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Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Period Tracker Period Calendar vs Stardust Period Tracker

Period Tracker Period Calendar 4.9★ · Free + IAP 75
Winner Period Tracker Period Calendar
Stardust Period Tracker 4.8★ · Free + IAP 60

Period Tracker Period Calendar is a better choice for reliable period tracking and a broader range of free features, despite some users reporting issues with unexpected charges and ads, while Stardust Period Tracker offers a more aesthetically pleasing and 'witchy' experience but is plagued by performance issues and more features locked behind a paywall.

Full reviews: Period Tracker Period Calendar · Stardust Period Tracker

Period Tracker Period Calendar is generally praised for its accuracy and helpful features, particularly for younger users, though it faces criticism for its aggressive monetization and occasional technical issues. Stardust Period Tracker offers a unique, aesthetically driven experience with astrology integration, but many users report significant problems with app performance, data loss, and a high number of features requiring a paid subscription.

Head to head

Accuracy and Reliability edge: Period Tracker Period CalendarR8R55R57R29
Period Tracker Period Calendar Many users find Period Tracker Period Calendar to be highly accurate in predicting periods and ovulation, with some noting it's 'spot on' and 'never failed' them R8R55R57R29. It's also seen as helpful for tracking PCOS symptoms R15. However, some users with irregular periods find it doesn't adjust well and can be confusing .
Stardust Period Tracker Stardust Period Tracker is described as 'extremely accurate' by some users , and helpful for those with irregular cycles by not using 'fear tactics' . Conversely, a significant number of users report that its tracking is 'completely inaccurate' and 'doesn't track properly,' especially for irregular cycles .
Features and Content edge: Period Tracker Period CalendarR47R54R58R15
Period Tracker Period Calendar Period Tracker Period Calendar offers a wide range of features including symptom logs, cramp relief tips, breast exam tutorials, and a partner sharing option R47R54R58R15. It also has a 'teen plan' and educational content . Some users desire custom symptoms and better tag search functionality .
Stardust Period Tracker Stardust Period Tracker is noted for its unique, aesthetically pleasing interface and integration of astrology, horoscopes, and tarot cards . It also includes a partner option R116. However, some users dislike the astrology focus and wish they could turn it off . Many key features, including detailed cycle phase information, are locked behind a paywall .
Ease of Use and Performance edge: Period Tracker Period CalendarR17R20R60R1
Period Tracker Period Calendar Many users find Period Tracker Period Calendar 'very practical and easy to use' R17R20R60. However, some recent updates have led to it being described as 'confusing' R1. There are also reports of the app being difficult to download and issues with restoring data .
Stardust Period Tracker Stardust Period Tracker is praised for its 'pretty' and 'easy to use' interface . However, a major recurring complaint is the app's slowness and frequent glitches, with users reporting long loading times, freezing, and crashes R80R92R97R100. Users also face issues with logging in and account creation .
Price and Value tieR5R4R34R36
Period Tracker Period Calendar Period Tracker Period Calendar is advertised as free to download and use, with many users appreciating its free features R5. However, a significant number of users report being unexpectedly charged for subscriptions, sometimes as much as $50 monthly or £35-£40 yearly, without clear consent R4R34R36. Some users also complain about ads in the free version .
Stardust Period Tracker Stardust Period Tracker is also free to download but heavily criticized for locking most 'special' or 'unique' features behind a paywall . Users feel that the paid version doesn't offer enough value, with some reporting being charged after canceling free trials and then losing access or data .
Privacy and Security tieR12R13R24R50
Period Tracker Period Calendar There are serious concerns about Period Tracker Period Calendar regarding security, with multiple reports of users being redirected to scam pages, receiving virus warnings, and even one instance of a device needing a reset due to a suspected virus from the app R12R13R24. One user also noted a sudden request for 'hundreds of cookies and trackers' R50.
Stardust Period Tracker Stardust Period Tracker has some users concerned about data privacy, with one user stating the app 'so obviously sold out and are mining data' R97. There are also multiple reports of users' data being randomly deleted or lost .
Pick Period Tracker Period Calendar if

You prioritize accurate period prediction and a wide array of helpful features, especially if you are a younger user or need to track PCOS symptoms R8R15R35R47. You are willing to navigate potential issues with ads or carefully manage subscriptions to avoid unexpected charges R5.

