Imst
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Price range
Incredible$28.79–$52.86cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$47.20avg listing price — sweet spot $15–$100
Conversion
Great8.1%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Market size
Good$604K$604K/yr · 159K searches
Returns
Good2.8%return rate — above 5% kills the launch gate
Review moat
Okay1,931.33avg incumbent reviews — the moat a new listing must climb
Growth
Okay+7.8%90-day search growth — must beat 0% to launch
Competition
Bad97%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Is imst profitable on Amazon?
According to Flapen's Amazon United States niche tracking, imst is a $604K/yr Amazon United States market (159K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 48/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
imst market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 13K–15K
- avg 2,500–3,000/product
- Revenue / yr
- $590K–$708K
- units × avg price
- Conversion rate
- 8.1%
- Avg BSR
- #145
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 1.5%
- Avg brand age
- 49 months
- Avg seller age
- 170 days
Competition: brands, sellers & click share
The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 flat
Sellers
5
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
97%
Top 20: 100%
Open market
0%
- The Breather80%
- Tilcare12%
- Breather Fit5%
- BIG BREATHE4%
imst demand & seasonality
Weekly Amazon search volume, last 104 weeks — +7.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top imst search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- the breather44K/yr
- the breather respiratory muscle trainer19K/yr
- breather20K/yr
- emst 150 expiratory muscle strength trainer14K/yr
- breather device17K/yr
- emst150 expiratory muscle strength trainer5K/yr
- emst 1507K/yr
- emst6K/yr
- the breather device9K/yr
- emst 756K/yr
Top imst products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 6 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
THE BREATHER Natural Breathing Exerciser Trainer For Drug-Free Respiratory Therapy Breathe Easier with Stronger Lungs Guided Mobile Training App Included
The Breather$50.414.4★9,132 rev
Breathing Trainer & Lung Trainer - Ideal Breathing Exercise Device for Lungs Effective Breather Device & Lung Exerciser Device Best Breathing Device & Lung Strengthener Tilcare Respiratory Trainer
Tilcare$28.794.1★349 rev
The Breather Pink | Easy Lung Training for Better Breathing & Enhance Your Wellness | Guided Coaching App Included
The Breather$50.494.5★414 rev
The Breather Fit - Lung Trainer for Athletes - Portable Breathing Exercise Device for Lungs - Respiratory Muscle Strengthener - Lung Exerciser Device - Breath Trainer - Coaching App Included
Breather Fit$52.414.2★1,206 rev
Bigbreathe IMT/PEP Breathing Exerciser | Dual Action Lung Trainer for Seniors & AdultsMucus Relief Airway Clearance Inspiratory & Expiratory Resistance Easy to Use Travel-Ready
BIG BREATHE$48.234.3★166 rev
Newest
by launch dateBigbreathe IMT/PEP Breathing Exerciser | Dual Action Lung Trainer for Seniors & AdultsMucus Relief Airway Clearance Inspiratory & Expiratory Resistance Easy to Use Travel-Ready
BIG BREATHE$48.23166 rev
The Breather Pink | Easy Lung Training for Better Breathing & Enhance Your Wellness | Guided Coaching App Included
The Breather$50.49414 rev
Breathing Trainer & Lung Trainer - Ideal Breathing Exercise Device for Lungs Effective Breather Device & Lung Exerciser Device Best Breathing Device & Lung Strengthener Tilcare Respiratory Trainer
Tilcare$28.79349 rev
The Breather Voice | Respiratory Breath & Lung Trainer | Strengthen Your Breath Control & Elevate Your Singing Performance
The Breather$52.86321 rev
The Breather Fit - Lung Trainer for Athletes - Portable Breathing Exercise Device for Lungs - Respiratory Muscle Strengthener - Lung Exerciser Device - Breath Trainer - Coaching App Included
Breather Fit$52.411,206 rev
Trending
90-day click momentumBreathing Trainer & Lung Trainer - Ideal Breathing Exercise Device for Lungs Effective Breather Device & Lung Exerciser Device Best Breathing Device & Lung Strengthener Tilcare Respiratory Trainer
Tilcare$28.794.1★
The Breather Voice | Respiratory Breath & Lung Trainer | Strengthen Your Breath Control & Elevate Your Singing Performance
The Breather$52.864.4★
Bigbreathe IMT/PEP Breathing Exerciser | Dual Action Lung Trainer for Seniors & AdultsMucus Relief Airway Clearance Inspiratory & Expiratory Resistance Easy to Use Travel-Ready
BIG BREATHE$48.234.3★
THE BREATHER Natural Breathing Exerciser Trainer For Drug-Free Respiratory Therapy Breathe Easier with Stronger Lungs Guided Mobile Training App Included
The Breather$50.414.4★
The Breather Pink | Easy Lung Training for Better Breathing & Enhance Your Wellness | Guided Coaching App Included
The Breather$50.494.5★
What reviews say buyers love and hate about imst
What buyers praise and complain about, mined from review topics.What buyers love
“It does help breathing”
“Great build quality”
“Easy to use”
“As advertised”
“Good price”
“Works well”
“Adjustable level of resistance is helpful”
“Got the breather fit”
“Improves respiratory health”
What buyers complain about
“my breathing isn't good”
“Also very disappointed by the app as others have mentioned”
“There were no instructions”
“Broke”
“Garbage”
“It is very complicated and not helpful”
“it is more expensive”
“Needs better resistance”
“Used product”
“The product description or photos state that that the app used with this is available on both Iphone and Android. This is false”
Top return reasons
Common imst questions
- Is imst profitable to sell on Amazon United States?
- The niche generates $604K/yr across 6 tracked products. 90-day search growth is +7.8%. Flapen's verdict: Skip it (48/100).
- How competitive is the imst niche?
- 4 brands and 5 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in imst?
- Top complaints mined from reviews: Breathability, Software/Application, Instructions/User Manual/Troubleshooting. The return rate is 2.8%.
- When does demand for imst peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the imst niche?
- Listings span $28.79–$52.86; the average listing price is $47.20 (sweet spot $15–$100). The average incumbent carries 1,931 reviews — the moat a new listing must climb.