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Menstrual cycle

Understand your cycle, phase by phase

Log your period and symptoms in seconds, see which phase you're in and what comes next. Predictions adjust to your real cycle — and if your period is late, Nuya shows “N days late” instead of pretending it arrived.

Download on the App StoreSee how it works
  • Predictions that learn from your cycles
  • Delays shown honestly, never made up
  • Phases alongside sleep, energy, and mood
Cycle

What you can do

Log in seconds
Record the day's flow and symptoms — including through a quick daily pop-up that stays out of your way.
Understand your current phase
Menstrual, follicular, ovulation, or luteal: the phase page shows what's happening now and what comes next.
Predict your next cycles
Predictions use your cycles' real length and adjust over time — Nuya tells you when it learns something new.
Get phase reminders
Notifications before each phase and on the day it starts — and you control which ones you get.

How it works

1
Log your period
Mark your period days and flow — it takes seconds and you can adjust it later.
2
Nuya maps your phases
From your logs, it builds your phase calendar and the prediction for your next cycles.
3
Log symptoms in the pop-up
A quick pop-up asks how you're doing — and what you log also lands in your symptom diary.
4
See patterns and get alerts
Follow your cycle's patterns — not an average's — and get alerts before each phase and on the day.
Adaptive prediction

Your cycle, not an average

Every body has its own rhythm. If your cycles run 30 days instead of 28, Nuya notices and adjusts the next predictions — and tells you when it learns something new about you.

  • Predictions calculated from your own logs
  • Adaptive length: 28, 30 — whatever yours is
  • A heads-up whenever the prediction adjusts
Honest about delays

The truth, with no invented data

If your period hasn't arrived by the predicted date, you see “N days late” — instead of an app pretending it came. Your logs are the only source of truth.

  • “N days late” instead of a made-up period
  • A period is only recorded when you log it
  • Predictions treated as estimates — and shown as such
Connected cycle

Phases alongside sleep, energy, and mood

Your cycle doesn't live in an isolated tab: it shows up on the Home screen, connects with sleep, energy, and mood in your insights, and joins the history you can bring to appointments.

  • Home chip, like “Day 21 · Luteal phase”
  • Insights connecting cycle with sleep, energy, and mood
  • What you log in the pop-up also lands in your symptom diary
  • A history ready to bring to your appointment
Built for privacy: your data is yours, protected under LGPD (Brazil's data-protection law). You control what goes in and can delete everything at any time. Privacy Policy

Frequently asked questions

Is Nuya's Cycle area paid?

No. Nuya is free on the Brazilian App Store, and cycle tracking is part of the app.

Is there an Android version?

For now, Nuya is available only for iPhone (iOS).

Can I use the predictions as contraception?

No. Predictions are estimates based on your own logs — they are not a contraceptive method or a diagnosis. For contraception, talk to your gynecologist.

My cycle isn't 28 days. Does the app work for me?

Yes. Nuya learns your cycles' real length — 30, 32, whatever it is — adjusts the predictions, and tells you when it learns something new.

I'm pregnant or breastfeeding. What now?

Sign-up asks about it, and the experience adjusts: phases and predictions that don't make sense right now are suppressed.

Is my cycle data protected?

Yes. Cycle data is sensitive data and is handled under LGPD, Brazil's data protection law. It's yours: you can delete everything whenever you want and reach us at suporte@saluorg.com.

Does Nuya detect health problems in my cycle?

No. Nuya organizes your logs and shows patterns, but it doesn't diagnose. If your cycles are persistently irregular, see a gynecologist.

Nuya organizes and clarifies your health information. It doesn't diagnose and doesn't replace your doctor.

Start understanding your cycle today

Download Nuya free on the App Store, log your period, and watch your phases take shape.

Download on the App StoreAll solutions