MyDays X Women Cycle Calendar

Ovulation calendar & tracker for your menstrual cycle and period days

Christian Albert Mueller · com.chris.android.mydaysfree

1.0 out of 5 (1 rating) 1M+ downloads v3.312 36.9 MB Android 5.0+ PEGI 3 · Everyone

Download APK 36.9 MB All versions

Signature matches the Google Play version Details

Watch the MyDays X Women Cycle Calendar trailer on YouTube

MyDays X Women Cycle Calendar screenshot 1

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MyDays X Women Cycle Calendar screenshot 8

At a glance

Latest version: v3.312 (3312)
Updated: Apr 26, 2026 (6 months ago)
APK size: 36.9 MB
Requires: Android 5.0+ (API 21)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Graphics: OpenGL ES 2.0+
Category: Lifestyle (app)
Listed since: Apr 17, 2021 (at least)
Permissions: 21 (4 sensitive)
Website: blog.mydaysx.club
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

MyDays X Women Cycle Calendar is an app by Christian Albert Mueller in the Lifestyle category, listed since at least April 2021. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 3.283, the minimum Android version rose from 4.4 to 5.0. It asks for 21 permissions, 4 of them sensitive, including precise location, approximate location and read shared storage. It asks for the same permissions as version 3.303. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v3.312

Additional Crash fix for some users Android 14 update and stability/bug fixes. We heard you, lifetime ad free option added, keep an eye out for discounts !!! Thank you for supporting MDX. MyDaysX GoPro Subscriptions live now, go ad free today and get access to exclusive new features coming soon. Update calendar support to 2025

Description

From the listing uploaded by “appupdater”.

The best Ovulation Calendar and Period Tracker is here: My Days X. Congratulations! Out of 100,000+ apps, MyDays X has been selected by leading doctors as a top health ovulation calendar app. Based on its medical accuracy, its utility in supporting health or healthy living goals, and usability, MyDays X has received the award from HealthTap AppRx Top Health and Medical Apps reports. *** MyDays X predicts your fertile days and your next periods *** ✔ ""Intelligent Notifications"" based on your Location and Time ✔ Great Community Chat to share your Experience with other Users ✔ Pregnancy Mode ✔ Track more than 20 Symptoms and remember your Breast Self examination ✔ Optional manual entry of your Ovulation days and next period prediction ✔ Track when you had sex (how often, protected/unprotected) ✔ Keep an eye on your blood flow and mood. ✔ embedded eMail support for your cycle History to your doctor ✔ Backup/Restore via MyDays Cloud Backup, Email or WiFi MyDays X - Period & Ovulation Calendar is the simplest way to track your female data. ✔ NuvaRing and any other birth Control based on Insert/Remove after x Days ✔ Partneremail, email your Partner how u felt in the last days and whats coming next ✔ Disable Daily Options, for example for kids or when you don't like to come pregnant Simpler, Better, More Features and the best Community ✔ Track your Cervix position, openness, firmness & feeling ✔ Track OPK Results (negative, fertile, peak/ovulation) ✔ Visualize Moon-phases The new MyDays Period Tracker ROCKS! More innovative features than ever! ✔ Password Lock for your Security ✔ Add the actual cycle day to the calendar days ✔ Disable the predictions for period or ovulation on the calendar ✔ Filter what you like to see in your History List (eg. only Data from 2014) ✔ Multi User (track yourself, your daughter or close friend)   ✔ Create your own Calendar Themes!   ✔ Add text notes - remember if you took your pill ✔ Overwrite the predicted ovulation with your manual set day ✔ Adjustable Luteal phase ✔ Option to see old predictions   ✔ Reset preferences and data should you lost overview ✔ Rename Symptoms Fields for your Needs ✔ Get an overview by Chart for your temperature (BMT) and weight measures ✔ Choose the start day of the week ✔ Cycle and Period Length can be calculated automatically ✔ Unit Measures in Kg/Lbs/Stone Celsius/Fahrenheit   ✔ More than 20 Languages ---------------------------------------- MyDays, the easy tracking & prediction calendar for your period, ovulation and fertility. --------  Remember:  MyDays does pinpoint the 'high fertile' days. However, you can become pregnant also on other days! Usage is your own responsibility. For more Help & Hint, see Preferences -> About -> Visit MyDays - Homepage -------- If facing issues with app not starting up or crashing, please try restart phone and clear your google play store cache/data from phone settings > app settings > google play store > clear data / cache. We have released multiple fixes for the app to resolve problems on android 10 and onwards so please update your app. Thank you * "MyDays X Free" includes advertising.

Version history

4 versions are listed, going back to v3.283. Since v3.301 it requires Android 5.0+.

v3.312 LATEST Apr 26, 2026 36.9 MB TRUSTED v3.303 Feb 6, 2025 33.6 MB TRUSTED v3.301 Oct 24, 2024 33.6 MB TRUSTED v3.283 May 21, 2024 36 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Apr 26, 2026.
Certificate issued to “christian-albert-mueller.com” This is the certificate of the Google Play version.
Same certificate as the 3 other versions checked

Store checks and file details

Developer signature verified Apr 26, 2026
Validated against Google Play Apr 26, 2026
Signed byCN=www.christian-albert-mueller.com, OU=Android Application Research & Development, O=christian-albert-mueller.com, L=Medias, ST=Sibiu, C=ro
Signing certificate (SHA-1)C7:A9:71:12:4F:3A:EE:8A:B4:AC:AF:1B:8E:1D:D6:71:2E:F1:14:C9
File MD50cf3b7dc504982515539d95f83fbe65f
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (21)

MyDays X Women Cycle Calendar requests 21 permissions, 4 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Apphub bind apphub service (custom) com.applovin.array.apphub.permission.BIND_APPHUB_SERVICE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) com.chris.android.mydaysfree.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
Show notifications android.permission.POST_NOTIFICATIONS
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

MyDays X Women Cycle Calendar APK: questions and answers

Is there a version of MyDays X Women Cycle Calendar for older Android phones?

The current version needs Android 5.0 or later. Version 3.283 is the newest listed build that installs on Android 4.4 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 3.283 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is MyDays X Women Cycle Calendar free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the MyDays X Women Cycle Calendar APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 3 other versions checked. After downloading, check that the file's MD5 is 0cf3b7dc504982515539d95f83fbe65f.