---
title: "Reviews — s21 plus screen protector - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/s21-plus-screen-protector/reviews"
last_updated: "2026-08-09T14:00:20.911Z"
locale: en
meta:
  description: "Niche score 44/100 · $134K/yr market · 90K searches/yr · $9.55 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 44/100 · $134K/yr market · 90K searches/yr · $9.55 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Reviews — s21 plus screen protector - Flapen"
---

# **s21 plus screen protector**

**Skip it**

Prices mostly outside the sweet spot ($4.39–$15.63) — this niche doesn't clear our bar today.

Market size 30Growth 24Conversion 97Competition 23Returns 70Price range 6Avg price 30Brand share 52Review moat 19Quality gap 80

**Conversion**

**Incredible****15.5%**

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

**Quality gap**

**Great****4.2★**

avg incumbent rating — lower means beatable quality

**Returns**

**Good****2.2%**

return rate — above 5% kills the launch gate

**Brand share**

**Good****74%**

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

**Market size**

**Okay****$134K**

$134K/yr · 90K searches

**Avg price**

**Okay****$9.55**

avg listing price — sweet spot $15–$100

**Growth**

**Bad****-2.5%**

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

**Competition**

**Bad****73%**

top-5 click share — a locked-up shelf

**Review moat**

**Bad****14,159.89**

avg incumbent reviews — the moat a new listing must climb

**Price range**

**Bad****$4.39–$15.63**

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

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

## Reviews