Daya / Period & cycle tracking
Daya
Period tracking, at your pace.
Daya is an iPhone period tracker with a menstrual calendar, symptom diary and cycle history. Essential tracking is free, with no ads, account or subscription. Cycle data stays on your device. Optional one-time in-app purchases let you support the project.
Information checked on November 1, 2026
Project screenshots with demonstration data; the interface may vary by version.
Features
What you can do.
01
A personal calendar
Log period start and end dates and see estimates for your next period.
02
A diary for daily changes
Keep a record of symptoms, mood, energy, pain and personal notes.
03
Your history in one place
Review past cycles and changes over time. Export your data whenever you choose.
At a glance
The details
that matter.
Who is it for?
For people who want to log periods and symptoms and keep a personal cycle history without an account or a recurring subscription.
- Devices
- iPhone · iOS 16 or later
- Languages
- French, English, Spanish and Brazilian Portuguese.
- Pricing
- Free essential tracking. Optional one-time support purchases (Founder Pass). No auto-renewing subscription; prices are shown before purchase.
- Account
- No account required
- Advertising
- No ads
Privacy
Your data.
Your choices.
Cycle and diary data is stored on your device, with no sync to a Daya server. JSON export and data deletion are available in settings. If you choose to send feedback, your message is sent to Formspree; cycle data is not automatically attached. Device backups and exports you share depend on your own settings.
App privacy policyFAQ
Frequently asked questions
Is Daya free?
Free essential tracking. Optional one-time support purchases (Founder Pass). No auto-renewing subscription; prices are shown before purchase.
Do I need an account?
No account required. Cycle and diary data is stored on your device, with no sync to a Daya server. JSON export and data deletion are available in settings. If you choose to send feedback, your message is sent to Formspree; cycle data is not automatically attached. Device backups and exports you share depend on your own settings.
Which devices does it work on?
iPhone · iOS 16 or later. French, English, Spanish and Brazilian Portuguese.
Can Daya be used as contraception?
Period dates, ovulation and fertile windows are estimates. Daya is not a medical device or a contraceptive method, and cannot confirm or rule out pregnancy.
Where can I download the official app?
Use the App Store link on this page to open the official Daya listing. No Google Play link is provided until availability has been confirmed.
This page is based on the app project and its App Store listing. Availability and terms may vary by version and region. Official App Store listing.
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