Petal Chan: Period Tracker
100% private period tracker.
About
This app offers a private and secure way to track your menstrual cycles, fertility, and symptoms. It operates entirely offline, ensuring your personal health data remains on your device. Features include accurate predictions, biometric security, and comprehensive logging options.
What's New in Petal Chan
4.1.1
June 5, 2026
What's new in this update: • Clue Import Error Fixed - minor bug fixes • Clue Import Support — You can now import your history from Clue, alongside Flo and CSV imports.
MoreIn-App Purchases
$14.99
Petal Pro
Unlock all Petal features forever.
FAQ
Does Petal Chan have ads?
No, Petal Chan is completely ad-free. The app explicitly states 'NO SUBSCRIPTIONS. NO ADS.' and emphasizes its privacy-first approach without trackers, analytics, or advertisements.
How accurate is Petal Chan's cycle tracking?
Petal Chan uses a 'smarter prediction engine refined through continuous updates' for accurate cycle tracking and ovulation prediction. It also supports Basal Body Temperature (BBT) tracking and logging of LH ovulation test strips for a more science-backed picture of fertile days.
Can I track my cycle if I have an IUD or irregular periods with Petal Chan?
Yes, Petal Chan offers specific modes for IUD users (hormonal or copper) and those with irregular cycles or amenorrhea. The 'Symptom-Only' mode allows tracking moods, cervical mucus, and body signals without forcing inaccurate period predictions.
Is my data safe with Petal Chan?
Petal Chan is designed with privacy as its core principle. It is 100% offline, meaning your data never leaves your device, is never uploaded to the cloud, and is never sold to third parties. It also features biometric security like fingerprint or Face ID.
What devices does Petal Chan support?
Based on the provided data, Petal Chan currently supports iPhone devices. It also offers a home screen widget for quick access to cycle information without opening the app.
Can I import my data from other period tracking apps into Petal Chan?
Yes, Petal Chan supports importing your history from popular apps like Flo and Clue, as well as any CSV export. This makes switching to Petal Chan seamless, ensuring you don't lose your past health data.
How often is Petal Chan updated?
The latest version of Petal Chan is 4.1.1, and it was last updated on June 5, 2026. This indicates a relatively recent update, suggesting ongoing development and support for the application.
What languages does Petal Chan support?
Petal Chan is available in multiple languages, including English, Spanish, French, German, Portuguese, and Tagalog. Users can switch between these languages at any time within the app's settings.