CCTV Calculator and Tools

This application is a tool designed for camera calculations and tests.

KARELab · com.kareller.cctvcalculator

Not rated yet 50K+ downloads v1.0.15 9.5 MB Android 6.0+ PEGI 3 · Everyone

Download APK 9.5 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.0.15 (16)
Updated: Aug 30, 2026 (1 month ago)
APK size: 9.5 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Tools (app)
Permissions: 13 (1 sensitive)
Website: kareller.com
Developer contact: [email protected]

About this APK

CCTV Calculator and Tools is an app by KARELab in the Tools category. It has no native code, so it runs on any Android processor.

Since version 1.0.7, the APK grew from 6.5 MB to 9.5 MB and the minimum Android version rose from 4.0 to 6.0. It asks for 13 permissions, 1 of them sensitive: modify shared storage. Compared with version 1.0.10, it adds 4 new permissions: “Access adservices ad id”, “Access adservices attribution”, “Access adservices topics” and “Google Play install referrer”. The app can read the advertising ID that ad and analytics services use.

What's new in v1.0.15

- improvements

Description

From the listing uploaded by “appupdater”.

CCTV Calculator is a tool designed for camera system basic parameters calculations and testing. It enables easy calculation of an appropriate focal length, camera view, bandwith for camera system, storage capacity and of other parameters. Includes the following features: Camera System Calculations - Lens focal length Calculator - Camera viewing angle - Bandwidth Calculator - Storage Calculator Network and Wireless Calculations - IPv4 and IPv6 address Calculator - Free Space Path Loss - Power Budger Calculator - System Performance Calculator - Fresnel zone - mW to dBm Calculator Server and Raid Calculations - RAID Calculator - RAID array space Tools - OnVIF Compatibility Test - Ping Test - Port Forwarding Test - Network Discovery - Lan Port Scanner - Wan Port Scanner - What is my IP? - More Network Tools Knowledge Base - CCTV Default Login Informations - CCTV Terms and Definitions - Security Assessment of CCTV - RJ45 Cable Wiring

Version history

3 versions are listed, going back to v1.0.7. Since v1.0.15 it requires Android 6.0+.

v1.0.15 LATEST Aug 30, 2026 9.5 MB TRUSTED v1.0.10 Jan 16, 2026 6.8 MB TRUSTED v1.0.7 Jun 9, 2023 6.5 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 30, 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 Aug 30, 2026
Validated against Google Play Aug 30, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)CE:C6:1E:AC:71:E2:AD:22:C1:86:59:FF:C8:DF:25:79:22:B9:37:6A
File MD593e27858a68029d671b88c1d26efceab
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 (13)

CCTV Calculator and Tools requests 13 permissions, 1 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
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
Change wifi state android.permission.CHANGE_WIFI_STATE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) com.kareller.cctvcalculator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Wi-Fi android.hardware.wifi

CCTV Calculator and Tools APK: questions and answers

Is there a version of CCTV Calculator and Tools for older Android phones?

The current version needs Android 6.0 or later. Version 1.0.10 is the newest listed build that installs on Android 5.0 and later. Get version 1.0.10 · 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 CCTV Calculator and Tools 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 93e27858a68029d671b88c1d26efceab.