# MyDays X Pro — user reviews > 77 indexed App Store user reviews of MyDays X Pro by Christian Mueller, rated 3.80/5 from 41 ratings. - Source: https://appshunter.io/ios/app/mydays-x-pro/id490983126/reviews - App overview in markdown: https://appshunter.io/ios/app/mydays-x-pro/id490983126.md - Rating breakdown: 5★ 20 · 4★ 6 · 3★ 7 · 2★ 3 · 1★ 5 ## What do users think of MyDays X Pro? Overall sentiment: mixed **Pros** - 👍 Simple and easy to use - 🎯 Accurate predictions - ❤️ Long-term user loyalty - ✅ Reliable for tracking - 💰 Worth the upgrade (for some) - ⏱️ Quick setup - 💡 Useful for planning - 📈 Helps understand body **Cons** - 🐛 Data loss issues - 💸 Deceptive payment model changes - 👎 Backup feature unreliable - 😠 Unwanted prompts (email, location) - 📉 Predictions can be inaccurate - 🚫 Features removed over time - ⚠️ Paid version issues - ❌ Inconsistent upgrade experience **Commonly reported bugs** - Data backup not working - App freezes after upgrade - Lost data after phone issues/upgrades - Notification badge incorrect - Cannot log periods in newer versions - Pro version shows ads - App crashes - Restore feature not working - New app version without past info - Invalid certificate error - Moon phases/predictions not working after update - Nova ring data not working - Music stops when opening app **Most requested features** - Sync data with Apple Health - Add moon phases option - Improve prediction algorithm accuracy - Add Touch ID/Face ID support - Indicate which account is active in multi-user mode - Allow disabling temperature graph when not in use - Modernize the interface ## Newest reviews (16 of 77) ### 3/5 — Glitchy *2026-07-31, version 3.249* I love this app, it is so easy to use. I have the pro version, and the most up to date iOS version, but whenever I want to go look at previous years it’s glitchy and not aligned to the center of the phone it shows up on a quarter of my screen. Then if I select a year, it goes to an all white screen and freezes where I have to shut the app down and restart. Is there something I’m missing? ### 4/5 — Great App *2026-01-11, version 3.249* I’ve been using this app for years and it’s been very accurate as to when I would be starting my period. I do wish there was an option to sync my data history with Apple Health. ### 3/5 — Loved since the beginning but something happened *2023-09-18, version 3.249* I’ve loved this app for as long as it’s been a thing. I hate the newer apps because they aren’t as simplified to me as this one. I don’t want an all girly and baby-like app. I’m not against either things, I just haven’t liked any other app layouts or anything. This app isn’t all about the frills but allows you to make changes. The problem is, within the last month or so I feel as if something has happened to ruin it and I’m just now seeing it. It could be further back since I haven’t played around with things lately but I’ve continued to log my periods and they aren’t there. I have my account set to auto-backup but it seems that it hasn’t done that. When I try to reload, it goes back nearly a year! This is unacceptable. Where’s my info?! As for ads, I don’t have them…just pay for it. It’s worth it. ### 3/5 — Incorrect Notification badge issue all of a sudden *2023-03-30, version 3.249* I have the most up to date app and iOS version. I’ve been using this app for at least ten years, no issues. Now suddenly, the notification badge on to app that is supposed to tell me what day in my cycle I’m in is showing +5 days of what the actual cycle day is (which is still accurate within the app on the calendar). Very frustrating, especially if you wanted to use this notification for quick reference to follow natural family planning method guidelines. So disappointed. I filled out a contact form to ask for assistance fixing this bug and got no response. ### 3/5 — Needs to go back to how it was *2022-07-03, version 3.249* I been using this app for about 4 years now and now it has taking the features off. ### 2/5 — Don’t pay just use the lite app *2022-05-10, version 3.249* I purchased this app because I loved the free version but lost all my info after a phone issue. So I paid for the pro version so I could do the backups. It’s been a few years and no backups. I’ve tried to find a contact or email to try and resolve the issue but I’ve only ended up at