Is rainbow cups profitable to sell on Amazon United States?

The niche generates $189K/yr across 7 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +4.5%. Flapen's verdict: Skip it (34/100).

How competitive is the rainbow cups niche?

4 brands and 81 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in rainbow cups?

Top complaints mined from reviews: Quality-Overall, Thickness, Leak-Proof. The return rate is 0.4%.

What does it cost to enter the rainbow cups niche?

Listings span $5.01–$19.73; the average listing price is $9.51 (sweet spot $15–$100). The average incumbent carries 14,575 reviews — the moat a new listing must climb.

rainbow cups

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Conversion

Great7.4%

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

Market size

Okay$189K

$189K/yr · 269K searches

Price range

Okay$5.01–$19.73

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

Growth

Okay+4.5%

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

Avg price

Okay$9.51

avg listing price — sweet spot $15–$100

Review moat

Bad14,575.43

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad92%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, rainbow cups is a $189K/yr Amazon United States market (269K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 34/100.

Data updated Jul 13, 2026 · scored weekly · How we score niches

rainbow cups market data

Units sold / yr: 20K–25K; avg 4,000–5,000/product
Revenue / yr: $190K–$238K; units × avg price
Conversion rate: 7.4%
Avg BSR: #169
Page quality: 0%
Prime: 100%
Sponsored: 86%
Out of stock: 0.0%
Avg brand age: 38 months
Avg seller age: 141 days

Competition & brand share

The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

92%

Top 20: 100%

Open market

Hefty85%
TRUE7%
Lilymicky4%
Amazon Basics4%

Demand

Weekly Amazon search volume, last 48 weeks — +4.5% search growth over the last 90 days.

Open Trend

Top rainbow cups search terms

hefty cups36K/yr +50.7%7.2% conv.
colorful cups20K/yr +36.8%2.1% conv.
hefty plastic cups21K/yr +37.1%5.0% conv.
colorful plastic cups18K/yr +58.2%3.1% conv.
rainbow cups18K/yr +30.7%0.8% conv.
colored plastic cups22K/yr +12.3%2.7% conv.
hefty party cups14K/yr +64.0%4.7% conv.
colored cups14K/yr +29.2%2.5% conv.
hefty party on disposable plastic cups assorted 16 ounce 100 count39K/yr -81.7%7.0% conv.
colored solo cups13K/yr +39.2%6.7% conv.

All search terms

Top rainbow cups 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 7 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Hefty Party On Disposable Plastic Cups Assorted 16 Ounce 100 Count

Hefty$9.974.8★36,012 rev

Hefty Party Perfect Tinted Disposable Plastic Cups Red Blue and Yellow Plastic Cups Perfect Party Cups for Easy Cleanup and Large Gatherings 18 Ounce 54 Count

Hefty$9.024.8★504 rev

Hefty Party On Disposable Plastic Party Cups 50 Count 18 Oz Red Cups for Parties Tailgates Birthdays Holidays and More Contoured Shape for Easy Gripping Strong and Durable

Hefty$5.784.8★23,239 rev

True Party Plastic Cups Disposable Cup for Beers Cocktails Sodas Water Beverages Smoothies Iced Tea Juices 16 oz Set of 24 Multicolor

TRUE$7.414.6★451 rev

Hefty Party On Disposable Plastic Party Cups 76 Count 16 Oz Cups in Assorted Patriotic Colors and 18 Oz Clear Cups with Festive Firework Print for Fourth of July Summer and America 250 Celebrations

Hefty$9.674.8★36,012 rev

Newest

by launch date

Hefty Party On Disposable Plastic Party Cups 76 Count 16 Oz Cups in Assorted Patriotic Colors and 18 Oz Clear Cups with Festive Firework Print for Fourth of July Summer and America 250 Celebrations

Hefty$9.6736,012 rev

3mo ago

Amazon Basics Sturdy Disposable Plastic Party Cups for Cold Drinks Red 18oz 50 Count BPA-Free

Amazon Basics$5.015,340 rev

1y ago

Hefty Party Perfect Tinted Disposable Plastic Cups Red Blue and Yellow Plastic Cups Perfect Party Cups for Easy Cleanup and Large Gatherings 18 Ounce 54 Count

Hefty$9.02504 rev

1y ago

Lilymicky 100 Pack 12 oz Plastic Cups Neon Glowing Plastic Party Cups Assorted Neon Colors for Parties Carnivals and Any Events

Lilymicky$19.73470 rev

3y ago

True Party Plastic Cups Disposable Cup for Beers Cocktails Sodas Water Beverages Smoothies Iced Tea Juices 16 oz Set of 24 Multicolor

TRUE$7.41451 rev

7y ago

What buyers say about rainbow cups

What buyers praise and complain about, mined from review topics.

What buyers love

Color20%

“Colors are bright”

Value For Money15%

“Great value”

Strength14%

“The cups themselves are sturdy”

Durability9%

“They are durable”

Quality-Overall8%

“I really like the variety included in the pack”

Size-Overall7%

“they fit great”

Advertised Vs Actual Product7%

“Great Product As Advertised”

Ease Of Use3%

“They are easy to hold”

Leak-Proof3%

“relatively leak-proof”

Recycle/Reuse2%

“they are reusable/cleanable”

What buyers complain about

Quality-Overall13%

“Garbage”

Thickness11%

“They are not quite as thick as that other brand most people buy”

Leak-Proof9%

“cups leak”

Strength8%

“Very flimsy cups”

Size-Overall8%

“Was one cup short”

Taste-Overall6%

“The cups made whatever I poured in them taste funny”

Value For Money6%

“It's the exhorbitant cost of shipping that was not good”

Color4%

“Colors arent as in the pictures”

Ease Of Cleaning4%

“They do not want to rinse/wash their tumblers out”

Recycle/Reuse2%

“as plastic cups are not recyclable”

Top return reasons

Size-Overall40%

Value For Money20%

Color12%

Advertised Vs Actual Product5%

Strength2%

Leak-Proof2%

Quality-Overall2%

Smell2%

Functionality-Overall2%

Contamination2%

Common questions

Is rainbow cups profitable to sell on Amazon United States?: The niche generates $189K/yr across 7 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +4.5%. Flapen's verdict: Skip it (34/100).
How competitive is the rainbow cups niche?: 4 brands and 81 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in rainbow cups?: Top complaints mined from reviews: Quality-Overall, Thickness, Leak-Proof. The return rate is 0.4%.
What does it cost to enter the rainbow cups niche?: Listings span $5.01–$19.73; the average listing price is $9.51 (sweet spot $15–$100). The average incumbent carries 14,575 reviews — the moat a new listing must climb.