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

Period Tracker Period Calendar vs Ovia Cycle & Pregnancy Tracker

Period Tracker Period Calendar 4.9★ · Free + IAP 55
Winner Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker 4.8★ · Free to download 65

Ovia Cycle & Pregnancy Tracker is the better choice for comprehensive, ad-free tracking, despite recent update issues, while Period Tracker Period Calendar is plagued by aggressive monetization and privacy concerns.

Full reviews: Period Tracker Period Calendar · Ovia Cycle & Pregnancy Tracker

Period Tracker Period Calendar is praised for its accuracy and ease of use, especially for younger users, but faces significant criticism for hidden subscription charges and intrusive ads. Ovia Cycle & Pregnancy Tracker offers extensive features for cycle and pregnancy tracking, but recent updates have led to data loss, UI changes, and performance issues.

Head to head

Accuracy and Prediction edge: Period Tracker Period CalendarR8R11R27R35
Period Tracker Period Calendar Period Tracker Period Calendar is highly praised for its accuracy in predicting periods, with many users stating it's 'perfectly' or 'mostly on point' R8R11. It helps users, including young girls, understand their cycles R27R35. However, some users with irregular periods find it less effective, as it struggles to adjust predictions if the period doesn't arrive on the assumed day .
Ovia Cycle & Pregnancy Tracker Ovia Cycle & Pregnancy Tracker is also noted for its accuracy in period predictions, with users stating it 'didn’t get a single date wrong' and is 'mostly accurate' . However, some users report that ovulation guesstimates can be off by as much as a week . It also struggles with irregular cycles, requiring manual input and separate calculations, and may not accurately adjust LMP or conception dates .
Ease of Use and Interface tieR1R6R9R17
Period Tracker Period Calendar Many users find Period Tracker Period Calendar 'very practical and easy to use' R17, with a clear interface suitable for younger users . However, a significant number of recent reviews describe the app as 'confusing' or prefer the 'old one' R1R9. Some users also wish for custom symptom and mood tracking options R6.
Ovia Cycle & Pregnancy Tracker Ovia Cycle & Pregnancy Tracker is generally considered to have an 'easy interface design' and is 'easy to follow, log' . Users appreciate its simplicity and functionality . However, recent updates have made the app 'ugly' for some, removing beloved color themes and backgrounds . Some also find the home page cluttered with 'constant pop-ups' and the setup 'painful' , or the app 'unintuitive' for basic period tracking .
Features and Content edge: Ovia Cycle & Pregnancy TrackerR6R15R22R26
Period Tracker Period Calendar Period Tracker Period Calendar offers features like symptom logs, cramp relief tips, breast exam tutorials, and a partner sharing feature R15. It also has a 'teen plan' . However, some users report issues with searching custom tags R6 and a lack of options for menopause tracking R26. One user also noted insensitive language and articles R22.
Ovia Cycle & Pregnancy Tracker Ovia Cycle & Pregnancy Tracker provides extensive resources including community chats, self-care checklists, a library of articles and videos, food safety lists, and baby milestone tracking . It allows tracking of 'XXX rated activities' . However, the app is criticized for not customizing language or information for twin pregnancies or surrogacy . Some users find the content inconsistent , basic, outdated, or even false , and one review noted 'political language' . There are also requests for a dark mode and more medical conditions .
Reliability and Performance tieR7R12R13R24
Period Tracker Period Calendar While many users find Period Tracker Period Calendar reliable for predictions , there are serious concerns about app stability and security. Users report being unable to exit the app, leading to device resets R13, and experiencing scam pop-ups or virus messages R12R24. Data restoration is also a significant issue, with users losing years of data after phone resets or OS changes R7.
Ovia Cycle & Pregnancy Tracker Ovia Cycle & Pregnancy Tracker has faced significant reliability issues, particularly after recent updates. Users report major bugs, with the app taking 'way too long to load' or displaying 'something went wrong please retry' errors frequently . A critical problem is the loss of historical data, with many users stating their 'years of tracking gone' or data not transferring to new phones or after app merges R61R70R73R81.
Price and Value edge: Ovia Cycle & Pregnancy TrackerR4R5R18R21
Period Tracker Period Calendar Period Tracker Period Calendar is advertised as free, and many users appreciate this R5. However, a large number of recent reviews accuse the app of 'false advertising' and being a 'subscription trap,' with users being charged significant amounts (e.g., $50 monthly, £35, £35.99, £39) without consent or clear notification R4R18R21. Some users also complain about excessive ads in the free version .
Ovia Cycle & Pregnancy Tracker Ovia Cycle & Pregnancy Tracker is widely praised for being free, with users stating it's '100 percent free' and they've 'never been asked for $' even after 10+ years . Users appreciate that it doesn't have 'aggressive pushing to subscribe' or ads .
Privacy and Support tieR12R13R24R40
Period Tracker Period Calendar Period Tracker Period Calendar has severe privacy and security concerns, with users reporting scam pop-ups, virus messages, and the app leading to device issues R12R13R24. One user noted a request for 'hundreds of cookies and trackers' as a deal breaker R50. There are also complaints about difficulty contacting support or getting refunds for unauthorized charges R40.
Ovia Cycle & Pregnancy Tracker Ovia Cycle & Pregnancy Tracker has raised privacy concerns, with one user noting it 'uses your location and identity' and 'tracks what state you live in,' which could be used as evidence in states with abortion restrictions . Users also report poor or no response from customer service regarding data loss and app bugs .
Pick Period Tracker Period Calendar if

You prioritize highly accurate period predictions and a simple interface, especially if you are a younger user just starting to track your cycle R8R27R35.

