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Cycylr – Period & Ovulation Tracker

A period, ovulation and pregnancy tracker that learns from your own cycles and keeps the log on your phone.

Cycylr is a period tracker that doesn't ask you to create an account. You log your period, symptoms and mood. After a few cycles, the predictions come from your own history instead of a textbook 28-day average.

When you are expecting, switch to pregnancy mode. It gives you week-by-week updates, a kick counter and a contraction timer.

What it does

Period and ovulation predictions

Next period, fertile window and ovulation day, with a confidence level that reflects how regular your cycles are.

Daily log

Flow, cramps, headaches, bloating, sleep, energy, mood and free-text notes.

Cycle regularity

Tells you whether your cycles look regular, somewhat irregular or irregular, based on what you have logged.

Reminders

Reminders for an upcoming period, a late period, the fertile window and ovulation.

Pregnancy mode

Due date, trimester progress and weekly baby-size updates.

Kick counter and contraction timer

Count kicks from week 24. Time contractions and see their average length and spacing, with an alert based on the 5-1-1 rule.

Your data

Your cycle log is stored on your phone, and Cycylr has no account system. The free version shows ads from Google AdMob. Uninstalling the app, or clearing its data in Android settings, removes your log.

Questions people ask

How many cycles before predictions are accurate?

Log at least two or three cycles. Until then, Cycylr uses typical averages. After that it uses your own history, and the confidence indicator rises as your cycles become more predictable.

Can I use Cycylr as birth control?

No. Cycylr is a tracking and information tool, not a medical device or a contraceptive method. Talk to a doctor before making contraception or fertility decisions.

Where is my data stored?

On your phone. There is no Cycylr account, and your log isn't sent to our servers.

Something else? Email support@maxenergic.com and include your phone model and Android version.