Menstrual/period calendar

Ads

Rate & Review

☆ ☆ ☆ ☆ ☆

Antivirus & safety scan results

Scan Date: Apr 30, 2026 Software Version: 1.96

Status: ✅ Trusted & Safe to install This app is signed by arnowelzel with trusted and verified digital signature and it will updated existing Periodical installations Certificate fingerprint: b64459b7f7391e3f53001c003d3613ae390b83fb Issuer: C:UK, CN:FDroid, L:ORG, O:fdroid.org, ST:ORG, OU:FDroid How we verify APK files security

Android antivirus Status

K7GW Clean ✅

DrWeb Clean ✅

VirIT Clean ✅

ClamAV Clean ✅

Google Clean ✅

Ikarus Clean ✅

Lionic Clean ✅

Sophos Clean ✅

Yandex Clean ✅

Alibaba Clean ✅

Tencent Clean ✅

Xcitium Clean ✅

Fortinet Clean ✅

Kingsoft Clean ✅

Symantec Clean ✅

AhnLab-V3 Clean ✅

Kaspersky Clean ✅

Microsoft Clean ✅

Trustlook Clean ✅

ESET-NOD32 Clean ✅

Avast-Mobile Clean ✅

NANO-Antivirus Clean ✅

BitDefenderFalx Clean ✅

Periodical Period Trackers app for Android description

This application calculates the days of fertility according to Knaus-Ogino. The data can be backed up on a memory card, if present.

WARNING: It is not recommended to use this calendar to avoid pregnancy! There are more accurate methods, like measuring the basal body temperature.

If you have any further questions or want to help translating the app, please contact upstream.

Ads

Specifications

Package Name	de.arnowelzel.android.periodical
Requirements	Android 5.0 (Lollipop API 21)
Author	arnowelzel
APK Size	2.8 MB
Categories	Health and Wellbeing, Period Trackers, Women Wellness
Source Code	https://github.com/arnowelzel/periodical