Comparison

Stardust Period Tracker vs ACLO

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

ACLO

Easily access USC facilities using your smartphone. Simply open the application, scan the provided QR code, and begin your workout. This tool streamlines entry for a convenient fitness experience.

Highlights
  • Smartphone facility access
  • QR code scanning
  • Workout initiation
  • Streamlined entry
Features
Read full description

Get direct access to the USC facilities with your smartphone. Open the app, scan the QR code and start you workout!

Screenshots

Stardust Period Tracker4 screens
ACLO4 screens

Verdict

The call

The clearest difference is review sentiment: Stardust Period Tracker at 55% against ACLO's 0%. Stardust Period Tracker also leads on update cadence (fortnightly vs every 5 weeks) and chart position (#41 vs unranked). ACLO's advantage is in-app purchases (none vs 21) and ads (none vs shown). On price, device support and iOS requirement 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. ACLO asks for nothing beyond the download.

UpkeepUpdate frequency

Stardust Period Tracker ships an update fortnightly, ACLO every 5 weeks. The most recent releases landed on October 28, 2026 and October 20, 2026 respectively.

Scorecard6 real differences · 5 level
Stardust Period Tracker versus ACLO: the parameters behind the verdict, then further details
ParameterStardust Period TrackerACLO
PriceFreeFree
Rating4.8 (120K ratings) — better—
Positive reviews54.8% of reviews — better0.0% of reviews
Number of ratings120K — better—
Update frequencyFortnightly — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#41 — better—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.215.1 — better
Further details — not scored
Size219 MB15 MB
Age rating+124+
DeveloperStardust App LLC (New York)Delcom Productions b.v.

Customer experience

Stardust Period Tracker

All ratings119,765 ratings
Positive94.6%
Neutral2.2%
Negative3.1%
Written reviews3,758 reviews
Positive54.8%
Neutral15.3%
Negative29.9%

ACLO

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

ACLO

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

ACLO

No in-app purchases

Questions

Is Stardust Period Tracker free?
Stardust Period Tracker is free to download, with in-app purchases available.
Is ACLO free?
ACLO is free to download, with no in-app purchases.
Do Stardust Period Tracker or ACLO have ads?
Stardust Period Tracker shows ads; ACLO does not.
Which is updated more often, Stardust Period Tracker or ACLO?
Stardust Period Tracker ships an update fortnightly, and ACLO every 5 weeks. Most recently, Stardust Period Tracker was updated on October 28, 2026 and ACLO on October 20, 2026.

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