Lía reminds you before your period and on your fertile days, and answers your questions whenever you have them. Free, private, and nothing to download.
No forms, no passwords, no apps cluttering your phone. Just WhatsApp, which you already use every day.
Tap the button and WhatsApp opens with the message ready. Just hit send.
When did your last period start? That’s all she needs. If you don’t remember, Lía helps you figure it out.
Your color-coded month arrives instantly, and Lía reminds you before your period and on your fertile days.
Period, fertile days and the days before your period, color-coded. It updates every time you tell her how you’re doing.
A message before your period starts, so it never catches you off guard.
Your fertile window and estimated ovulation day, month after month.
The more you log, the better she learns your pattern and fine-tunes her estimates.
Late period, cramps, symptoms: ask anytime, no embarrassment.
If something doesn’t look right, Lía connects you with someone from our team, in the same chat.
| CalendarBot | Typical period apps | |
|---|---|---|
| Download and install | ✓ Not needed | ✕ Yes, and it takes up space |
| Create an account and password | ✓ No | ✕ Almost always |
| All features free | ✓ All of them | ✕ Many are paid |
| Ads | ✓ None | ✕ Frequent |
| Answers your questions | ✓ Lía, 24/7 | ✕ Generic articles |
| A real person when you need one | ✓ Yes | ✕ No |
| Your data gets sold | ✓ Never | ? Check their terms |
Your health information is some of the most sensitive data there is. That’s why CalendarBot works with the bare minimum and never shares it with anyone.
Yes. CalendarBot has no premium tier and no hidden fees. All you need is WhatsApp.
No. Everything happens in your WhatsApp: you message Lía and she sends you your calendar and reminders.
Lía is CalendarBot’s assistant. She keeps your calendar, reminds you on time and answers your questions. If something needs attention, she connects you with a real person.
Lía uses your real dates and gets more precise with every cycle you log. They are estimates: they don’t replace a visit with a gynecologist and are not a birth control method.
We only keep what your calendar needs, we never sell it, and you can ask us to delete it anytime.
Yes. Lía works in English and Spanish, in the US and Mexico. Versión en español →
Message Lía and have your calendar in WhatsApp today.
Get my calendar on WhatsApp