---
title: "Reviews — peak flow meter - Flapen"
canonical_url: "https://flapen.com/research/uk/business-industry-science/peak-flow-meter/reviews"
last_updated: "2026-07-31T23:27:39.972Z"
locale: en
meta:
  description: "Niche score 50/100 · £167K/yr market · 54K searches/yr. A concentrated shelf (top 5 take 85% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 50/100 · £167K/yr market · 54K searches/yr. A concentrated shelf (top 5 take 85% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — peak flow meter - Flapen"
---

# **peak flow meter**

**Worth a look**

Shows low returns (0.2%), but a concentrated shelf (top 5 take 85% of clicks) keeps it on the watch list.

Market size 35Growth 14Conversion 96Competition 12Returns 99Price range 85Avg price 93Brand share 33Review moat 86Quality gap 48

**Returns**

**Incredible****0.2%**

return rate — above 5% kills the launch gate

**Conversion**

**Incredible****14.1%**

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

**Avg price**

**Great****£22.00**

avg listing price — sweet spot $15–$100

**Review moat**

**Great****279.56**

avg incumbent reviews — the moat a new listing must climb

**Price range**

**Great****£6.64–£75.40**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Market size**

**Okay****£167K**

£167K/yr · 54K searches

**Brand share**

**Okay****85%**

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

**Growth**

**Bad****-21.9%**

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

**Competition**

**Bad****85%**

top-5 click share — a locked-up shelf