Verithiathe honest score on any app
Updated July 2026 · real, multi-region App Store reviews
The verdict on

Natural Cycles Fertility App

65
User verdict / 100 High confidence Divided

Natural Cycles is highly effective for fertility tracking and natural birth control, especially when paired with an Oura Ring, but recent significant price increases, persistent app glitches, and frustrating subscription cancellation policies are causing user dissatisfaction.

4.8★ lifetime (29,486) Free + in-app purchases since 2013 by NaturalCycles Nordic AB updated 0.1 mo ago recent negative 30% 120 reviews across 4 regions
Pricing & Value Subscription & Cancellation Accuracy & Effectiveness App Performance & Glitches Customer Support & Shipping Device Compatibility & Integration
5★548
4★67
3★43
2★52
1★231
recent reviews across 4 regions, vs the 4.8★ lifetime average

Natural Cycles is a fertility tracking app that helps users understand their cycles for natural family planning or contraception, often integrating with wearable devices like the Oura Ring. While many users praise its accuracy and educational value, recent updates have introduced syncing issues and the app's rising subscription cost and difficult cancellation process are major points of contention.

What users like

  • Highly accurate for cycle and ovulation prediction, aiding both pregnancy prevention and conceptionR2R7R11R15
  • Empowers users with a deeper understanding of their body and cycleR2R5R9R11
  • Effective as a non-hormonal birth control method when used perfectlyR4R18R20R23
  • Seamless integration and ease of use with Oura Ring for temperature trackingR21R29R32R34

What users complain about

  • Subscription price has significantly increased, making it too expensive for many usersR6R49R109R141
  • Frequent app glitches and syncing issues, especially with Oura Ring and other wearablesR31R4R35R56
  • Difficult and misleading subscription cancellation process, leading to unwanted auto-renewals and no refundsR1R13R27R30
  • Effectiveness as birth control is questioned by some users who experienced unintended pregnancies despite perfect useR141R24R422
  • Inaccurate ovulation predictions for some users, particularly those with irregular cycles or when relying solely on the app's algorithmR8R38R51R73
  • Poor or non-existent customer support, especially regarding shipping issues and refundsR1R13R19R50
  • Wearable devices (bands, thermometers) provided with subscriptions are often problematic or arrive lateR58R297R542R629
  • Lack of transparency about device compatibility and subscription requirements before purchaseR3R12R42R45

Latest update · v5.8.1

What the developer says changed (the verdict above weighs this against what reviewers report):

A few polishes for a better experience.

Recurring themes

Pricing & Value negative
Many users complain about significant price increases, with annual subscriptions now costing around $150-$160, up from previous rates. They feel the app no longer offers sufficient value for the high cost, especially when compared to free alternatives or the Oura Ring's own tracking.R6R22R27R40
App Performance & Glitches negative
Users frequently report glitches, particularly with syncing data from Oura Rings, requiring multiple attempts or app restarts. Some experience blank screens or issues with specific features like the ovulation test reader. The latest update's vague 'polishes' do not seem to have addressed these issues.R4R31R35R56
Subscription & Cancellation negative
A major pain point is the difficult and misleading subscription cancellation process. Users report being charged for annual renewals despite attempts to cancel, often due to unclear instructions, lack of renewal reminders, or issues with Apple ID sign-ins. Refunds are frequently denied.R1R3R12R13
Accuracy & Effectiveness mixed
Many users find the app highly accurate for predicting ovulation and periods, leading to successful family planning or contraception. However, a significant number report inaccuracies, especially with irregular cycles, and some experienced unintended pregnancies despite perfect use.R2R4R5R7
Customer Support & Shipping negative
Users report unresponsive or unhelpful customer service, particularly concerning refund requests and issues with shipping of bundled thermometers or bands. Many experience significant delays or non-delivery of devices, rendering the app unusable for initial subscription periods.R1R13R19R50
Device Compatibility & Integration mixed
While Oura Ring integration is generally praised for convenience, some users face issues with Garmin device compatibility despite marketing claims. Apple Watch users also report compatibility problems for temperature readings. The app also doesn't work well for night shift workers as it doesn't record temperatures during the day.R3R12R21R28

Who it's for

This app is for individuals seeking a non-hormonal method of birth control or those trying to conceive, who are willing to diligently track their basal body temperature (BBT) daily . It is particularly well-suited for users who already own or plan to purchase an Oura Ring for automated temperature tracking R21R29R34. It is not for users with irregular sleep schedules like night shift workers, those who cannot commit to daily temperature logging, or individuals seeking a free cycle tracking solution R76.