a useless blog. I lLOVE the format of this app but I just want to be able to back it up if something goes wrong so I don’t lose years of info. Serious info like miscarriages and missed periods. If someone can help me I will edit my review ### 4/5 — Simple and accurate *2022-04-26, version 3.249* Tried all the big name apps and keep coming back to this one. The others are so annoying and distracting. This one has just what I need, no more, no less. It’s extremely accurate with predicting my start date too after a few months’ worth of data entry. Hopefully this app will stay in the App Store! ### 3/5 — Moon phases and predictions *2022-04-13, version 3.249* Love the app been using it for years. Recently did an update and now I can’t get the moon phases or predictions to work. ### 2/5 — Unhappy with ‘Pro’ version *2022-01-23, version 3.245* I have been using my days for years and loved it. The only thing I disliked was the annoying ad that popped up when you opened. Especially when you were at the drs office, needing info and the dr is staring at you while you wait for the ad to go away. So I finally decided to go ad free. I didn’t realize it was a completely separate app. The back up won’t work so I just manually inputted a year of data. I put the exact same info in and it says I will start my period on a different day and ovulation with be two days different. Not impressed at all right now. As I type this, I am wondering why I picked two stars instead of one. Total waste of 3 bucks so far. ### 3/5 — Wth is Awesome.fish and why did it come up in my app *2021-07-12, version 3.245* I got a weird prompt when I opened the app (no ads version), and it said something about awesome.fish and searching for people online. What is this. Do I have a virus from the app now? Please assist, app developer. ### 4/5 — Please contact me *2020-11-18, version 3.206* I upgraded this app to exclude ads and i got a brand new app without single past info - this is ridiculous! That’s nit called an “upgrade” - you should have a pop-up saying “make sure you backup your data since this will delete absolutely everything”. Please revert me back to the old version asap! Thanks ### 3/5 — Doesn’t Predict my actual cycle *2020-03-01, version 3.206* I have been using this app for years and it does not track MY cycle. I have a 21 day cycle and no matter how much data is in, the app always shows me on a 26 day cycle. I like the app, because it’s simple and the others I’ve looked at are so complicated. I just wish it actually worked. I really just use it for informational purposes. ### 4/5 — Kann man empfehlen :-) *2019-10-05* Das Tool tut das, was es soll. Standort habe ich abgelehnt, das war kein Problem. Bei einem Problem sehr schnelle Hilfe durch den Programmierer. Vielen Dank! Ich würde die App weiter empfehlen. **Developer response:** Vielen Dank für Ihre Bewertung! Wir schätzen es sehr! ### 4/5 — Easiest to use *2019-08-27, version 3.187* I have tried so many different period tracking apps and this is by far the simplest, which is what I need. Two issues. One, I wish I would stop asking me to backup my data. I don’t want to backup and it’s always in the way. Second, I wish the data would share to the Heath App on my phone to then flow through to other health related apps. It’s why I keep trying other apps because they flow through, however the others are so complicated I keep coming back. ### 2/5 — Getting Sketchy *2019-02-02, version 3.162* Overall, I used to like this app A LOT. But, over the last year, it’s been getting sketchy. I paid for the pro version, mostly to eliminate ads. For several months now, when I open the app, it encourages me to give my email address. The request is accompanied my some lame one-liner explanation. Also, twice now, upon opening the app, it has asked me to turn on location services (GPS) so it can better track my period. WTH? Assuming I don’t cross the international date line, how on earth does knowing WHERE on earth I happen to be help these people track my period? The app is reliable for some things. If I’m feeling especially—amorous, let’s call it—I can open this app and confirm I’m leading up to or actually ovulating. If I just can’t leave the junk food and caffeine alone, this app confirms I’m PMSing. If I’m a raging b**** or whiny troll, this app confirms Mother Nature is