RT ToolBox

Exposure calculator with an integrated isotope bunker

Łukasz Sieczkowski · pl.mlsoft.rttoolbox

Not rated yet 5K+ downloads v1.0.19 6.9 MB Android 5.0+ PEGI 3 · Everyone

Download APK 6.9 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.0.19 (27)
Updated: Feb 2, 2026 (8 months ago)
APK size: 6.9 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Jan 19, 2021 (at least)
Permissions: 10
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

RT ToolBox is an app by Łukasz Sieczkowski in the Tools category, listed since at least January 2021. It has no native code, so it runs on any Android processor.

Since version 1.0.16, the APK grew from 5.3 MB to 6.9 MB. It asks for 10 permissions, none of them sensitive. It asks for the same permissions as version 1.0.18. The app can read the advertising ID that ad and analytics services use.

What's new in v1.0.19

Android 15 update

Description

From the listing uploaded by “appupdater”.

Exposure calculator with an integrated timer and isotope bunker. Quick and easy tool to calculate exposure times for industrial isotopes used for Radiography Testing in Non-Destructive Testing ( NDT ). Allow to storage and monitor source decay used by RT Operators like: Iridium-192, Selinium-75, Cobalt-60, Ytterbium-169.

Version history

3 versions are listed, going back to v1.0.16.

v1.0.19 LATEST Feb 2, 2026 6.9 MB TRUSTED v1.0.18 Sep 21, 2024 7 MB TRUSTED v1.0.16 May 18, 2024 5.3 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Feb 2, 2026.
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 2 other versions checked

Store checks and file details

Developer signature verified Feb 2, 2026
Validated against Google Play Feb 2, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)E4:F9:0C:00:6B:FC:F2:FC:A4:7B:3B:97:7D:87:40:81:AA:9D:08:6C
File MD50f04cf575192e0d3d625db041f987d73
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 (10)

RT ToolBox requests 10 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
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
Run foreground services android.permission.FOREGROUND_SERVICE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

RT ToolBox 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 RT ToolBox 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 0f04cf575192e0d3d625db041f987d73.