diary with Lock on Amazon United Kingdom peaks in Nov–Dec, where the busiest month runs 2.4× the quietest.