“Too many ads, I can’t use the app for even a minute without being interrupted. Also, my data from the past year suddenly vanished, which is extremely frustrating and concerning. this app is supposed to be reliable, especially when it…”
Independent automated assessment · 4 signal sources · 444 reviews scanned · analyzed 2026-10-04.
3.9 ★59,999 ratings
10M+Downloads
4+Age rating
—App size
Free · In-app purchasesIn-app purchases
About this app
Never forget your period dates again. Period Tracker Ovulation Cycle is an all-in-one period tracker, period calendar, ovulation tracker, and pregnancy app designed to help you understand your body. Whether you have regular or irregular cycles, this period tracking app helps you with ovulation tracking, predicts your next period, fertile window, and ovulation day to support pregnancy planning or birth control.
Use this my calendar period app to menstrual cycle track, log symptoms, cervical mucus, sexual activity, moods, and more. Get smart reminders for your next period, ovulation, fertility days, and medications.
Our pregnancy tools include an ovulation calculator for pregnancy, fertility insights, baby growth tracking, and an implantation calculator to support your pregnancy journey.…
Preview
Real screenshots from the store listing.
Independent evidence report
The evidence behind this assessment
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 1.9.1 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-04 . The app may have changed since.
The store currently lists version 1.9.1, updated 2026-07-17.
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 at least 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
Under 65% 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
From the package we downloaded and read — version 1.9.1, scanned 2026-09-21.
Permissions Android classifies as dangerous
None requested
Counted against the eighteen permissions listed in collect-package.ts. A dangerous permission is one Android asks the user to grant; requesting one is not itself a finding.
Analytics or tracking SDKs in the scanned package
3 or more found
Advertising SDKs in the scanned package
10 or more found
Counted as distinct SDKs in the package we scanned. One mediation bundle can contribute several, so this is not a count of advertisers.
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.
The catch list 2
Charges we publish at a strength we stand behind: measured from an artefact, agreed by independent sources, or reported by enough users to clear that charge's own published bar.
Multiple ad networks bundled
The package embeds several distinct advertising or mediation SDKs — a stack built for ad volume, not for a single house ad.
What we saw: Bundles 16 distinct ad networks / mediation SDKs: Amazon Publisher Services, AppLovin MAX, BidMachine, Chartboost and 12 more
Price may differ from what you see here
The app ships a remote paywall-experimentation SDK, so the offer shown is configured server-side and may differ per user — including from anything we or a reviewer saw.
What we saw: Paywall is server-configured and A/B tested via Adapty — the offer shown can differ per user
Positive evidence 2
Things this app does right, published at the same strengths as the catch list.
States a price, or offers a one-time purchase
The app's own text offers a one-time or lifetime purchase, or reviewers report that the price is stated clearly.
What we saw: Offers a one-time or lifetime purchase: "One time purchase"
Developer says data deletion can be requested
The developer's data-safety disclosure on the store states that users can request deletion of their data, or the app's own text offers a way to delete the account. This restates what the developer declares; it is not a test of whether deletion works. Apple publishes no equivalent disclosure, so on an Apple-only listing only the app's own text can support it.
What we saw: The developer's store data-safety disclosure states that data deletion can be requested; we have not seen a deletion control in the app's own text
One source only — shown, not confirmed 2
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: Aggressive ad load
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
What we saw: Aggressive ad load: raised by 41 distinct reviewers (9.2% of 444 reviews scanned)
In the app's own text: Tracking and data collection concerns
The app ships session-recording or a wide tracking stack, holds permissions that read personal data, or is reported by users to sell, leak or over-collect it. The evidence line says which of those was observed.
What we saw: Ships 5 distinct tracking/analytics SDKs: Amplitude, Datadog RUM, Firebase Analytics, Meta (Facebook) SDK and 1 more
Highlighted reviews
Representative public review excerpts shown as user reports, not Appworthy audit evidence.
“I've used the app for a long time and really liked it alot but now it is stuggled to even open the app without 10 adds popping up. Have to insert my pin 4 to 5 times and when it accepts the pin, an add pops up and then the whole pin…”
“I like so much ! I recommended to my friends. Is very useful, excellent period tracker. update sadly this 2026 the app is working weird no share alarms for medicine every just sometimes and Sometimes the tracking period vanish... and the…”
Assessment & version history
App changes and Appworthy events in one timeline.
Store listing updated to version 1.9.1.
What this app sells
Useful store-disclosed pricing, kept below the app listing.
Items shown0
Lowest—
Highest—
Google Play does not publish per-purchase prices.