Pick Stardust Period Tracker if

You are drawn to a unique, aesthetically pleasing app with astrology, horoscope, and tarot integrations, and you don't mind paying for premium features to enhance this experience R116. You are looking for an app that avoids 'fear tactics' for irregular cycles .

Evidence note: Both apps have a significant number of negative reviews related to monetization, with users reporting unexpected charges or many features being paywalled. Stardust Period Tracker has a notable number of complaints about app performance and data loss, which are critical issues for a tracking app.

Frequently asked

Is Period Tracker Period Calendar truly free?
Period Tracker Period Calendar is free to download and offers many core features without charge, with users praising it for being 'accurate and informative' and 'free' R5. However, many users report unexpected charges for subscriptions, sometimes up to $50 monthly or £35-£40 yearly, without clear consent, and ads are present in the free version R4R34R36.
Does Stardust Period Tracker have performance issues?
Yes, Stardust Period Tracker is frequently criticized for significant performance issues, including being 'very slow,' 'laggy,' and prone to freezing or crashing R80R92R97R100. Users report long loading times and glitches that make the app unusable at times R80.
Can I share my cycle with a partner using these apps?
Period Tracker Period Calendar allows users to share their cycle information with a partner R15R58. Stardust Period Tracker also offers a partner option, though one user noted it wouldn't allow them to track with their girlfriend and found it 'heteronormative' R111R116.
Are these apps suitable for younger users?
Period Tracker Period Calendar is highly recommended for younger users, with several reviews from 10-year-olds and those just starting their periods finding it very helpful and easy to use R27R35R37R45. Stardust Period Tracker, however, has an age restriction that prevents users younger than 13 from inputting their real age, leading to frustration for some pre-teen users .

