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Last updated on: 2026-10-03
Android Apps > Health & Fitness > Once -A special period tracker
Once -A special period tracker icon

Once -A special period tracker

5.5.1
(주)넵튠
4.12
22,324 reviews
1,000,000+
Downloads
Free

An app for girls surfing the crimson wave, once a month

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4.12 · 22,324 reviews · 1,000,000+ downloads
Download from Google Play

About Once -A special period tracker

Once -A special period tracker is a health & fitness app developed by (주)넵튠.

How many times has Once -A special period tracker been downloaded?

Once -A special period tracker has been downloaded 2.9 million times. In the last 30 days, the app was downloaded 0 times.

What is the rating of Once -A special period tracker?

Once -A special period tracker is rated 4.12 out of 5 stars, based on 22 thousand ratings.

Is Once -A special period tracker free?

Once -A special period tracker is free to download. The APK download size is 31.86 MB. The latest version available is 5.5.1. The last update was on August 2, 2026.

What are the requirements for Once -A special period tracker?

Once -A special period tracker requires Android 4.4+ or higher. The app has a content rating of High Maturity. The app has been available on Google Play since June 2010.

Description
For the all women who need menstruation recording calendar
Show more

More data about Once -A special period tracker

Price Free to download
Total downloads 2.9 million
Recent downloads 0
Rating 4.12 based on 22 thousand ratings
Ranking Not ranked
Version 5.5.1
APK size 31.9 MB
Number of libraries 64
Designed for Android 4.4+
Maturity High Maturity
Ads Contains ads

App Performance Report

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Google Play Rating history and histogram

Rating history
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15K
2K
1.6K
1.6K
2.5K

Downloads over time

Downloads over time
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Once -A special period tracker has been downloaded 2.9 million times. Over the past 30 days, it has been downloaded 0 times.

Changelog of Once -A special period tracker

Show changelog

Developer information for (주)넵튠

(주)넵튠

once@malang.kr

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Comments on Once -A special period tracker for Android

★★★★☆ Em · May 12, 2026
Please make a list view e.g. January 01/01/2026. Symptom - backache 01/01/2026. Symptom - food cravings 02/01/2026. Symptom - cramps 02/01/2026. Period starts - flow heavy 04/01/2026. Symptom - severe cramps 06/01/2026. Symptom - backache 06/01/2026. Period finishes February 03/02/2026. Etc... just a list view allows you to see patterns of symptoms more easily, and you can screenshot the list all in one go rather than having to click on each individual day one by one.
★★★★★ Nikki Evelyn Overton · Jul 9, 2024
Love it!! I've been using this app for years now. It's normally always right on track with my period predictions. And it's really simple to use. I would recommend it to anyone.
★★★★★ Amy Soaki · May 3, 2024
I do love using this app to track my period. I think it would be a helpful option to add if you're pregnant, and to be able to add when you ovulated (based on blood test or LH) to make it more accurate. Thank you.
★★☆☆☆ Eshana Strothers · Nov 8, 2020
It was a decent app until they try to force me to agree to their terms and services (WHICH ISN'T IS IN ENGLISH BTW.) And I can't use the app until I agree to the terms and services, but I can't read the terms and services cuz it's not in English. So I guess I have to delete this app now.
★★☆☆☆ Jennifer Walker · Mar 27, 2021
Used this app for years but the pop-up ads have gotten out of control. I don't even know how to close them because they're in Chinese. Super annoying and not worth it anymore. Bye, Once.
★★☆☆☆ Aria dc · Nov 8, 2022
I have registered but I am unable to login. Please help mee. I click on the do u have registered account, then it says your account is registered. Then how am I able to log in?

Google Play Rankings for Once -A special period tracker

This app is not ranked

Technologies used by Once -A special period tracker

21 permissions · 64 libraries
Subscribe to see full permission and library details
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