PetalCycle: Private Tracker
Cycle ranges, kept private
Only for iPhone
$1.99 · Designed for iPhone. Not verified for macOS.
iPhone
Understand your cycle with honest date ranges, quick daily logs, and private on-device tracking.
Know your cycle without pretending every body runs on a fixed date.
PetalCycle turns period starts and optional daily signals into clear cycle ranges. See an estimated next period, an estimated fertile window, and how confidence changes as you log more cycles.
Log flow, mood, symptoms, cervical mucus, LH results, basal temperature, and private notes in seconds. Review your month in a playful calendar and see recent cycle lengths over time.
Your cycle history stays in the app's local SwiftData store. There is no account, advertising, analytics SDK, tracking, subscription, or developer-operated backend.
Predictions are calendar estimates, not confirmation of ovulation. PetalCycle does not diagnose fertility, provide contraception, or replace qualified medical care. Do not use it to prevent pregnancy.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Alejandro Hernandez Mitre, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Alejandro Hernandez Mitre
- Size
- 1.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- Copyright
- © 2026 Alejandro Hernandez Mitre
