“Going downhill — This app used to be great and when I found it I was so excited. Unfortunately the price increases are absolutely insane I started at $90 a year and now it’s $160! They notified me over a month before my subscription…”
Independent automated assessment · 3 signal sources · 465 reviews scanned · analyzed 2026-10-04.
4.8 ★30,140 ratings
—Downloads
17+Age rating
129 MBApp size
FreeIn-app purchases
About this app
Natural Cycles is a 100% non-hormonal birth control app cleared by FDA. Get an NC° Band with our annual subscription, or a compatible wearable to measure your basal temperature and track your biomarkers. Trusted by 6M+ women, using Natural Cycles as an ovulation tracker is a great way to start your birth control or fertility journey.
Trust in science to support you • Natural Cycles is 98% effective when used as intended, and 93% with typical use. • Typical use is in the same effectiveness category as the contraceptive pill, which is 93% effective. • Unlike period trackers, our algorithm uses personalized temperature trends data to detect ovulation.…
Preview
Real screenshots from the store listing.
Independent evidence report
Evidence and review signals
This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.
Which version this describes
When we ran this analysis, and what the store lists now.
This analysis describes version 5.9.1 of the app, analyzed 2026-10-04 . The app may have changed since.
The store currently lists version 5.9.1, updated 2026-09-29.
What we measured
Each line is a measurement published as a measurement, never a verdict.
Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.
Developer replies to reviews
Replies to fewer than 1 review in 20
Price in the store description
States no price and billing period
Cancelling, in the store description
Does not say how to cancel
Themes reported by reviewers
1 theme reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
90% or more five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.
In the package we scanned
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence about the app, not a finding about it.
Graded bands · predicate set 1.4 · how these are measured
What the analysis found
App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.
One source only — shown, not confirmed 1
A single kind of evidence. We publish these because withholding them would be the bigger distortion, and we do not treat any of them as a finding we stand behind.
Reported by users: Price keeps rising
The price of the paid tier has been raised on existing users.
What we saw: Price keeps rising: raised by 21 distinct reviewers (4.5% of 465 reviews scanned)
Highlighted reviews
Representative public review excerpts shown as user reports, not Appworthy audit evidence.
“Terrible refund policy — Subscription price increase by over 50% is absolutely ridiculous. You don’t need this-oura tracks period data now. Completely overpriced and they won’t refund anything.”
“Price increase is insane — I’ve been a long time user but them charging $150 for an app is insane! There are a lot better and more economical options out there.”
Assessment & version history
App changes and Appworthy events in one timeline.
Store listing updated to version 5.9.1.
What this app sells
Useful store-disclosed pricing, kept below the app listing.
Business modelFree
Prices and terms as disclosed by the store listing.