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.
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




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
- Cycella Partner
Invite your partner with a code. They see only the items you tick, in their own app, and can reply with "I'll bring pads" or a short note.
- Cycella Pregnancy
When the time comes, Cycella Pregnancy keeps your weeks, visits and questions in a separate private record.
The Cycella family
Cycella
A private period tracker, period calendar and ovulation estimate, with no account.
Free on Google Play. iPhone coming soonCycella Pregnancy
Your weeks, estimated due date, visits, readings and questions, kept on your phone.
Free on Google Play. iPhone coming soonCycella Baby
Feeds, sleep, diapers, medicine and vaccine records, easy with one hand.
Free on Google Play. iPhone coming soonCycella Partner
A separate app for her partner that shows only what she chooses to share.
Coming soon