Gamma CalCulator
Gamma Calculator is an app for Industrial Radiography.
Devraj Jha · gammaray.devraj.gammaraycalc
- Signature matches the Google Play version Details
At a glance
- Latest version
- v1.03.5 (12)
- Updated
- Jul 1, 2026 (3 months ago)
- APK size
- 4.8 MB
- Requires
- Android 4.0.3+ (API 15)
- CPU support
- Any (no native code)
- Category
- Tools (app)
- Listed since
- Nov 4, 2020 (at least)
- Permissions
- 9 (3 sensitive)
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Gamma CalCulator is an app by Devraj Jha in the Tools category, listed since at least November 2020. It has no native code, so it runs on any Android processor.
It asks for 9 permissions, 3 of them sensitive: read phone status and identity, read shared storage and modify shared storage.
What's new in v1.03.5
Description
From the listing uploaded by “appupdater”.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 1, 2026.
- Certificate issued to “Devraj Jha” This is the certificate of the Google Play version.
Store checks and file details
- Developer signature verified Jul 1, 2026
- Validated against Google Play Jul 1, 2026
- Signed byCN=Devraj Jha, OU=Shhine Software, L=surat, ST=gujarat, C=in
- Signing certificate (SHA-1)AC:CE:1E:05:FC:C5:4D:17:77:6B:5B:64:B0:D7:AF:BA:BC:00:CF:76
- File MD5939d42b97c07c69409d1c1fb797ca12b
- 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. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (9)
Gamma CalCulator requests 9 permissions, 3 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
Gamma 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 Gamma 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. After downloading, check that the file's MD5 is 939d42b97c07c69409d1c1fb797ca12b.
