fabmapp com Open the app →

An easy way
to chart
your cycle.

A daily cycle tracker for everyone wanting to chart their cycle. Free.

Open the app → How it works

Free forever No account Works on any device

Private by default. Your cycle marks stay on your device.
Works on any device. Phone, tablet, or laptop.

Made for everyone wanting to chart their cycle.

  1. 01

    Free forever.

    Paid for by the RRM Foundation, a nonprofit.

  2. 02

    Easy to understand.

    Written in plain language.

  3. 03

    No sign-up involved.

    Open it on whatever device you have with you.

It's easy to use.

Less than a minute to chart your day.

  1. Open fabmapp.com

    Type fabmapp.com into your browser.

  2. Mark what you saw

    A few quick taps record what you observed today.

  3. Read your chart

    The History page shows what you marked. You read the pattern.

Questions people ask.

Is fabmapp.com birth control?

No. fabmapp.com is a chart that remembers what you mark. If you want to use fertility awareness for family planning, learn it from a trained teacher first.

Will anyone see what I mark?

No. What you mark stays on your device.

Is it really free?

Yes. fabmapp.com is paid for by a nonprofit, the RRM Foundation.

What does "fabm" mean?

FABM stands for Fertility Awareness-Based Methods. fabmapp.com is named after them. Read more at RRM Academy.

Does fabmapp.com work without internet?

After your first visit, yes. fabmapp.com saves a copy on your phone so it opens even with no signal.

Who made this

Built by the RRM Foundation.

fabmapp.com is built and maintained by the RRM Foundation, a 501(c)(3) nonprofit (EIN 93-4594315). RRM Foundation makes accessible cycle tools and fertility education.

Visit RRM Academy → Support RRM Foundation →