Natural Cycles
FailThe top 5 brands take 100% of clicks, so Natural Cycles is a Fail.
- Flapen Score
- 48 / 100Ranks 7,720 of 14,768 Health & Household niches · −1 vs the category median of 4948
- Market size
- $894K/yr522K searches / yr
- 90-day growth
- -10.5%search demand this quarter
- Competition
- 90%top-5 click share · 4 brands · 9 sellers
Flapen Score
Natural Cycles against its category
The dotted line is the Health & Household average. Past it, Natural Cycles is stronger. Inside it, weaker.
Market
The Natural Cycles market on Amazon at a glance
Shoppers on Amazon United States searched for Natural Cycles 522K times last year and spent an estimated $894K. All 4 brands take every click. Demand peaks in Jan. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 10.5% of those searches ended in a purchase.
Shoppers searched for this 522K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 10.5% of those searches ended in a purchase. Searches in the last 90 days moved -10.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $894K a year.
- Searches, last 12 months
- 522K
- Growth, 90 days vs prior 90
- -10.5%
- Conversion, latest week
- 10.5%
- Market size, estimated
- $894Ka year
- Peak month
- January2.0× the quietest month
- Top search term
- basal body thermometer for ovulation171K searches a year
02 · Price
A sale here is worth $16.33.
Listings sell for $16.33 on average, from $7.61 to $38.12. Amazon reports units sold in ranges. This niche sold 50K to 60K a year. The average listing sells 6,000 to 8,000 of them. At $16.33 that is $98K to $131K a year per listing.
- Average price
- $16.33inside the $15 to $100 sweet spot
- Price range
- $7.61–$38.12
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 50K–60K
- Units per listing a year
- 6,000–8,000
- Revenue per listing a year
- $98K–$131K
- Returns
- 1.7%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
88% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #4 within Health Monitors. It carries 13,220 reviews at 4.34 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 88%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #4in Health Monitors
- Average rating
- 4.34 starsAmazon United States average 4.42 stars
- Average reviews
- 13,220per listing
- Listings tracked
- 8
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 57 months on average, so the names here are settling in.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 57 months
Products
Top Natural Cycles products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 14, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Easy@Home Digital Basal Thermometer for Ovulation: Backlight LCD Display 1/100th Degree High Precision BBT Memory Recall NOT Bluetooth Enabled Scan Results with Premom Fertility Tracker App Blue
- Price
- $13.95
- Rating
- 4.3/5
- Reviews
- 9,709
- Age
- 7y ago

Boncare 9 Seconds Basal Body Thermometer for Ovulation (Rice-White)
- Price
- $14.23
- Rating
- 4.3/5
- Reviews
- 2,865
- Age
- 2y ago

Digital Basal Body Thermometer 1/100th Degree High Precision Quick 60-Sec Reading Memory Recall Accurate BBT Thermometer for Natural Ovulation Tracking by iProven
- Price
- $9.23
- Rating
- 4.2/5
- Reviews
- 7,147
- Age
- 7y ago

Easy@Home Basal Body Thermometer: BBT for Fertility Prediction with Memory Recall- Accurate Digital Basal Thermometer for Temperature Monitoring with Premom App - EBT-018
- Price
- $9.05
- Rating
- 4.3/5
- Reviews
- 3,265
- Age
- 4y ago

Easy@Home Ovulation Test Kit: 50 Ovulation Strips & 20 Early Pregnancy Tests & One Basal Body Thermometer & Urine Cups
- Price
- $26.83
- Rating
- 4.6/5
- Reviews
- 78,399
- Age
- 4y ago
Trending
estimated 90-day click momentum
Wondfo Basal Body Thermometer for Ovulation BBT Thermometer with Face Indicator 60s Fast Reading 30 Memory Recall High Precision Fertility Thermometer Waterproof
- Price
- $11.57
- Rating
- 4.3/5
- Reviews
- 158
- Age
- 8mo ago

Easy@Home Digital Basal Thermometer for Ovulation: Backlight LCD Display 1/100th Degree High Precision BBT Memory Recall NOT Bluetooth Enabled Scan Results with Premom Fertility Tracker App Blue
- Price
- $13.95
- Rating
- 4.3/5
- Reviews
- 9,709
- Age
- 7y ago

Easy@Home Smart Basal Thermometer for Women: Digital BBT Auto Sync with Premom App - Large Screen and Backlit Body Temperature - FSA Eligible Charting Precise Fertility Prediction | EBT-300
- Price
- $38.12
- Rating
- 4.4/5
- Reviews
- 4,060
- Age
- 8y ago

Boncare 9 Seconds Basal Body Thermometer for Ovulation (Rice-White)
- Price
- $14.23
- Rating
- 4.3/5
- Reviews
- 2,865
- Age
- 2y ago

Easy@Home Basal Body Thermometer: BBT for Fertility Prediction with Memory Recall- Accurate Digital Basal Thermometer for Temperature Monitoring with Premom App - EBT-018
- Price
- $9.05
- Rating
- 4.3/5
- Reviews
- 3,265
- Age
- 4y ago
Newest
by launch date
Wondfo Basal Body Thermometer for Ovulation BBT Thermometer with Face Indicator 60s Fast Reading 30 Memory Recall High Precision Fertility Thermometer Waterproof
- Price
- $11.57
- Rating
- 4.3/5
- Reviews
- 158
- Age
- 8mo ago

Wondfo Digital Basal Thermometer for Women Fertility BBT Thermometer for Ovulation & Pregnancy Tracking High Accuracy & LCD Display & Waterproof
- Price
- $7.61
- Rating
- 4.3/5
- Reviews
- 158
- Age
- 1y ago

Boncare 9 Seconds Basal Body Thermometer for Ovulation (Rice-White)
- Price
- $14.23
- Rating
- 4.3/5
- Reviews
- 2,865
- Age
- 2y ago

Easy@Home Ovulation Test Kit: 50 Ovulation Strips & 20 Early Pregnancy Tests & One Basal Body Thermometer & Urine Cups
- Price
- $26.83
- Rating
- 4.6/5
- Reviews
- 78,399
- Age
- 4y ago

Easy@Home Basal Body Thermometer: BBT for Fertility Prediction with Memory Recall- Accurate Digital Basal Thermometer for Temperature Monitoring with Premom App - EBT-018
- Price
- $9.05
- Rating
- 4.3/5
- Reviews
- 3,265
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 90% of clicks. A locked shelf that new listings rarely crack.
Brands
4 falling
Sellers
9
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
90%
Top 20: 100%
Open market
0%
- Easy@Home57%
- Boncare21%
- iProvèn16%
- Wondfo6%
- Open — no brand owns it (0%)
Demand
Natural Cycles search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan · busiest ÷ quietest = 2.0×
Search terms
Top Natural Cycles search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- basal body thermometer for ovulation171K/yr
- bbt thermometer for ovulation83K/yr
- basal body thermometer80K/yr
- bbt thermometer34K/yr
- basal thermometer24K/yr
- bbt21K/yr
- basal thermometer for ovulation16K/yr
- natural cycles16K/yr
- ovulation thermometer16K/yr
- basal body temperature thermometer13K/yr
Reviews and returns
What reviews say buyers love and hate about Natural Cycles
We read the reviews and the return reasons for every product selling here.
“it is a bit complicated to use based on what it does which is simply to take a temperature”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Natural Cycles questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









