---
title: "Trend — mailbox letters - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/mailbox-letters/trend"
last_updated: "2026-08-06T13:43:25.976Z"
locale: en
meta:
  description: "Niche score 56/100 · $98K/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 · $98K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — mailbox letters - Flapen"
---

# **mailbox letters**

**Worth a look**

Shows no brand lock-in (top 5 brands take 48% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 24Growth 51Conversion 62Competition 76Returns 81Price range 32Avg price 32Brand share 87Review moat 47Quality gap 50

**Brand share**

**Great****48%**

top-5 brand share — no brand owns this niche

**Returns**

**Great****1.7%**

return rate — above 5% kills the launch gate

**Competition**

**Great****39%**

top-5 click share — an open shelf

**Conversion**

**Good****5.5%**

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

**Growth**

**Good****+21.6%**

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

**Quality gap**

**Good****4.5★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Okay****1,849.35**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Okay****$9.84**

avg listing price — sweet spot $15–$100

**Price range**

**Okay****$2.32–$21.00**

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

**Market size**

**Bad****$98K**

$98K/yr · 181K searches

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

## Trend