Control Systems Knowledge app icon

Control Systems Knowledge

A knowledgeable and handy app for learning Control Systems!

gustar-droid · com.prashantsj.apps.controlsystems

Not rated yet 76 downloads v0.0.2 1.5 MB Android 4.0.3+ PEGI 3 · Everyone

At a glance

Latest version
v0.0.2 (2)
Updated
Sep 5, 2025 (1 year ago)
APK size
1.5 MB
Requires
Android 4.0.3+ (API 15)
CPU support
Any (no native code)
Category
Education (app)
Listed since
Feb 8, 2020 (at least)
Permissions
2
Website
gustar-droid.blogspot.com
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Control Systems Knowledge is an app by gustar-droid in the Education category, listed since at least February 2020. It has no native code, so it runs on any Android processor.

It asks for 2 permissions, none of them sensitive.

What's new in v0.0.2

Minor bug fixes.

Description

From the listing uploaded by “catappult”.

Control Systems Knowledge

Security & authenticity

Security rating: Trusted

Signing certificate

  • Certificate with Google's generic name Google Play App Signing gives the keys it manages this name, but anyone can put it in a certificate, so this alone proves nothing.

Store checks and file details

  • Developer signature verified Sep 5, 2025
  • Antivirus scan passed Sep 29, 2020
  • Tested by the source store's staff Feb 12, 2020
  • Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
  • Signing certificate (SHA-1)94:98:5B:34:3D:1A:3D:4A:D9:84:BE:AD:50:FE:EE:57:FD:3F:8C:A6
  • File MD5fca9fdd06c53a939ceff2430b618b396
  • Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018

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 (2)

Control Systems Knowledge requests 2 permissions, none of them sensitive.

Required hardware & features

Control Systems Knowledge APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the Control Systems Knowledge APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is fca9fdd06c53a939ceff2430b618b396.

Tags

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