Evidence note: The recent reviews skew negative, which is common for recent samples. While many positive reviews praise the app's accuracy and empowering nature, the negative feedback on pricing, glitches, and customer service is very strong and consistent across multiple users and regions, indicating significant current issues. The developer's notes are too vague to assess their impact.

Frequently asked

How much does Natural Cycles cost?
Natural Cycles is a subscription-based app with no free option, costing around $150-$160 per year R22.
Is Natural Cycles accurate for preventing pregnancy?
Many users report Natural Cycles is highly accurate and effective for preventing pregnancy when used perfectly R4R20R23, but some users experienced unintended pregnancies despite perfect use R24R141R422.
Does Natural Cycles work with Oura Ring?
Yes, Natural Cycles works well with the Oura Ring for automatic temperature tracking, which many users find convenient and accurate R21R29R32R34. However, some users report frequent syncing issues and glitches between the two apps R4R31R35R56.
Is it hard to cancel a Natural Cycles subscription?
Many users report that canceling a Natural Cycles subscription is difficult and misleading, often leading to unwanted annual auto-renewals and denied refund requests R1R13R27.
Does Natural Cycles work for breastfeeding women?
According to one review, Natural Cycles may not work effectively for breastfeeding women, as it might classify all days as 'red' (fertile) until breastfeeding ceases, making it useless for tracking R76.

