Comparison

Stardust Period Tracker vs Her Flo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Stardust Period Tracker

This health app helps you understand and track your menstrual cycle, ovulation, and pregnancy. It combines scientific data with ancient wisdom and astronomy to provide personalized insights and goal manifestation tools. Features include period predictions, symptom tracking, and lunar synchronicity.

Highlights
  • Period and ovulation prediction
  • Pregnancy tracking with AR
  • Daily personalized insights
  • Symptom and mood tracking
  • Lunar cycle synchronization
  • Goal manifestation tools
Features
Read full description

Stardust is a free period, ovulation, and pregnancy tracker that helps you understand your period, hormones, 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. 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 - Get personal daily insights based on your menstrual cycle and hormone patterns - See predictions for your period, PMS, cravings, moods, and fertility - Get 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. - Get ovulation forecasts and fertility awareness to plan pregnancy - Connect wearables like Apple Watch and Oura Ring to track your Basal Body Temperature, or log it manually - Follow how your hormones shift across your menstrual cycle, day by day PREGNANCY TRACKER Pregnancy Mode is Stardust's week-by-week pregnancy tracker. Switch it on to follow your full hormonal journey through pregnancy. - See weekly baby growth, with 3D and AR to view your baby's size right in your belly - Get daily affirmations and symptom tracking throughout pregnancy - Read weekly insights on health, exercise, nutrition, and ancient wisdom - Explore hormone and moon-based insights with zodiac sign matchups between you and your baby SYNC YOUR CYCLE WITH THE MOON Stardust goes beyond a standard period tracker to connect your menstrual cycle to the cosmos. - Use tools for cycle syncing and aligning your menstrual cycle with lunar phases - Explore a moon calendar and zodiac insights with symbolism and folklore mapped to your cycle - Pull a daily card and get readings tuned to your moon, sun, and rising sign, and cycle phase TRACK YOUR CYCLE TOGETHER Invite partners or close friends to stay in sync with your period, TTC journey, or pregnancy. WHO STARDUST IS FOR Stardust is for anyone tracking a period, predicting ovulation on a TTC journey, tracking a pregnancy week by week, following their symptoms and hormones, or wanting a closer connection between their cycle and the moon. 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 https://stardust.app/terms-of-use CONNECT WITH US Web – stardust.app Instagram – @stardust TikTok – @stardust.app Note: Stardust should not be used as birth control or contraception. The app does not substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider. Having technical issues or questions about your cycle? Email support@stardust.app.

About

Her Flo

Track your menstrual cycle, log period dates, flow, symptoms, and notes. This app helps you monitor your health and provide accurate information to your doctor, especially useful for teens and pre-teens experiencing irregular cycles.

Highlights
  • Log period dates and duration
  • Record flow amount
  • Track symptoms and notes
  • Review past logged data
  • Monitor menstrual health
  • Suitable for teens and pre-teens
Features
Read full description

Remember your doctor visits where you were asked when your last period was, and how long it was? And you just couldn’t remember so you had to end up giving the doctor a random estimate. These estimates give doctors unreliable data, which means an unreliable diagnosis. And perhaps there was that one time when your period was extremely painful, or there was a very unusual symptom, but you never really noticed. These small details are very important for your health, and giving the right information can prevent problems in your periods from becoming worse. Her Flo will help you exactly with that. Using our app, users can log their periods, and enter information such as their period date, flow amount, symptoms, and additional notes. The user can also take a look at previous symptoms that they logged, and check for anything unusual or odd in their periods. 9-14% of women have irregular periods*. That means around 535 million women suffer from periods that they can’t fully be prepared for. This leads to several problems… * Many women don’t even notice these irregularities between their busy lives, and miss signs that there is something unhealthy about their periods. * On top of that, young pre-teen girls who just had their first periods are confused. They have just experienced painful cramps, headaches, and more. * Most girls have irregular periods in their first few years, because their body is still new to this and doesn’t have a set schedule. It also reacts in different ways, and for some, these can be concerning. * And with their eventful teenage lives, these unpredictable and harsh periods just make things worse. Her Flo helps women of all ages, especially pre-teens and teens monitor their periods and stay healthy. So next time your doctor asks these questions, you can give them a confident and reliable answer just by checking the previous data you entered. *Source: Penn Medicine 2020

