sister in law birthday cards
Worth a lookShows low returns (0.1%), but prices mostly outside the sweet spot ($2.08–$5.85) keeps it on the watch list.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Incredible13.4%search→purchase rate — share of searches ending in a sale
Review moat
Great256.98avg incumbent reviews — the moat a new listing must climb
Brand share
Great56%top-5 brand share — no brand owns this niche
Competition
Great37%top-5 click share — an open shelf
Market size
Bad£93K£93K/yr · 221K searches
Growth
Bad-6.6%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Avg price
Bad£3.15avg listing price — sweet spot $15–$100
Price range
Bad£2.08–£5.85cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, sister in law birthday cards is a £93K/yr Amazon United Kingdom market (221K searches/yr). The top 5 brands hold 56% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
sister in law birthday cards market data
- Units sold / yr
- 25K–30K
- avg 250–500/product
- Revenue / yr
- £79K–£95K
- units × avg price
- Conversion rate
- 13.4%
- Avg BSR
- #2,786
- Page quality
- 0%
- Prime
- 91%
- Sponsored
- 77%
- Out of stock
- 3.3%
- Avg brand age
- 32 months
- Avg seller age
- 177 days
Competition & brand share
Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.Brands
21 falling
Sellers
47
Top-5 brand share
56%
Top 20: 99%
Top-5 click share
37%
Top 20: 79%
Open market
38%
- Cherry Orchard14%
- Me To You14%
- Old English Company11%
- Olivia Samuel9%
- Piccadilly Greetings9%
- Card Essentials7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -6.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 2.0×
Top sister in law birthday cards search terms
- sister in law birthday cards134K/yr
- sister in law birthday card33K/yr
- birthday card sister in law21K/yr
- birthday card for sister in law11K/yr
- birthday cards for sister in law11K/yr
- sister in law card6K/yr
- happy birthday sister in law card5K/yr
Top sister in law birthday cards products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Me To You Tatty Teddy Amazing Sister-In-Law Cute Luxury Gold Foil Birthday Card 6 X 9 Inches - Official Collection
Me To You£2.084.7★15 rev
Cherry Orchard Lovely Sister in Law Birthday Card with Envelope Gorgeous design Cocktail glasses Balloons flowers & hearts - Gold Foil Finish
Cherry Orchard£2.784.9★186 rev
Sister-in-Law Birthday Card - Flowers - 7.5 x 5.25 10002
Card Essentials£2.384.6★434 rev
Piccadilly Greetings Traditional Birthday Card Sister In Law - 9 x 6 inches
Piccadilly Greetings£2.994.6★85 rev
Sister-in-Law Birthday Card - Summer Bouquet with Lovely Verse Inside - Traditional Birthday Card for Women - A5 Size Card with Yellow Envelope
Olivia Samuel£3.364.9★25 rev
Newest
by launch date
Happy Birthday Sister-in-law Card - With Love - Elegant Watercolour Floral Bouquet in Vase with Butterfly
Purple Fox£2.691 rev
Me To You Tatty Teddy Amazing Sister-In-Law Cute Luxury Gold Foil Birthday Card 6 X 9 Inches - Official Collection
Me To You£2.0815 rev
Sister-in-Law Birthday Card - Summer Bouquet with Lovely Verse Inside - Traditional Birthday Card for Women - A5 Size Card with Yellow Envelope
Olivia Samuel£3.3625 rev
Sister-in-Law Birthday Card - Colourful Dahlia Blooms Design - Pretty Greetings card for Women - A5 Size Card with Pink Envelope
Olivia Samuel£3.3425 rev
Sister-in-Law Birthday Card - Floral Gardening Design - Birthday Wishes for Women - A5 Size Card with Fuchsia Pink Envelope
Olivia Samuel£3.4425 rev
Trending
90-day click momentumSister-in-Law Birthday Card - Floral Gardening Design - Birthday Wishes for Women - A5 Size Card with Fuchsia Pink Envelope
Olivia Samuel£3.444.9★
Sister-in-Law Birthday Card - Summer Bouquet with Lovely Verse Inside - Traditional Birthday Card for Women - A5 Size Card with Yellow Envelope
Olivia Samuel£3.364.9★
Sister-in-Law Birthday Card - Colourful Dahlia Blooms Design - Pretty Greetings card for Women - A5 Size Card with Pink Envelope
Olivia Samuel£3.344.9★
Me To You Tatty Teddy Amazing Sister-In-Law Cute Luxury Gold Foil Birthday Card 6 X 9 Inches - Official Collection
Me To You£2.084.7★
Happy Birthday Sister-in-law Card - With Love - Elegant Watercolour Floral Bouquet in Vase with Butterfly
Purple Fox£2.695.0★
What buyers say about sister in law birthday cards
What buyers praise and complain about, mined from review topics.What buyers love
“Card is nice quality”
“Great value”
“Good size”
“Vibrant and colourful”
“As requested”
“Lovely quality and design”
“So elegant”
“Good quality card with lovely quotes inside”
What buyers complain about
“small than I wanted”
“The cad itself was nt very decorative”
Top return reasons
Common questions
- Is sister in law birthday cards profitable to sell on Amazon United Kingdom?
- The niche generates £93K/yr across 44 tracked products. 1 of 14 products launched in the last 360 days are still selling. 90-day search growth is -6.6%. Flapen's verdict: Worth a look (53/100).
- How competitive is the sister in law birthday cards niche?
- 21 brands and 47 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 56% of demand.
- What do buyers complain about in sister in law birthday cards?
- Top complaints mined from reviews: Size-Overall, Design-Overall. The return rate is 0.1%.
- When does demand for sister in law birthday cards peak?
- Demand is steady year-round — the busiest month runs 2.0× the quietest.
- What does it cost to enter the sister in law birthday cards niche?
- Listings span £2.08–£5.85; the average listing price is £3.15 (sweet spot $15–$100). The average incumbent carries 257 reviews — the moat a new listing must climb.