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. [R2] 5/5 · US Love it: I’ve been using Natural Cycles for two months now, and I absolutely love it! Before using it, I didn’t really understand my cycle or know how to recognize what my body was telling me. Now I feel like I’m finally getting to know my body. So far, I haven’t gotten pregnant 🤣, and the app has helped me better understand my fertile days, my temperature patterns, and my cycle overall. It’s mad
  2. [R7] 5/5 · US Skeptical at first: I’ve been watching this app for several years now and haven’t used it yet. After life changes I decided it was time. It not only predicted exactly when I would ovulate (I can feel my ovulation) but it also predicted the exact day my period would come. It had a different day than apple health had predicted and I’ve been using Apple tracking for many years. Natural cycles said T
  3. [R11] 5/5 · US Love it!!!!: This process of tracking my fertility via an app was scary to me at first because it is a lot of information to trust someone with, but not only has this been super effective, but I’ve learned so much about myself and my body along the way! I am very thankful for NC!
  4. [R15] 5/5 · US BEST OUT THERE: Hands out best period tracker I have owned. So many benefits and when I had a problem with setting up a device, I emailed support and in less than a DAY they contacted me back fixing my problem. If you’re looking for help tracking ovulation, periods, etc this is the app. Super accurate and budget friendly. Thank you NC :) <3
  5. [R5] 5/5 · US This app has been so helpful!! :): I have loved using this app for over a year now! It is so great for natural family planning!☺️ It has truly helped me get to learn more about my cycle and how my body works!
  6. [R9] 5/5 · US Empowering: Truly a great design and product. Very empowering.
  7. [R4] 4/5 · US Glitchy app: I have been using Natural Cycles as birth control for almost 2 years and while I have had a positive experience, my only complaint is how glitchy the app is sometimes. I have to open my Oura ring app to load my data for the day over and over and for some reason the Natural Cycles app struggles to communicate with my oura app. It’s very frustrating. Today I have tried to get the Oura a
  8. [R18] 5/5 · US Love this app: Just had baby #4 8 months ago, and I used this app before to get pregnant it worked and this time want it to not get pregnant I have also paired it with the Oura ring as well, I’ve been on a mini birth control pill and breastfeeding for 8 months and it has wrecked my sex drive and my moods / personality. I wanted my body back and so did my husband and since I was weaning baby from b
  9. [R20] 5/5 · US Oh the power of knowledge!: This app has been a godsend. I know my body better than ever before and am grateful to be off hormonal birth control and still feel safe.
  10. [R23] 5/5 · US The Best Cycle Tracking Out There!: As someone who has had an irregular cycle off and on her whole life, NC has helped empower me and gives me clear data as to the “why’s”. For the first time in my life, if my cycle does something unpredictable, I can look back at my temperatures and data and figure out possible causes AND solutions. We use it for family planning as well, and we’re two years stron
  11. [R21] 5/5 · US LOVE this app!: I have been using this app for almost 2 years. I started with their thermometer, but now track my data through the Oura Ring. The thermometer method took a bit of time to remember to use it right when I wake up. The ring is so much easier since I don’t have to do anything besides wear the ring. It does take some time to gather data, so unprotected sex days are very limited at first
  12. [R29] 5/5 · US I LOVE NC!: Natural Cycles paired with my Oura ring, has been so helpful in better understanding my individual cycle. I am better equipped to make fertility decisions, and fully comprehend my body’s responses and feelings. There is so much to the female cycle, and apps like this are helping women educate themselves because we all know we aren’t being educated on it unless we seek it out ourselves.
  13. [R32] 5/5 · US Super accurate w Oura ring: Once my hormones leveled out getting off of BC I got pregnant in like 2 months because the tracking was so accurate. I use it to prevent pregnancy now and I have been going strong for a year!
  14. [R34] 5/5 · US Best period tracking app: Works wonderful with the Oura ring. Stopped taking the pill to take a natural route and it has been working great for tracking all my periods, ovulation and symptoms.
  15. [R6] 2/5 · US Bring back cycle day on calendar: Please update to be able to clearly see cycle day when clicking on future dates on the calendar like we used to see. The 2 stars is because recent updates to the app have made it LESS user friendly. More buttons to do the same thing we used to do with fewer buttons. Also the yearly subscription price is astronomical- I have been using this app for almost 5 years
  16. [R49] 3/5 · US Too expensive now: I’ve been using this app for YEARS and fell in love with it. Now it’s wayy too expensive and I refuse to go from paying the $84/year to a WHOPPING $139 I believe?! So so sad to leave this app behind but something like this should be affordable or at least have affordable options. Was nice while it lasted!
  17. [R109] 3/5 · US Is good but too pricy: The app offers good stuff but other apps do as well, unfortunately is the only e one that works with Oura, but iswayyyy too expensive for what’s offered
  18. [R141] 3/5 · US Expensive… Doesn’t Really Work: You’ll come to realize Natural Cycles is expensive - around $15 a month plus the price of the Oura ring and its membership. Meanwhile, unfortunately despite all of the helpful data it collects - when it says it prevents 98% of pregnancies when used perfectly, that 2% is more real than it seems. I used perfectly, measured every night and had no s*x on red days. My
  19. [R31] 3/5 · US Was Perfect: This app was great until the most recent update. Now it takes forever to sync with my Oura Ring. I have to reload it several times before it actually does anything. I never had this problem until they updated the app.
  20. [R35] 1/5 · US Never Syncs with Oura Ring App: This app sucks if you’re buying it to sync with your Oura ring app. You log into your NC account and it has you open your Oura ring app to sync, tries to load, and then does absolutely nothing. I’m lucky if I can get it to sync after multiple days of trying which defeats the purpose of tracking things every day for your health. Would NOT recommend wasting your money
  21. [R56] 2/5 · US Connecting: I’ve been using the app with my oura ring for 6months now. It won’t connect and give me temp readings unless I open oura app first. This is slightly annoying but no big deal. My big problem with it and why I’m writing the review is, it says I need to update permissions but when I do that an error message shows not allowing it to sync the information from my oura. So it’s not reading th
