Period Tracker Period Calendar v999.0
APK · 5.1 MB · version code 999 · Android 7.0+ · uploaded Nov 18, 2025
- v1.77.365.GP is signed like the Google Play version Get v1.77.365.GP
The source store flagged this file with a security warning (Warning). We recommend not installing it. See other versions.
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v1.77.365.GP, uploaded Sep 4, 2026 — about 10 months after this one.
- Size: this file is 5.1 MB; the latest is 58.9 MB (53.8 MB larger).
- Android: this version needs Android 7.0+; the latest needs Android 6.0+.
- The latest version asks for 21 more permissions: Access adservices ad id, Access adservices attribution, Access adservices topics, View network connections, Run foreground services, Foreground service media playback, Show notifications, Run at startup….
- The latest version no longer asks for: Approximate location, Precise location, Read shared storage.
File information
- Version
- v999.0 (999)
- Uploaded
- Nov 18, 2025
- Size
- 5.1 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 54a239c0f760a440a887d8532ad21830
- Signing certificate (SHA-1)
- EA:FA:FD:1E:CB:EB:E1:15:8C:91:6B:BE:4D:09:F4:CA:0C:87:23:30
- Signed by
- ST=h8d5dsDu1Mcf, L=h8d5dsDu1Mcf, O=h8d5dsDu1Mcf, OU=h8d5dsDu1Mcf, CN=h8d5dsDu1Mcf
- File name
- com-popularapp-periodcalendar-999-72386373-54a239c0f760a440a887d8532ad21830.apk
- Package
- com.popularapp.periodcalendar
- Downloads (all versions)
- 100M+
- Age rating
- PEGI 3 · Everyone
What's new in v999.0
• Bug fixed
Permissions (5)
This version requests 5 permissions, 3 of them sensitive.
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) com.popularapp.periodcalendar.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Security & authenticity
Security rating: Warning
Signing certificate
- Certificate issued to “h8d5dsDu1Mcf” Not the developer's name (“Sports Tracking Technologies Ltd.”). Names in certificates can't be verified, so this alone proves nothing.
- The same certificate signs apps from 3 different developers Developers normally sign only their own apps. This can mean the files were re-signed by someone else — or that one company builds or publishes apps under several names.
- Signed differently from the Google Play version v1.77.365.GP, v1.77.364.GP, v1.77.361.GP and 2 more, which match Google Play, use another certificate. Android normally won't update an installed Play Store copy with this file. v1.77.365.GP · v1.77.364.GP · v1.77.361.GP · v1.77.348.GP
Store checks
- Developer signature check failed Nov 18, 2025
- Uploaded by “bujj546t” 8 followers · uploading since 2025
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (6 other versions compared). AAPKs doesn't scan files itself.
How to install Period Tracker Period Calendar on Android 7.0+
You'll need about 10.3 MB of free space.
- Download the APK — tap Download APK above (5.1 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-popularapp-periodcalendar-999-72386373-54a239c0f760a440a887d8532ad21830.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 54a239c0f760a440a887d8532ad21830. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. The source store flagged this file with a security warning; we recommend not installing it. If Play Protect blocks it, tap Cancel. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Period Tracker Period Calendar — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 7.0+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source; for this file we recommend not to.