Stardust Period Tracker

In-app purchases
4.5
20.1K reviews
1M+
Downloads
Content rating
Everyone
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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, discover how your cycle flows day by day, and sync with the moon.

Whether you’re predicting your next period, spotting PMS patterns, or deepening your relationship with your menstrual cycle, Stardust is the cycle tracker that turns daily period tracking into real self-understanding.
Beyond period tracking, Stardust also supports ovulation prediction, fertility awareness, and pregnancy tracking. Use this cycle tracker to find fertile windows, plan or avoid pregnancy, track pregnancy symptoms, and explore how your cycle and hormones sync with the moon. From ovulation forecasts to Pregnancy Mode, Stardust goes beyond a standard period tracker to support your full hormonal journey.

Key features:
• Personal daily insights based on your menstrual cycle and hormone patterns
• Accurate predictions for your period, PMS, cravings, moods, and fertility
• Social cycle tracker to sync period tracking with friends
• Tools for cycle syncing and aligning your menstrual cycle with lunar phases
• Moon calendar with symbolism and folklore mapped to your cycle
• Invite partners to stay in sync with your period and hormonal voyage
• Enhanced cycle tracking insights using sleep data

Pregnancy Mode is now available
• 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

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 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 support@stardust.app
Updated on
Mar 10, 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

4.5
19.9K reviews
C Squared
September 2, 2024
I just downloaded this app, coming from clue, but the app is so laggy and buggy it's unusable. I was able to track symptoms on 2 different days before the app stopped saving the symptoms I enter. It's also extremely slow and laggy, takes forever to refresh, and sometimes the whole thing will freeze, it'll be totally unresponsive, links won't work, etc. It's...really bad. Like. Really really bad.
43 people found this review helpful
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Stardust App Inc
September 3, 2024
Hello, Oh no! So sorry to hear you're experiencing these issues. Could you try updating the app and see if that resolves this? Please reach out to support@stardust.app and we'll be able to look into this there, our sincerest apologies for any inconvenience. All the best, The Stardust Team
Annabella Bugajski
September 7, 2024
I like many features of this app, but period tracking leaves much to be desired. it is incapable of back dating period start dates (ex. if I input my start date on my second day, it still sets "day 1" for a later date, which makes it impossible to provide accuracy) which is frustrating when i am trying to use this app to calculate my phases. Might delete just because it is so inconsistent.
34 people found this review helpful
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Stardust App Inc
September 9, 2024
Hi Annabella, Thanks so much for bringing this issue to our attention! Please reach out to support@stardust.app and we'll be able to troubleshoot this there. Our sincerest apologies for any inconvenience! All the best, The Stardust Team
LeeLee Bug
March 5, 2026
I really wish there was an actual "Delete" button for individual periods and a way to type in the month you want to go to. Uploading my screenshots didn't work out when transferring my cycles (2-3 years) so I put them in manually. However I go back to double check and there's random 1-day periods. I assume that's from when it tried to read the screenshots and inserted the ovulation days instead. I really don't want to have to delete this account/erase the data and start over.
Did you find this helpful?
Stardust App Inc
March 5, 2026
Hi there! Thanks so much for leaving a review and for your feedback. We're so sorry this was your experience with our app so far. This has been shared with the team. If you think of anything else or have any questions, please let us know at support@stardust.app. All the best, The Stardust Team

What’s new

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