Once(A special period tracker) Reviews

Once A special Reviews

Published by on 2025-08-13

🏷️ About: To all the women who need a calendar to write down upcoming period To all the women who need a journal to manage irregular period cycle and cramp To all the women who want to know ovulation, fertile, birth control, and possibility of pregnancy all in one calendar To all the women who were bothered to mark their period on the calendar To all the women who secretly recorded symptoms on their planner Must-have! Period tracker, O.


       


Is Once A special Safe to Use?

We Investigate the app owner's website (Assets.adxcorp.kr), verify their legitimacy, and uncover hidden scams and complaints.


Overall Customer Experience 😎


🤬 Negative experience
62.8%

😎 Positive experience
37.2%

🫥 Neutral
0.0%

~ from Justuseapp.com NLP analysis of 84 combined software reviews.

Is Once A special Safe?
Once(A special period tracker) appears generally safe, but use with caution.
37.2/100

  Safety Analysis »»

Is Once A special Legit?
Once(A special period tracker) appears legitimate, though exercise caution.
37.2/100



Read 20 Customer Service Reviews 😠💢

3.7 out of 5
It won’t let me login back in

I can’t log back into my account and it’s not even sending a password reset email to my account

Ovulation

It is the 3rd time that I have uninstalled it and reinstalled OnceAspecialperiodtracker , because the normal thing is that when I mark my first day of period, the calendar automatically marks my approximate days of ovulation, and OnceAspecialperiodtracker has a defect in that it does not. When I mark my first day of menstruation, it marks the past days of ovulation, I need the future not the past to show me.

Big problem App will not stay open

I go to open OnceAspecialperiodtracker and it closes on its own. Never has there been any issues and I’ve used OnceAspecialperiodtracker for years very

No longer working

I’ve been using OnceAspecialperiodtracker for years and it just suddenly stopped working OnceAspecialperiodtracker keeps closing on me I can’t believe this all my data just gone

Been using for years now it’s crashing

The developers website doesn’t even work for me to report a problem.. I’m annoyed now 😮‍💨🙄 these other apps want to charge money for a stupid period tracker

Have to Watch an Ad Just to Record Data

It's incredibly annoying. I'm just going to remove the download and find another app or manually record my dates now because it's ridiculous that I have to watch a 30 second ad just to record my period.

Bug problems

I usually love OnceAspecialperiodtracker. But here lately I’ve been having issues with OnceAspecialperiodtracker . It closes automatically or doesn’t put when I end. It tries to override what I save. I can’t even open OnceAspecialperiodtracker now. It keeps closing on its own. I tried to write to OnceAspecialperiodtracker support but it’s not letting me. App itself closes real fast before I can take a screenshot of my period tracker dates. I even had issues looking for OnceAspecialperiodtracker on App Store. When usually I can find it fast with no issues. I would at least like to screenshot my menstrual cycles so I can get a different app. Very disappointed because OnceAspecialperiodtracker was my favorite one. Now I have to try out new ones.

App closes immediately

Have been having the same issue as a couple of other reviewers - app closes immediately when trying to open it 😔 Been using OnceAspecialperiodtracker since maybe 2019, have all of my data in it - please help!!

Ads ads ads

Great app but I’ve never understood why a period tracker has ads. Also many of these ads aren’t in English. I dont want to spend extra time when I’m just trying to track so searching for an alternative, only downside is i cant export this data

App keeps closing

I really love OnceAspecialperiodtracker, I use it to track my period, sex, and other notes, but recently, it doesn’t stay open when I try to add my period or something.

App Not Working

OnceAspecialperiodtracker used to work great but now closes automatically every time I try to open it. Wont stay open for even a fraction of a second.

App keep closing out

I’ve used this for years and loved it, but this week every time I try to open OnceAspecialperiodtracker it just closes out!!

The app stay open

I’ve been using OnceAspecialperiodtracker for few years now. But today when I tried to open it OnceAspecialperiodtracker just shuts down. I’ve tried several times but the same thing happens. Can you help?

