Rosea

Period & Cycle Tracker · iPhone & Android

Your cycle, tracked entirely on your phone.

A private period, fertility and pregnancy tracker. No account. No cloud. Nothing ever leaves your device.

Rosea screenshot
Rosea main screen

The privacy promise

No server to send your data to

Most period apps send your most personal data to servers you'll never see. Rosea has none. Everything you log — cycles, symptoms, moods, pregnancy details, photos and notes — stays on your phone, protected by your device's encryption.

100% offlineEvery prediction is calculated on the device.
No account, everNo email, no sign-up, nothing to create.
No trackingNo analytics and no behaviour tracking of any kind.
Discreet modeAn alternate app icon and neutral notifications.
App lockProtect the app with Face ID or a PIN.
Backup you controlAn encrypted backup file — switch phones with no cloud.

Honest footnote: the free version shows a single non-personalised banner ad served by Google AdMob. Rosea Pro removes ads entirely. Read the full privacy policy.

Everything Rosea does

Gentle, accurate, and entirely yours

See your cycle

Your whole cycle at a glance

  • A living ring shows exactly where you are today — and what comes next
  • Fertile window, ovulation and next-period countdown
  • Daily insights and gentle, optional reminders
Rosea Today screen — a living ring showing the current cycle day

Predictions

A calendar you can actually read

  • Period, fertile window and ovulation — colour and shape coded
  • Predictions that adapt to irregular cycles
  • Cycle-length trends and PMS forecasts from your own logs
Rosea calendar — colour-coded period, fertile window and ovulation

Logging

Log your day in two taps

  • Flow, spotting, symptoms, moods, energy, sleep and water
  • Symptom patterns from your own history
  • Export a clean PDF doctor report whenever you need it
Rosea logging screen — quick flow, mood and symptom logging

Pregnancy

A gentle guide, week by week

  • Week-by-week with daily “baby today” and “you today” cards
  • Kick counter, contraction timer and milestone moments
  • Private bump-photo diary, letters to baby and a hospital-bag checklist
Rosea pregnancy mode — a warm week-by-week companion

Made for you

Made to respect you

  • Light and dark themes, plus home-screen widgets with a discreet variant
  • Optional write-only Apple Health sync
  • BBT charting, cervical-mucus and LH-test logging
Rosea privacy screen — everything you log stays on your phone

Rosea provides estimates and educational content based on what you log. It is not a form of contraception, not a medical device, and not a substitute for professional medical advice.

Pricing

Free forever. Pro when you want more.

The core tracker is free. Rosea Pro unlocks the deeper tools and removes ads — $2.99/month or $19.99/year, cancel anytime.

Free

Everything to track your cycle

  • Cycle tracking & calendar
  • Predictions & daily insights
  • Two-tap logging & reminders
  • Pregnancy journey

Free · one banner ad

Save 44%

Pro

Deeper tools, ad-free

  • Symptom patterns & unlimited cycle history
  • BBT charting & fertility tools
  • Journal, discreet mode & app lock
  • Encrypted backup — ad-free

$2.99/mo · $19.99/yr

Take a look

Rosea, screen by screen

Rosea Today screen — see your whole cycle at a glance on a living ring
Rosea calendar — period, fertile window and ovulation, colour-coded
Rosea logging — log flow, mood and symptoms in two taps
Rosea pregnancy mode — a gentle guide, week by week
Rosea privacy — your cycle stays on your phone, no account or cloud

From the blog

More on Rosea

Questions

Rosea — frequently asked

Is there a period tracker that works without an account?

Yes — Rosea. There is no sign-up, no email and no password, because there is no server to sign in to. You open the app and start logging. Nothing you enter is ever sent anywhere, so there is no account for anyone to breach, subpoena or sell.

Does Rosea work offline?

Completely. Every prediction — next period, fertile window, ovulation day, PMS forecast — is calculated on your phone from your own history. Rosea works in airplane mode, on a plane, or with no signal at all, because it never needed a connection in the first place.

Does Rosea sell or share my cycle data?

No, and it could not if it wanted to. Rosea has no servers and no analytics SDK, so your cycles, symptoms, moods, notes and photos never leave your device. The free version shows one non-personalised banner ad from Google AdMob, which receives no health data from the app.

Is Rosea free?

Yes. Rosea is free to download on the App Store and Google Play, and the core tracker stays free. Rosea Pro removes the ad and unlocks fertility tools, symptom patterns, the journal, discreet mode and encrypted backup for $2.99 a month or $19.99 a year.

Does Rosea work with irregular periods?

Yes. Predictions adapt to your own cycle lengths rather than assuming a textbook 28 days, and the app shows your cycle-length and regularity trends so you can see how variable you actually are. The more you log, the closer the estimates get.

Can I track ovulation and fertility in Rosea?

Yes. Rosea Pro adds basal body temperature charting with automatic coverline confirmation, cervical-mucus logging and LH test results, combined into one fertility view alongside the predicted fertile window.

Can I hide the period tracker on my phone?

Yes. Discreet mode gives Rosea an alternate app icon and neutral notification text, so nothing on your home screen or lock screen announces what the app is. You can also lock the app itself behind Face ID, Touch ID or a PIN.

How do I move my cycle history to a new phone?

Rosea creates an encrypted backup file that you save and move yourself — AirDrop, a cable, a messaging app, wherever you like. Restore it on the new phone and your history comes with you. Because there is no cloud, the file is the only copy, so keep it somewhere safe.

Does Rosea sync with Apple Health?

Optionally, and in one direction only. If you turn it on, Rosea writes your cycle entries into Apple Health on iPhone; it never reads your Health data back. Leave it off and Rosea stays entirely self-contained.

Is Rosea on Android?

Yes. Rosea is available now on both the App Store for iPhone and Google Play for Android, with the same offline design on each.

Is Rosea a contraceptive or a medical device?

No. Rosea provides estimates and educational content based on what you log. It is not a form of contraception, not a medical device, and not a substitute for professional medical advice.

Track your cycle, privately.

Free on the App Store and Google Play.

Questions? hello@nainnielabs.com · Privacy policy