---
title: "Reviews — diary with lock - Flapen"
canonical_url: "https://flapen.com/research/us/office-products/diary-with-lock/reviews"
last_updated: "2026-07-21T07:24:14.425Z"
locale: en
meta:
  description: "diary with lock shows no brand lock-in (top 5 brands take 42% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "diary with lock shows no brand lock-in (top 5 brands take 42% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — diary with lock - Flapen"
---

# **diary with lock**

**Worth a look**

Shows no brand lock-in (top 5 brands take 42% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 57Growth 18Conversion 22Competition 91Returns 92Price range 87Avg price 79Brand share 93Review moat 62Quality gap 24

**Brand share**

**Great****42%**

top-5 brand share — no brand owns this niche

**Returns**

**Great****1.1%**

return rate — above 6% kills the launch gate

**Competition**

**Great****24%**

top-5 click share — an open shelf

**Price range**

**Great****$6.70–$92.06**

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

**Avg price**

**Great****$16.57**

avg listing price — sweet spot $15–$100

**Review moat**

**Good****1,002.31**

avg incumbent reviews — the moat a new listing must climb

**Market size**

**Good****$431K**

$431K/yr · 1.4M searches

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Bad****1.8%**

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

**Growth**

**Bad****-14.3%**

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