Pick Ovia Cycle & Pregnancy Tracker if

You need a comprehensive tracker for both cycles and pregnancy, with extensive resources, community features, and a commitment to being entirely free and ad-free .

Evidence note: Period Tracker Period Calendar has a higher lifetime rating, but a significant number of recent reviews are highly negative, focusing on unauthorized charges and privacy issues, which skews the comparison. Ovia's recent negative reviews are primarily about UI changes and data loss due to updates, rather than monetization.

Frequently asked

Is Period Tracker Period Calendar truly free?
While Period Tracker Period Calendar is free to download and initially use, many users report being charged significant monthly or yearly subscription fees (e.g., $50 monthly, £35, £35.99, £39) without clear consent or notification, leading to accusations of 'false advertising' and being a 'subscription trap' R4R34R36R40.
Can I transfer my data between devices or after updates with Ovia?
Many Ovia users have reported significant issues with data transfer, losing years of historical data when switching to a new phone, after recent app updates, or when the separate Ovia apps were merged R61R70R73R81.
Are there privacy concerns with either app?
Period Tracker Period Calendar has serious privacy and security concerns, with users reporting scam pop-ups, virus messages, and requests for 'hundreds of cookies and trackers' R12R13R24R50. Ovia Cycle & Pregnancy Tracker has also raised privacy concerns, as it tracks user location and identity, which some users worry could be used in states with abortion restrictions .

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. [R11] Period Tracker Period Calendar 5/5 · US Period tracker: The most helpful app it tells me when it happens and all that
  3. [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
  4. [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
  5. [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.
  6. [R6] Period Tracker Period Calendar 3/5 · US can’t search tags: i’ve been using this app since 2017 and really have just been using it for the period tracker option which has been great. but lately i’ve been using the “diary” more often to track my cravings. i created my own tag “#appetite” but when i search in the timeline for this tag, it says there’s “no search results”. also i wish we could add custom symptoms, moods, etc. because i’m al
  7. [R9] Period Tracker Period Calendar 3/5 · US 😬: confusing.
  8. [R17] Period Tracker Period Calendar 5/5 · US Excelente app: Muy practica y fácil de usar
  9. [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.
  10. [R22] Period Tracker Period Calendar 1/5 · GB Poor choice of adjectives: The app is useful and functional like any other tracking app available these days. The reason I first started using it was the feature to add notes and all the categories to record mood or symptoms and things like that. However recently I have noticed the kind of adjectives they use and some of the articles they share are triggering and very insensitive to anxious women
  11. [R26] Period Tracker Period Calendar 2/5 · GB New phase in life means it’s no longer useful: Other than the stupid pet thing this has been a good tracker, up until menopause. There is no way I can put ‘missed period’ without pretending I’m pregnant. It has technically not added a period but it has started counting from day 1 again. For this reason I will be deleting it. 2 stars because women in this stage of life often feel forgotten and this
  12. [R7] Period Tracker Period Calendar 1/5 · US Decepcionante: Cambié de Android a iOS, anteriormente ya había pagado para “eliminar anuncios para siempre” o hasta que cambies de SO. No hay nada que hacer, solo volver a pagar. Tengo años usando la app y me gustaba, pero con eso la verdad ya no.
  13. [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.
  14. [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😭😭
  15. [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
  16. [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.
  17. [R5] Period Tracker Period Calendar 5/5 · US .: Great App , Not Only is it Accurate And informative But it’s Free!!
  18. [R18] Period Tracker Period Calendar 3/5 · GB Good but kinda confused rn: I just started my period and I was just like maybe i should get a app. So everything except really well and I also get to choose my avatar and everything and it was like really cool because like you got to have fun and all that kind of stuff and I told you accurately when your new period and like it was really fun and everything but then like they kept on like writing m
  19. [R21] Period Tracker Period Calendar 3/5 · GB Good but…: It’s a good app but I don’t like how of I want access to the full version of the app I have to pay
  20. [R40] Period Tracker Period Calendar 1/5 · GB Took £39 - A subscription trap: Really gutted. I’m struggling with money as it is. Lost my job due to seizures and getting in to debt :( I really could have done without this. Got in touch but no reply. If this got sorted, I’d happily change the review to 5* because the app itself is actually great. Just so upset to be charged so much money that I really need.
  21. [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
  22. [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
  23. [R61] Ovia Cycle & Pregnancy Tracker 1/5 · US Good until update: I like this app but the recent update messed up the counts on past cycles so now they all say 59 or 59 or whatever days.
  24. [R70] Ovia Cycle & Pregnancy Tracker 1/5 · US What happened to this app?: I’ve used this app for at least 5 years to track my periods. No longer will it tell you how many days you are into/between your cycle(s), or even show when your next expected one is. Useless now.
  25. [R73] Ovia Cycle & Pregnancy Tracker 1/5 · US Didn’t transfer data to new phone recorded 4 years for nothing: What happened:(
  26. [R81] Ovia Cycle & Pregnancy Tracker 3/5 · US Data transfer issues: Why doesn’t my previous data transfer over when I add a pregnancy? My previous periods are no longer on the calendar.
  27. [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.

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