Stardust Period Tracker

In-app purchases
23.4K reviews
Content rating
Rated for 3+
1M+
Downloads
Content rating
Rated for 3+
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About this app

Stardust is a free period tracker and cycle tracker that helps you understand your period and every phase of your menstrual cycle. We blend science, ancient wisdom, astronomy, and AI to make period tracking feel simple, intuitive, and meaningful. Track your period, log symptoms, follow hormonal changes, and watch your cycle unfold day by day — Stardust is the cycle tracker that turns daily period tracking into real self-understanding.

We support your full hormonal journey:

Period Tracker & Cycle Tracker
Decode your period and every phase of your menstrual cycle with a period tracker built to feel intuitive.
- Predict your next period and spot PMS patterns before they start
- Personal daily insights based on your menstrual cycle and hormone patterns
- Accurate predictions for your period, PMS, cravings, moods, and fertility
- Enhanced cycle tracking insights using your sleep and activity data

Ovulation Tracker & Trying to Conceive
On your TTC journey, use Stardust as your ovulation tracker to predict your fertile window and understand your cycle on a deeper level.
- Ovulation forecasts and fertility awareness to plan pregnancy
- Follow how your hormones shift across your menstrual cycle, day by day

Pregnancy Tracker — Track your pregnancy week-by-week
Switch into Pregnancy Mode and let Stardust guide your full hormonal journey as your pregnancy tracker.
- Weekly baby growth, with 3D and AR to see your baby's size right in your belly
- Daily affirmations and symptom tracking throughout pregnancy
- Weekly insights on health, exercise, nutrition, and ancient wisdom
- Hormone and moon-based insights with zodiac sign matchups

Sync your cycle with the moon
Stardust goes beyond a standard period tracker to connect your menstrual cycle to the cosmos.
- Tools for cycle syncing and aligning your menstrual cycle with lunar phases
- Moon calendar with symbolism and folklore mapped to your cycle
- Insights that make daily period tracking feel meaningful

Track your cycle together
- Invite partners or close friends to stay in sync with your period, TTC journey, or pregnancy

Privacy at its core
Founded and led by women, Stardust is a period tracker built with privacy at its core. Your cycle data and menstrual cycle history are protected. We never sell or share your personal health information.

PRIVACY POLICY & TERMS OF SERVICE
https://stardust.app/privacy-policy.html
https://stardust.app/terms-of-use.html

CONNECT WITH US
Web - stardust.app
Instagram - @stardust
Tiktok - @stardust.app

Note: Stardust should not be used as a birth control/contraception. The app does not substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider.

If you are having technical issues or have any questions about your cycle, we're here to help. Send an email to [email protected]
Period tracker built by women. Track your menstrual cycle, ovulation & pregnancy
Updated on
Nov 4, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Financial info, App activity, and Device or other IDs
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

23.2K reviews
Sierra
April 20, 2026
So incredibly glitchy and laggy. there have been so many times I've opened this app to quickly check something, or give some information to a doctor, and this app just gives me a blank screen when trying to open it. It's annoying and embarrassing. not to mention the whole issue going around about stardust selling your personal data. It's a shame there aren't any good period apps out there, all of them either suck or sell your information.
34 people found this review helpful
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Stardust App Inc
April 23, 2026
Hi there! We're aware of this spammy ad going around. There is no real lawsuit and these claims are unequivocally false. Please be careful sharing your information with them and rest assured: your data is safe. We have never and never will sell or share data. We completely understand your concerns and are working with our lawyers to address this.
Tiffany Lee
July 19, 2025
It's pretty and seems cool but it incorrectly imported data from Screenshots of my old app (it put all the dates for 2024 into 2023, and turned some periods into one day only) and now thinks I have 100+ day cycles. Can't figure out how to fix this as it doesn't seem to be on the main calendar, just stored somewhere. Really disappointing, it seemed so cool but now it's all just a mess.
11 people found this review helpful
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Stardust App Inc
July 21, 2025
Hi Tiffany, Oh no! So sorry to hear you're experiencing this issue. Could you please reach out to [email protected] and we'll be able to look into this there! Our sincerest apologies for any inconvenience. All the best, The Stardust Team
Ariadne Blayde
November 5, 2026
I am so grateful for this app! I love that it shows my approximate hormone levels throughout the month based on my cycle - it's really helpful in managing my medical condition. The design is really cute too, and I like that it has functionality that allows my partner to track my cycle as well - I can even send him little messages through the app to make sure he knows where I'm at in my cycle and how to support me better. Love it!
Did you find this helpful?
Stardust App Inc
November 10, 2026
Hi Ariadne! Yay! So happy to hear you're loving the app and that it's been so supportive in both tracking your cycle and managing your medical condition :) That makes our team happy to hear! Thanks for leaving a review! All the best, The Stardust Team

What’s new

Sync your cycle to the moon with a safe, fun, privacy-first menstrual calendar