---
title: "Reviews — retainer case - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/retainer-case/reviews"
last_updated: "2026-08-11T20:47:33.009Z"
locale: en
meta:
  description: "Niche score 59/100 · $1.5M/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 59/100 · $1.5M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — retainer case - Flapen"
---

# **retainer case**

**Worth a look**

Shows low returns (1.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 86Growth 25Conversion 79Competition 68Returns 93Price range 48Avg price 24Brand share 62Review moat 50Quality gap 23

**Returns**

**Great****1.1%**

return rate — above 5% kills the launch gate

**Market size**

**Great****$1.5M**

$1.5M/yr · 2.1M searches

**Conversion**

**Great****7.9%**

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

**Competition**

**Good****44%**

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

**Brand share**

**Good****68%**

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

**Review moat**

**Good****1,481.22**

avg incumbent reviews — the moat a new listing must climb

**Price range**

**Okay****$4.24–$24.82**

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

**Growth**

**Bad****-0.6%**

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

**Avg price**

**Bad****$8.77**

avg listing price — sweet spot $15–$100

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

## Reviews