---
title: "Reviews — calendar 2023 - Flapen"
canonical_url: "https://flapen.com/research/uk/stationery-office-supplies/calendar-2023/reviews"
last_updated: "2026-07-31T10:46:35.390Z"
locale: en
meta:
  description: "Niche score 59/100 · £812K/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 · £812K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — calendar 2023 - Flapen"
---

# **calendar 2023**

**Worth a look**

Shows low returns (0.7%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 73Growth 13Conversion 60Competition 55Returns 96Price range 32Avg price 95Brand share 69Review moat 72Quality gap 48

**Returns**

**Incredible****0.7%**

return rate — above 5% kills the launch gate

**Avg price**

**Incredible****£25.14**

avg listing price — sweet spot $15–$100

**Market size**

**Good****£812K**

£812K/yr · 623K searches

**Review moat**

**Good****638.27**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Good****64%**

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

**Conversion**

**Good****5.2%**

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

**Competition**

**Good****52%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Price range**

**Okay****£2.81–£268.14**

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

**Growth**

**Bad****-23.1%**

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

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500") [** Out of Stock**](https://flapen.com/research/niches?market=uk&signal=out_of_stock "OOS rate > 10%")