a day or two away. I used to really like this app, but the fact that they keep asking for information they don’t need is irritating. If the developers want to convey messages to us, they should use in-app notifications. You do not need users’ email addresses for that. And the location services request? I am not Carmen San Diego. You don’t need to know where I am to make an informed guess as to when my cycle will start. ### 3/5 — The predictions need a little tweaking *2019-01-15, version 3.162* The predictions are sometimes inaccurate if you have a temp spike for some reason. I have been measuring my basal temperature and logging it. On Day 6 of my last cycle I had a low grade fever and so my temp spiked, and for the whole rest of my cycle it said “you’ve already ovulated” even though my basal temperature went back down to a steady temp. I’d say most women don’t ovulate on day 6, and so there should be more to the algorithm than just a spike in temperature. Basically it’s just a way for me to log it, but I still have to use my own common sense and can’t rely on the predictions. ## Most critical reviews (10 lowest-rated) ### 1/5 — Не работают данные о кольце нова ринг *2023-01-25* Нова ринг вести в приложении опция есть. Но вести его не получается. Поддержка не отвечает. **Developer response:** Пожалуйста, напишите нам по адресу service@mydays.club, чтобы мы могли вам помочь. ### 1/5 — Paid for pro? Too bad, now you have to subscribe *2022-08-27* I’ve been a loyal user of the app for years. I paid for pro version. Recently sleazy ads started popping up. I complained and was told this should happen in the pro version. Well now it appears everyone has to subscribe if you want get rid of ads. Those who paid for pro previously don’t seem to be grandfathered in. If your looking for a period app I’d recommend the old version. Now that’s not available I recommend looking elsewhere — this app doesn’t offer enough not make this kind of deceptive practice (making payment model change with no warning) acceptable. **Developer response:** please send an email to androchris@gmail.com to help you. the pro version has no ads, and will install as extra app on ur device. ### 1/5 — Cant Track My Period Anymore?! *2021-04-03, version 3.245* I had the free app for years & then opted for the Pro awhile ago. I’ve never had a problem until today when I tried to log the first day of my period, and the option is completely gone. I mean that’s kind of the entire point of this app, and I’m pretty disappointed that I can’t even utilize it. ### 1/5 — Not Working *2019-06-03, version 3.162* I literally just payed $2.99 for this app and it keeps crashing! I want my money back! ### 1/5 — Horrible decision to do the add free upgrade *2019-01-01, version 3.162* Been using this app for many years. Decided I would do the upgrade to no adds but was the worst decision I made!!!! It freezes and I can’t get into my information. Had to delete the app and download again which means I lost all my information I entered. Would been fine if it would have done the backup as I tried to do and wouldn’t work. Not worth the money. ### 1/5 — Not able to get my old data *2018-11-11, version 3.158* I have been using the free app for years and just bought the ad-free version. I can’t see any of my data in the paid app? Need customer assistance to fix. Still waiting to hear anything from the developer. There is no way to import the free MyDays app info into this paid version. Total waste of money. Beware. ### 1/5 — Won’t let me go into the app *2018-10-28, version 3.158* I’m trying to log in my menstrual cycle right now, and it’s telling me that something went wrong with my auto-backup and that the certificate for this serve is invalid. ### 1/5 — MyDays Backup feature *2018-06-13, version 3.126* I paid for this app and have been for a very long time. All of sudden I can’t save anything via the MyDays backup feature. Every time I try via the MyDays backup I get a blank white screen. No confirmation. Absolutely nothing. I try closing the app and reopening to try it again and nothing. Very frustrating. This app was great keeping track until this problem came up. Someone please fix this problem. ### 1/5 — Standort - nein. *2018-06-10* Warum braucht eine App dieser Art Zugriff auf meine Standort? Ich wechsele den Anbieter. Funktioniert