Aquarium Calculator
A set of common aquarium calculators.
November31 · com.november31.aquarium_calculator
- Signature matches the Google Play version Details
At a glance
- Latest version
- v5.1 (26)
- Updated
- Nov 24, 2025 (10 months ago)
- APK size
- 2.9 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- Any (no native code)
- Category
- Tools (app)
- Listed since
- Sep 27, 2016 (at least)
- Permissions
- 9
- Website
- november31.com
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Aquarium Calculator is an app by November31 in the Tools category, listed since at least September 2016. It has no native code, so it runs on any Android processor.
Since version 4.3, the APK grew from 1.4 MB to 2.9 MB and the minimum Android version rose from 4.0 to 5.0. It asks for 9 permissions, none of them sensitive. Compared with version 5.0, it adds 3 new permissions: “Access adservices ad id”, “Access adservices attribution” and “Access adservices topics”. The app can read the advertising ID that ad and analytics services use.
What's new in v5.1
Description
From the listing uploaded by “appupdater”.
Version history
3 versions are listed, going back to v4.3. Since v5.1 it requires Android 5.0+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Nov 24, 2025.
- Certificate issued to “Julio Rodriguez” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks and file details
- Developer signature verified Nov 24, 2025
- Validated against Google Play Nov 24, 2025
- Signed byCN=Julio Rodriguez
- Signing certificate (SHA-1)D7:F9:02:28:4E:BA:8B:EE:4A:2D:ED:B8:6F:F5:64:EC:2F:5F:66:BF
- File MD5b14c0f426f3f77891efafbe8f5170f5b
- 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 (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (9)
Aquarium Calculator requests 9 permissions, none of them sensitive.
- 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
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) com.november31.aquarium_calculator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run foreground services android.permission.FOREGROUND_SERVICE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
- Portrait screen android.hardware.screen.portrait
Aquarium Calculator APK: questions and answers
Is there a version of Aquarium Calculator for older Android phones?
The current version needs Android 5.0 or later. Version 5.0 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 5.0 · 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 the Aquarium Calculator 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 2 other versions checked. After downloading, check that the file's MD5 is b14c0f426f3f77891efafbe8f5170f5b.
