ephira Download

Period tracker for iOS

The period tracker with nothing to sync.

What you log is encrypted with a key locked to your phone. There is no account to make and no server to trust.

Download on the App Store

On Android? The Google Play version is older and does not encrypt your data. New releases are moving off Google Play. Follow along on GitHub.

A look inside

Scroll sideways

  1. The home screen: the current cycle phase, a ring of this month's flow days with today marked, and the five most recent flow days

    Today at a glance

    Where you are in your cycle and your latest period, on one screen.

  2. The October calendar with flow marked on the 3rd to the 7th and headaches on the 14th and 16th

    Your month, marked

    Flow and the symptom you choose, under each day.

  3. Logging a day: symptom chips with Headache and Vertigo selected

    Log in a tap

    Flow, symptoms, moods, medications, birth control, intercourse and notes.

  4. The Cycle tab: ovulation phase, day 17 of 29, and the next period predicted in 13 days with high confidence

    Know your cycle

    Your phase, the day of your cycle, and when your next period should start.

  5. Custom Entries with two custom symptoms, Vertigo and Migraine aura

    Add your own entries

    Track a symptom, mood or medication the app did not think of.

  6. The Filter Calendar dialog with Flow, Headache and Cycle Prediction turned on

    Choose what you see

    Filter the calendar down to what matters to you.

  7. The lock screen in dark mode, asking for the ephira password

    Lock it

    Your phone's own unlock, passcode included, or a password just for ephira.

  8. The home screen in the pink theme

    Make it yours

    Six colour themes, light or dark to match your phone.

  9. Exporting data as a PDF, with the share sheet open on a 6 KB file

    Take it with you

    Your flow, symptoms, moods, medications, birth control and notes, as CSV, PDF or JSON.

Questions

Where is my data stored?

On your phone, in a database encrypted with SQLCipher. Its key is locked to that phone, so a backup restores your data only to the phone it came from. A backup made before ephira began encrypting can still hold a readable copy.

Do I need an account?

No. Install it and start logging. The optional lock uses your phone's own unlock, passcode included, or a password you set in the app.

What happens when I change phones?

Your data does not move to a new phone, and the app cannot import an export. Export first to keep a copy of your flow, symptoms, moods, medications, birth control and notes.

When do predictions start?

Once you have logged two periods of three or more consecutive flow days, turn on Cycle Predictions in Settings.

How do I delete my data?

In Settings, open Data and choose Delete Data. Uninstalling the app deletes its data too.

Can I check any of this?

Yes. ephira is MIT licensed and the whole source is on GitHub.