ansonsten ganz gut, aber die ständige Standortabfrage ist das KO-Kriterium. **Developer response:** Sie können Standortberechtigungen verweigern. Wenn Sie dabei Hilfe benötigen, senden Sie uns bitte eine E-Mail an service@mydays.club. ### 1/5 — They sell your info now. Time for a new app. *2018-05-31, version 3.126* I PAID for this app and have been using it a long time. All of a sudden, I get a pop up telling me they sell info to advertisers and collect your id and location. Then why did I PAY for this app?!??! If I don’t accept, I can’t use it. I’m done. Unfortunate. ## Most praised reviews (10 highest-rated) ### 5/5 — Great! But no moon phases option? *2025-05-15, version 3.249* I’ve used this app for so many years and I love it. The only thing I think is missing are the moon phases that I would like to keep track of beside my period. ### 5/5 — After 10 years... *2020-05-15, version 3.206* of using the FREE version, I purchased this app. I was inspired by another user who purchased PRO simply to support the developers. Thank you 🧡🌸 I would be lost without this app. ### 5/5 — 10 years using this app. *2020-03-01, version 3.206* I just wanted to drop a line and say thanks to the creator of this app. I started tracking my period in my early 20s and I wished I had done it sooner. It's game changing. It allows you to recognize pre/post period symptoms, truly get to know your body, plan ahead of big days and big decisions, as well as enjoying sex responsibly. I wouldn't have been able to do this without this app. Thank you! ### 5/5 — I think it’s a great app *2019-12-22* Even after all these years I’m still using it **Developer response:** Thank you for your great review! Happy Holidays! ### 5/5 — No Frills, Does what it says.. Best one!! *2019-09-09, version 3.187* There is no frills, easy to use and set up. I only use it for period tracking so I don’t really use the other features but it definitely does what it says and I’ve never had an issue! I’ve been using this app for atleast 7 years if not more. This is one of the few apps that I made sure to switch over when I switched from Android to IPhone. BACK IT UP! It was one of the mistakes I did (twice) first when getting the first iPhone I had and 2nd time was when I switched iPhone. I have since learned! It’s super easy to back up, (I have about 5 1/2 years worth of data) and when switching from the free to paid.. BACK IT UP first!!! I just did the switch today it took maybe 2 minutes really. ### 5/5 — Extremely Useful *2019-04-21, version 3.162* I use this for myself and my daughter. Switching back and forth is easy, just wish it would indicate which account I’m looking at on the main screen. Otherwise it’s been accurate, almost every month, for my daughter who’s cycle is steady. ### 5/5 — Love! *2018-12-08, version 3.162* I love this app and I’ve had it for years. I can’t stand any other app. It’s simple, easy to use, easy to backup, and perfect for my needs. It doesn’t need all the fancy pink designs or fluffy crap. There are no stupid stickers or complicated things in it. It’s simple and straightforward. The best period tracker app in here. ### 5/5 — User for years that finally upgraded with no ads *2017-09-05, version 3.038* I've been using this app since 2012. Never had any issues. My period date has been off by two or three days no big issue, the body changes when it wants. I love it I just had to get rid off the ads. Great app to use when checking in with the doctor or if you feel crabby. Check the app!!! ### 5/5 — Shark week *2017-08-23, version 3.038* App is pretty spot on. Can be off a few days- but that may be me and what's happening in my life. Got tired of the ads so I decided to give Christian a bonus. Nice when I go to my OBGYN - and they ask that question we all never can remember..."when was your last period?" I can now answer that question and say- "I have an app for that!" 5 stars in my book! ### 5/5 — Worth it *2017-08-17, version 3.038* I've been using the free version for a few years now, and have finally upgraded to the Pro version. It's very easy to use, and easy to note any symptoms and keep track of everything. It's also very handy if your doctor asks for any info relating to your cycle. The fact that you can back up data is also very reassuring. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-12.*