---
title: "Trend — s21 ultra privacy screen protector - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/s21-ultra-privacy-screen-protector/trend"
last_updated: "2026-08-09T14:16:07.437Z"
locale: en
meta:
  description: "Niche score 51/100 · $42K/yr market · 34K searches/yr · $12.72 avg price. A small market ($42K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 51/100 · $42K/yr market · 34K searches/yr · $12.72 avg price. A small market ($42K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — s21 ultra privacy screen protector - Flapen"
---

# **s21 ultra privacy screen protector**

**Worth a look**

Shows beatable incumbent ratings (3.7★), but a small market ($42K/yr) keeps it on the watch list.

Market size 11Growth 22Conversion 86Competition 49Returns 74Price range 36Avg price 56Brand share 56Review moat 50Quality gap 98

**Quality gap**

**Incredible****3.7★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Great****9.8%**

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

**Returns**

**Good****2.0%**

return rate — above 5% kills the launch gate

**Brand share**

**Good****71%**

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

**Avg price**

**Good****$12.72**

avg listing price — sweet spot $15–$100

**Review moat**

**Okay****1,526.35**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Okay****56%**

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

**Price range**

**Okay****$9.30–$18.17**

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

**Growth**

**Bad****-6.5%**

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

**Market size**

**Bad****$42K**

$42K/yr · 34K searches

**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")

## Trend