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R8] Period Tracker Period Calendar 5/5 · US Five stars: So this app predict my period perfectly the exact day. It’s also helping me with my acne problem, so it’s it just blew my mind.
  2. [R55] Period Tracker Period Calendar 5/5 · US Great: I love this app. Almost head on accurate all the time.
  3. [R57] Period Tracker Period Calendar 5/5 · US Accurate: Never failed me. I love this app
  4. [R29] Period Tracker Period Calendar 5/5 · US On point guesses: I love this app. The tracker is mostly on point. checking in on how we feel every time I open the app makes me feel like it’s a step to it getting to know me more about my cycle!
  5. [R47] Period Tracker Period Calendar 5/5 · US AMAZING APP.: I recently got my first period and decided to try out this app! There’s symptom logs, a cute little calendar, positions to relieve period cramps, and even an at home breast exam tutorial! Amazing app, honestly!
  6. [R54] Period Tracker Period Calendar 5/5 · US I love this app: This app is so accurate, not only does it show you when your period starts and shows you how to stop cramps,acne, and other symptoms you get in your period. It shows you different exercises and they work. Get this app if you want to feel great on your period and actually know when your period is going to start!
  7. [R58] Period Tracker Period Calendar 5/5 · US Must have!: It’s pretty spot on with its predictions. It took a few months of entering it in. I like having a partner feature. I don’t plan on getting pregnant. I like my man knowing my cycle.
  8. [R15] Period Tracker Period Calendar 3/5 · GB Good app: I’ve used this app for years and it helps me track my period, PCOS symptoms and my medication, which I can share with my partner. Recently though I’ve been getting daily notifications for a quiz that not only am I not interested in doing, but I also can’t seem to disable it or stop the notifications. Not sure if it’s a bug but if there’s an option to disable to quiz, that’d be perfect.
  9. [R17] Period Tracker Period Calendar 5/5 · US Excelente app: Muy practica y fácil de usar
  10. [R20] Period Tracker Period Calendar 5/5 · US The app is very practical, easy to use. · translated
  11. [R60] Period Tracker Period Calendar 5/5 · US Amazing: So helpful and very easy to understand
  12. [R1] Period Tracker Period Calendar 1/5 · US Confusing: Honestly, I do not like this one go back to the old one. This one is too confusing.
  13. [R5] Period Tracker Period Calendar 5/5 · US .: Great App , Not Only is it Accurate And informative But it’s Free!!
  14. [R4] Period Tracker Period Calendar 1/5 · US Price: So I’d like to say most of this app is free. It’s free to download and it’s free to use. But behind doors. They charging u almost 50$ monthly that I keep getting charged on apple. For an app that supposedly is free. I don’t recommend downloading or using unless u want to get charged. Need I remind u it never said anywhere id get charged to use the app.
  15. [R34] Period Tracker Period Calendar 1/5 · GB Bad App Dont buy it: They transferred my money straight to my bank account without my consent, and I didn't even intend to make that payment. As I have been experiencing my period continuously for more than I expected, I filed a complaint with the App Store, but they informed me that I cannot receive a refund of £35. I feel very confused and frightened since my period is regular. And I still get m
  16. [R36] Period Tracker Period Calendar 1/5 · GB False advertising: Says the app is free just got charged £35.99 for something I did not agree to how can that price even be justified
  17. [R12] Period Tracker Period Calendar 3/5 · GB Please be careful: This app is great. Very accurate and very good. But please be careful today I was taken to a page on safari by the apps trying to get me to click a link to clear viruses given to me by the app. Obviously this is a scam and I did not click this link. If you use this app because it is great make sure you don’t click anything that looks suspicious.
  18. [R13] Period Tracker Period Calendar 1/5 · US Do not download!!!!: The app was fine at first but then I couldn't get out of the app so i turned off my device and I couldn't get out of the lock screen or use the shortcuts on the lock screen so I had to reset it. Turns out i got a virus on my device😭😭
  19. [R24] Period Tracker Period Calendar 1/5 · GB Virus message: Logged on this morning & the message button was flashing red. Clicked on it and it opened a Google message with a count down timer saying my phone had been infected with a virus and I had to click the button below to save my files etc I deleted the app but wanted to notify developers - seemed linked to safari as same message was there when I went to safari to search if app had been
  20. [R50] Period Tracker Period Calendar 2/5 · GB Cookies: I've been using this tracker for years, also through my pregnancy. Then one day, the request for hundreds of cookies and trackers popped up. This is a deal breaker for me. What a shame. I would have preferred to pay for the app than to sign my privacy away.
  21. [R80] Stardust Period Tracker 4/5 · US Go-to tracker: Only taking a star off because when I need the tracker the most, the opening screen just reloads again and again. Currently sitting here, wondering if these cramps are my cycle or not and the app won’t open. This happens often enough that it’s become more of an inconvenience to have the app than not. Aside from this glitch, love the app and all of the details.
  22. [R92] Stardust Period Tracker 4/5 · US great but laggy: the app is great, it’s usually pretty accurate and it’s fun to use, but it gets really laggy and can cause my entire phone to crash on occasion. I also had this bug where it would ask to send notifications every time i opened the app, which became annoying really fast
  23. [R97] Stardust Period Tracker 1/5 · US sold out: used to love this app. they so obviously sold out and are mining data every time you use the app. it runs incredibly slow.
  24. [R100] Stardust Period Tracker 1/5 · US Slowest app of all time.: This app seriously takes wayyyyyyyyyyyyyyyyyy too long to load. By the time it’s loaded I could’ve traveled to Egypt. It’s slower than a tortoise, slower than a snail, Slower than me when I’m running on zero hours of sleep and some Dr Pepper. I’m so finding a different tracker.
  25. [R111] Stardust Period Tracker 3/5 · US Heteronormative: Will not let me girlfriend and I be partners and track each others periods. Disappointed. I expected better.
  26. [R116] Stardust Period Tracker 5/5 · US Clearly made by women!!: I love this app, it contains so much information and the options for symptoms are very versatile. More than i’ve ever seen!! The app itself has mini quizzes, horoscopes, tarot cards etc. that just make being on your period so much more fun! The partner option is amazing aswell. I do wish we could access more without the premium option 😭 i completely understand why it’s the
  27. [R27] Period Tracker Period Calendar 5/5 · US for younger people: I’m a 10 year-old I got my period and this is really helping tracking it
  28. [R35] Period Tracker Period Calendar 5/5 · US Slay: So I just got my first period and it was hard but this app is helping a lot
  29. [R37] Period Tracker Period Calendar 5/5 · US Really good: It really helps with my Period I’m a young lady so 5. Stars
  30. [R45] Period Tracker Period Calendar 5/5 · US 5 star experience: After trying to find a period app suitable for my age that was nice and clear I found period tracker please get this app

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store