  22. [R1] 1/5 · US Misleading subscription cancellation: I tried canceling my subscription several months ago through apple subscriptions, but was just charged an annual fee anyway. So after digging some more, I found out you have to cancel through their app. Getting a hold of anyone in customer service is impossible. They just scammed me out of $159.99. So on top of being perimenopausal and my chances of conceiving
  23. [R13] 1/5 · US Misleading Subscription Renewal Date & Refund Refusal: I had a very disappointing experience with this company’s subscription renewal process. I received an email stating that my membership would renew on May 21, so I canceled my subscription on May 21, believing I was doing so at the renewal date. However, I later discovered that my payment had actually been processed on May 20, one day earlier
  24. [R27] 1/5 · US So unnecessary: Worst app ever. I don’t see the need to have it. It doesn’t help at all. I would not have it even for free ! But 160$ ?? I don’t know what happened but the 30 day trial didn’t work and then they charged me for the annual subscription. And you can’t cancel!!! So hard to unsubscribe and manage subscription , just a nightmare.
  25. [R30] 1/5 · US Trash: Does nothing but tells me about my temperature then charge me $160 for the year and can’t get refunded.
  26. [R24] 1/5 · US NOT EFFECTIVE: I used Natural Cycles as birth control as I wanted to get off my hormonal birth control. I got pregnant within two months of perfect use. And I mean PERFECT use. Please consider alternative birth control methods.
  27. [R422] 3/5 · GB Well…: I got pregnant despite all efforts 😁👍 baby boy coming next month lol
  28. [R8] 1/5 · US Awful waste of money: I’ve been logging religiously for 7 months and it still can’t even predict my period. The apple health app predicts it every time. This app is off by an entire week some times. Still have no idea when I’m ovulating.
  29. [R38] 1/5 · US Useless, completely missed my ovulation: This app doesn’t do anything useful. My other ovulation apps are significantly better equipped and less expensive. This missed my ovulation time entirely. It’s a scam.
  30. [R51] 2/5 · US Great for tracking. Not good for ovulation tracking.: Natural Cycles is great for logging temperatures, ovulation tests, symptoms, and cycle trends in one place. The interface is easy to use and the data tracking feels very detailed. My biggest issue is that the predicted ovulation date is often inaccurate for me. The app seems to rely heavily on past cycle patterns, so if your cycle varies at al
  31. [R73] 2/5 · US Mixed feelings for sure: I was a fan but I do feel like it was overhyped for sure. I was trying to conceive and I was following the recommendations and it keep clocking my ovulation way before I got a positive LH test. I quit natural cycles and switched to the Clear blue app and boom got pregnant that month .
  32. [R19] 1/5 · US Scam: Don’t bother jumping through the hoops of trying to get this covered through insurance, you will get denied and NC Support will not help make sense of this for you. This is a total money grab
  33. [R50] 1/5 · US misleading reimbursement claims: The NC marketing claims show that this is something that is very easy to get reimbursed, however, I am on my third appeal and having no success getting NC approved after following all their instructions. If they were upfront about how difficult the reimbursement process with insurance can be, I would not have paid $139 for the subscription.
  34. [R58] 2/5 · US Having problems with the band: I love the app so much! It gives great information and ideas about food and exercise. I’ve been having so much trouble with the band. I chose the band because I liked that I only had to wear it at night. I got the first band and wore it for about a week and half and love it. One morning I woke up and went to sync it to the app, but it wouldn’t connect. I went to plug
  35. [R297] 3/5 · GB Band is awful. App is good: The app is fine but you should not sell bands if they are that bad. Wear it all night for it to say nothing detected and I don’t think it’s very accurate. If your product has to be put on perfectly to work at night you shouldn’t be selling it yet. It’s not ready.
  36. [R542] 3/5 · CA NC review: The thermometer is a total waste of time for sure but having a calander to track symptoms and days has been eye opening!
  37. [R629] 3/5 · CA Good app, thermometer provided could be better: So far I like the app. Although the thermometer provided could be better as the screen on the thermometer doesn’t light up so I have to make sure I put a light on it to ensure I am reading it accurately or else I can’t see it. I also use the memory option every morning as I like to press snooze. But when you turn it on it shows the memory for maybe 2
  38. [R3] 1/5 · US Lies: I just wrote an entire review about how garbage this company is and how misleading everything is but Apple decided to delete the whole thing so I’ll try to make it shorter this time. They suck. At first their wearable band was free with the subscription then now that I’ve already paid for the subscription it’s $100and apparently the Garmin that I purchased for this purpose is not compatible
  39. [R12] 1/5 · US Scammy: I bought a subscription hoping to use it after getting off my current birth control. What the app didn’t tell before it prompted me to buy a subscription (I couldn’t go any further into the app without one) is that 1. I cannot use it while still having an IUD (I was trying to get ahead of tracking the cycle so I knew where I was at when it was removed). And 2. My Apple Watch apparently isn
  40. [R42] 1/5 · US Doesn’t work with iWatch 3: Doesn’t work with iWatch 3. Doesn’t tell you that til after you’ve paid an enormous subscription price. Will not give a refund. Thank goodness I didn’t pay a yearly subscription! Beware this money trap!!
  41. [R45] 1/5 · US wasted my time signing up: was hoping the app would be free, spent like 10 mins signing up just to see they charge you and there’s no free option. just to track your cycle is insane… i hope in the future they become transparent at the beginning about it costing money so others don’t end up wasting their time too… also unfortunate seeing the amount of reviews saying they make it difficult to get of
  42. [R22] 1/5 · US Super expensive: There is no free version. Only a $150 a year version. No thanks.
  43. [R40] 3/5 · US Not worth it if you have an oura ring: I’ve had my oura ring for almost a year now and have never had any complaints about the cycle tracking. It gets to be really accurate when you’ve had your oura ring for a while. I figured I’d try the Natural Cycles app because it seemed like it was going to give me better cycle insights than my oura ring. I got the app and if anything it seems to be less accu
  44. [R28] 2/5 · US Not taking data: Last few nights my NC app is saying my watch didn’t record enough data, though my watch is fit snug, sleep schedule set, and been sleeping 7-8 hours. The functionality is inconsistent even with consistent variables.
  45. [R76] 1/5 · US Does not work for breastfeeding women: I went through all the questions and put that I was breastfeeding. I paid the subscription for just 1 month luckily because it doesn’t tell you until after that all days are red until I’m done breastfeeding.

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