Screenshots

Stardust Period Tracker4 screens
Her Flo4 screens

Verdict

The call

The clearest difference is review sentiment: Her Flo at 100% against Stardust Period Tracker's 55%. Her Flo also leads on in-app purchases (none vs 21) and ads (none vs shown). Stardust Period Tracker's advantage is ratings volume (119K vs 6) and chart position (#45 vs unranked). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stardust Period Tracker sells 20 in-app purchases, starting at $2.99 per 7 days. Her Flo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Her Flo holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Stardust Period Tracker has 119K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 55% of Stardust Period Tracker's written reviews are positive against 100% of Her Flo's.

Scorecard8 real differences · 3 level
Stardust Period Tracker versus Her Flo: the parameters behind the verdict, then further details
ParameterStardust Period TrackerHer Flo
PriceFreeFree
Rating4.8 (119K ratings)5.0 (6 ratings) — better
Positive reviews54.8% of reviews100.0% of reviews — better
Number of ratings119K — better6
Update frequencyFortnightly—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#45 — better—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.211 — better
Further details — not scored
Size213 MB49 MB
Age rating12+4+
DeveloperStardust App LLC (New York)Busy Buzzy Bots Inc.

Customer experience

Stardust Period Tracker

All ratings119,215 ratings
Positive94.6%
Neutral2.2%
Negative3.1%
Written reviews3,729 reviews
Positive54.8%
Neutral15.3%
Negative29.9%

Her Flo

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Stardust Period Tracker

Reported bugs

5 issues
  • Logging out and losing all user data
  • Inability to update or adjust cycle information
  • Calendar and cycle predictions not syncing correctly
  • Notifications not working as expected
  • Certain features/sections not loading properly

Requested features

6 requests
  • Add more symptom and mood tracking options
  • Implement graph/chart view to visualize cycle data
  • Allow custom notes and reminders
  • Provide more personalized insights and recommendations
  • Improve sync and data backup functionality
Show 1 more
  • Offer more inclusive language and features for diverse users

Her Flo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

20 purchases

Stardust Period Tracker

Subscriptions20
  • All Access$2.997 Days
  • All Access$3.991 Month
  • All Access$4.991 Month
Show 17 more
  • Monthly Plan2 variants$6.991 Month
  • Monthly plan with 7 day trial7 Days trial$6.991 Month
  • All Access$24.991 Year
  • Annual plan with 7-days trial7 Days trial$24.991 Year
  • $24.99/year with 3-days trial3 Days trial$24.991 Year
  • Annual Plan7 Days trial$29.991 Year
  • Annual Plan with 1 month trial1 Month trial$29.991 Year
  • Annual Plan with 3-days trial3 Days trial$29.991 Year
  • Stardust All Access1 Year trial$29.991 Year
  • All Access$39.991 Year
  • Annual Plan with 7-days trial7 Days trial$39.991 Year
  • Stardust All Access1 Year trial$39.991 Year
  • Annual Plan with 3-days trial3 Days trial$39.991 Year
  • Annual plan with 7-days trial7 Days trial$49.991 Year
  • $49.99/year$49.991 Year
  • $89.99/year with 7-day trial7 Days trial$89.991 Year
  • $89.99/year$89.991 Year
None

Her Flo

No in-app purchases

Questions

Is Stardust Period Tracker free?
Stardust Period Tracker is free to download, with in-app purchases available.
Is Her Flo free?
Her Flo is free to download, with no in-app purchases.
Which has better reviews, Stardust Period Tracker or Her Flo?
Her Flo is rated higher. Stardust Period Tracker averages 4.8 out of 5 from 119K ratings, while Her Flo averages 5.0 from 6 ratings.
Do Stardust Period Tracker or Her Flo have ads?
Stardust Period Tracker shows ads; Her Flo does not.

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