Dalon - Period Calendar

hahabon96

Contains adsIn-app purchases

About this app

Dalon is a period tracker you can start without an account. Your records are saved on your phone first, with optional backup to your own Google Drive.

- Body and mind: flow, pain, symptoms, mood, medicine notes, notes and spotting
- Calendar: period days, an estimated next-period range and fertile window; swipe between months
- Cycle day: see which day of your cycle it is, even with only a few records
- Your rhythm: average, shortest and longest cycles, cycle length changes and average period length
- Your patterns: when symptoms tend to appear in your cycle (after two or more cycles)
- One-page cycle summary: recent cycles and frequent symptoms in one image you can share if you choose
- Reminders: 1, 2, 3, 5 or 7 days before and on the expected day, a daily log reminder and a period-end check. Reminders never show your records
- Home widget: check your estimated range and record a period start or end in one tap; hidden while the app is locked
- Selective sharing: preview a card with only the fields you choose
- Protection: fingerprint or phone PIN lock, backup file save and restore, 30-day trash
- Basal body temperature: log readings by date and view a 30-day graph
- Records: search, and date/field-filtered CSV or text export
- Your cycle: enter it yourself or pick the gap from your own records, and see the actual cycles used for estimates
- Korean and English: your notes and medicine names stay as entered
- Low-key icon: a plain circle on your home screen

Our promise
Records, calendar, estimates, backup and sharing will stay free. Features offered for free will not be moved behind a paywall. Banners appear only at the bottom of Statistics. Lifetime ad removal is a one-time purchase. No subscriptions or automatic charges after a free trial.

Estimates, fertile windows, temperature graphs and symptom patterns are for reference only and are based on your own records. They must not be used for contraception, pregnancy decisions or medical diagnosis. For ages 13 and older. Back up your records before uninstalling.

Support: [e-mail]

What’s new

Frequently logged symptoms now appear first. Today shows your last backup and later changes, with a shortcut to backup options. Compare cycle and period lengths, days logged, and symptoms for two cycles. Ongoing cycles and missing logs are identified. Cycle errors stay visible above the keyboard on small screens, and enlarged guidance is easier to read. Statistics ads recover more reliably after loading failures or returning to the app.