Could be better

Half of OnceAspecialperiodtracker is a completely different language and you can’t change it. Also not always accurate. Has a calendar and it’s quite useful.

Best app

I’ve been using OnceAspecialperiodtracker for maybe 5 years now. All the other apps don’t track my period as good as this one does. This one seems to always be on time, the others always are off. The only thing I would change is that it would be cool to “add a partner” so that they knew when you’re on your period or about to start. I like that you can personalize your notifications for when you’re ovulating or about to start your period. “Shark week is coming” is always a hit.

Awesome

Been using OnceAspecialperiodtracker for about a year . I love it, and it's very accurate. Definitely recommend!

Cute app

Good tracker that’s flexible to use and allows you to input important details. Love the slideshows that change daily with tips coinciding to where you are with your period. Been using this one for a few years now. Super cute.

Great App

Have been using OnceAspecialperiodtracker for year to keep a record

Best one since forever

I’ve have used many other apps similar to track my cycle and nothing beats OnceAspecialperiodtracker. I’ve used it years before and always come back to it because it’s so simple! Other ones are way to complicated and this one is easy to use.

👏

OnceAspecialperiodtracker is great. It's pretty discreet I'd say. The only con to OnceAspecialperiodtracker is that it resets every time you login on a different device.

Update as of August 2020: I’ve been using OnceAspecialperiodtracker for at least 5 years, but I’m not sure exactly how long due to it resetting in past versions. Now it syncs if you happen to get a new phone or something. They added a lock to get into OnceAspecialperiodtracker , which I really like but you can disable it if you don’t want it. Still by far the best tracking app I’ve ever had. I don’t track my symptoms anymore unless they’re really bad, so I’m not using it to it’s full potential at times, but I absolutely love that I can look back on all my past symptoms/notes. I love that it can adjust how long your period should last based on previous periods.

If I could add anything, I would add the option to create your own symptoms, and maybe a feature that tells you when to expect cramps/other symptoms based on when you typically have them.



Is Once A special Safe? 🙏

Once(A special period tracker) appears generally safe, but use with caution. JustUseApp Safety Score for Once A special is 37.2/100.
This assessment is based on our NLP analysis of 84 user reviews. Combined with the app store average rating of 3.7/5.

Safety Analysis

55.6% of users say app is safe 👍
55.6%

25.9% of users say app is risky 🚨
25.9%

18.5% of users have some concerns ⚠️
18.5%


Is Once A special Legit? 💯

Once(A special period tracker) appears legitimate, though exercise caution. Our NLP models processed user feedback to estimate legitimacy. JustUseApp Legitimacy Score for Once A special is 37.2/100 .
This conclusion is based on analysis of 84 user reviews.

🔏 Privacy & Data Safety

Once A special collected the following data from you:

  • Data Used to Track You:
    • User Content
  • Data Linked to You:
    • Contact Info
    • User Content
  • Data Not Linked to You:
    • Health & Fitness
    • User Content
    • Identifiers
    • Usage Data
    • Sensitive Info
    • Diagnostics

Payments 💸

**Pricing data is based on average subscription prices reported by Justuseapp.com users..

Pricing Plans Amount (USD)
Ad-Free Ticket (30days) $0.99




How was your experience with Once(A special period tracker)? Post a Review




Features

In the period calendar, you can view your estimated period, fertile which has high percentage of pregnancy, and ovulation, all in one-step! In the calendar history list, you can view all your past period cycle in one-step.

The first period calendar ever! Check the important info (estimated period, ovulation, and percentage of pregnancy) more quickly and easily with our widget.

In the period calendar, you can view your estimated period, and ovulation, all in one-step.

Beauty tips which makes you attractive and charming depending on period cycle, ovulation, and fertile.

Based on egg’s duration of life, 24hrs, and sperms’ duration of life, 3~5 days, we indicate percentage of pregnancy “high” for one day before and after the ovulation, and “moderate” for fertile.