Fertility Friend Ovulation App v15.21
APK · 27.6 MB · version code 2026091501 · Android 8.0+ · uploaded Sep 22, 2026
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v15.22, uploaded Oct 8, 2026 — about 16 days after this one.
- Size: this file is 27.6 MB; the latest is 25.2 MB (2.4 MB smaller).
- Both versions request the same permissions.
File information
- Version
- v15.21 (2026091501)
- Uploaded
- Sep 22, 2026
- Size
- 27.6 MB
- Requires
- Android 8.0+ (API 26)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Screen
- Small screens and larger
- MD5
- 2175d772ffd75bd9f974ea7ad8946f94
- Signing certificate (SHA-1)
- 3E:E7:E7:F7:82:03:3E:E1:A9:B3:29:8B:78:72:C0:DB:D5:42:19:5B
- Signed by
- CN=FertilityFriend.com, OU=Unknown, O=Tamtris Web Services Inc., L=Ottawa, ST=Ontario, C=CA
- File name
- com-tamtris-fertilityfriend-2026091501-76739567-2175d772ffd75bd9f974ea7ad8946f94.apk
- Package
- com.tamtris.fertilityfriend
- Downloads (all versions)
- 1M+
- Age rating
- PEGI 3 · Everyone
What's new in v15.21
This is a technical update. Bug fixes and minor UI improvements.
Permissions (13)
This version requests 13 permissions, 1 of them sensitive.
- Camera Sensitive android.permission.CAMERA
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.tamtris.fertilityfriend.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- 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
- Use biometric hardware android.permission.USE_BIOMETRIC
- Use fingerprint hardware android.permission.USE_FINGERPRINT
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Sep 22, 2026.
- Certificate issued to “Tamtris Web Services Inc.” This is the certificate of the Google Play version.
- Same certificate as the 5 other versions checked
Store checks
- Developer signature not checked yet Sep 22, 2026
- Validated against Google Play Sep 22, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (5 other versions compared). AAPKs doesn't scan files itself.
How to install Fertility Friend Ovulation App on Android 8.0+
You'll need about 55.1 MB of free space.
- Download the APK — tap Download APK above (27.6 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-tamtris-fertilityfriend-2026091501-76739567-2175d772ffd75bd9f974ea7ad8946f94.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 2175d772ffd75bd9f974ea7ad8946f94. 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?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. 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 Fertility Friend Ovulation App — 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 8.0+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.