---
title: "Reviews — string line - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/string-line/reviews"
last_updated: "2026-07-31T12:34:53.495Z"
locale: en
meta:
  description: "Niche score 56/100 · £206K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 56/100 · £206K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — string line - Flapen"
---

# **string line**

**Worth a look**

Shows low returns (0.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 40Growth 30Conversion 95Competition 50Returns 99Price range 39Avg price 22Brand share 67Review moat 68Quality gap 58

**Returns**

**Incredible****0.3%**

return rate — above 5% kills the launch gate

**Conversion**

**Incredible****12.0%**

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

**Review moat**

**Good****784.71**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Good****65%**

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

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Competition**

**Okay****55%**

top-5 click share — leaders hold, buyers still browse

**Market size**

**Okay****£206K**

£206K/yr · 215K searches

**Price range**

**Okay****£2.74–£22.68**

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

**Growth**

**Okay****+3.9%**

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

**Avg price**

**Bad****£7.95**

avg listing price — sweet spot $15–$100

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%")