CycellaOn Google Play · iPhone coming soon

The period tracker that never asks who you are.

A free period tracker, ovulation calculator and period calendar in one app, with no account, no ads, and nothing sold.

Get it on Google Play See all features Free. No card, no signup. For ages 13 and up. Not available in the EU or UK yet.
Cycella's Today screen, showing cycle day 23, a period predicted in about 6 days, and a heads-up card with tips for the week ahead Cycella period calendar with logged and predicted cycle days

Everything it does

Built on your own cycles. Log your period, mood, symptoms and pads in three taps, and let the predictions sharpen the more you log.

  • Your next period, predicted

    See when your next period is likely to start, with a gentle heads-up before it, built from your own cycles, not a generic 28-day guess.

  • Period calendar and ovulation

    Logged periods, predicted periods, fertile window and ovulation day in one calendar view. Estimates only.

  • Log in three taps

    Flow, mood, symptoms, pads and a note. Tap a mood face on Today to log how you feel.

  • Know your own pattern

    Your cycle length, your period length and whether your cycles look regular, charted over six cycles.

  • Feelings by phase

    See how you tend to feel in each part of your cycle, so the next one is less of a surprise.

  • Doctor report

    Turn your log into a one-page summary you can bring to a visit, instead of recalling months of dates from memory.

  • Pad count

    Count the pads you have at home and get a reminder to buy more before you run out.

  • Nepali, Hindi, English

    Full app in English, Hindi or Nepali, with Bikram Sambat (BS) dates shown in Nepali.

  • Works offline

    Logging and predictions happen on your phone. Internet is only used if you turn on backup or partner sharing.

  • PIN or fingerprint lock

    Lock the app, which helps on a shared phone.

  • Encrypted backup, your key

    Optional backup is encrypted on your phone before upload, opened with your 12-word key. Our server never gets the key, so we cannot read your backup or recover it for you.

  • Partner sharing, your choice

    Invite a partner with a code and choose exactly what they see: mood, when your period is due, pad status. For ages 18 and up.

See it in the app

Today screen with cycle day and a period prediction
Today
Period calendar with logged and predicted days
Calendar
Cycle insights charted over six cycles
Insights
Optional partner sharing settings
Partner sharing

Why your cycle data stays yours

Private by design

  • No account: no name, email or phone number, ever.
  • Your logs live on your phone, encrypted, by default.
  • No ads, no analytics, no trackers. Nothing sold or shared.
  • Optional backup and partner sharing are encrypted on your phone first. We cannot read them.

Made for Nepal

  • Nepali language with Bikram Sambat dates, plus Hindi and English.
  • Works offline, on any Android phone.
  • PIN lock for shared phones.
  • Available on Google Play. The iPhone version is coming soon. See Cycella in Nepal and Cycella in India.

Read how Cycella keeps your data private, what we checked before designing it this way, or try the free period and ovulation calculators right now.

Works with the rest of the family

The Cycella family

Cycella gives estimates based on what you log. It is not medical advice and not a method of birth control. If your cycle worries you, please see a doctor or health worker.