
At a glance
- Latest version
- v3.0 (30000)
- Updated
- Nov 29, 2025 (10 months ago)
- APK size
- 6.9 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- Any (no native code)
- Category
- Education (app)
- Listed since
- Mar 16, 2021 (at least)
- Permissions
- 2
- Developer contact
- [email protected]
About this APK
Bac II Calculator is an app by CKT11 in the Education category, listed since at least March 2021. It has no native code, so it runs on any Android processor.
It asks for 2 permissions, none of them sensitive. It asks for the same permissions as version 2.1.
What's new in v3.0
Description
From the listing uploaded by “appupdater”.
Version history
2 versions are listed, going back to v2.1.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Nov 29, 2025.
- Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
- Same certificate as the other version checked
Store checks and file details
- Developer signature verified Nov 29, 2025
- Validated against Google Play Nov 29, 2025
- Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
- Signing certificate (SHA-1)3C:6F:57:69:E1:CC:81:82:4A:8B:27:02:9C:DA:CD:15:A1:DE:F7:C4
- File MD5d3c647b8bec22368dc5b8f54c030e596
- 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 (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (2)
Bac II Calculator requests 2 permissions, none of them sensitive.
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) com.ckt11.CKTBacIICalculator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Required hardware & features
- Basic touch input android.hardware.faketouch
Bac II Calculator APK: questions and answers
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 Bac II 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 other version checked. After downloading, check that the file's MD5 is d3c647b8bec22368dc5b8f54c030e596.