The Master Key System

The Complete Book, 1st Edition 1916 - FREE

Noah Stewart · ebook.generico.master.system

5.0 out of 5 (1 rating) 50K+ downloads v4.0 8.3 MB Android 5.0+ PEGI 3 · Everyone

Download APK 8.3 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v4.0 (4)
Updated: Aug 31, 2025 (1 year ago)
APK size: 8.3 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Books & Reference (app)
Listed since: Nov 29, 2022 (at least)
Permissions: 9
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

The Master Key System is an app by Noah Stewart in the Books & Reference category, listed since at least November 2022. It has no native code, so it runs on any Android processor.

Since version 3.0, the APK grew from 2.4 MB to 8.3 MB and the minimum Android version rose from 2.3.3 to 5.0. It asks for 9 permissions, none of them sensitive. Compared with version 3.0, it adds 5 new permissions: “Access adservices ad id”, “Access adservices attribution”, “Access adservices topics” and 2 more. The app can read the advertising ID that ad and analytics services use.

Description

From the listing uploaded by “appupdater”.

The Complete Book, 1st Edition 1916 - FREE ------------------------ The Master Key System by Charles Haanel The Master Key System is a personal development book by Charles F. Haanel that was originally published as a correspondence course in 1912. Though originally a 24 week correspondence course, it was published in book form in 1916. It was first published as a book in 1916 by Psychology Publishing, St. Louis and The Master Key Institute, New York. Along with "The Science of Getting Rich", by Wallace D. Wattles, the Master Key System is the source of Rhonda Byrne's inspiration for the book and the film "The Secret" (2006). Charles F. Haanel was an American author, millionaire, entrepreneur, and businessman who belonged to several Masonic societies, the American Scientific League, The Author’s League of America, The American Society of Psychical Research, the St. Louis Humane Society, and the St. Louis Chamber of Commerce. The Master Key System has gained popularity in recent years, in no small part from its influence on the film The Secret, but also in part from a number of other rumors. The two most prominent are that it was the source of Bill Gates' inspiration and success behind Microsoft, and that the book was banned by the Roman Catholic Church. It states that Gates discovered the book as a student at Harvard. He was so inspired he dropped out and went on to found Microsoft. Several sources refer to this story, however there remains no verified reference that this is anything but a rumor. Similarly, there are accounts that the book dropped out of sight partly as a result of being banned by the Church. This would presumably be the Roman Catholic Church. However, again there is no verifiable reference to this being the case. An ancillary rumor to the banned by the Church rumor, is that Haanel himself wanted to keep the information in the book esoteric, and accessible only to a few. ---------------------- Looking for ebooks? Take a look at other classic books we published on Google PLay.

Version history

2 versions are listed, going back to v3.0. Since v4.0 it requires Android 5.0+.

v4.0 LATEST Aug 31, 2025 8.3 MB TRUSTED v3.0 May 31, 2024 2.4 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 31, 2025.
Certificate issued to “grosso punk” This is the certificate of the Google Play version.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Aug 31, 2025
Validated against Google Play Aug 31, 2025
Signed byCN=grosso punk
Signing certificate (SHA-1)A9:07:A7:0B:12:23:B4:65:70:E3:7E:21:DE:9E:2D:33:B1:0F:05:2A
File MD55a08331cc9421e2121bfa780a5466d20
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 (9)

The Master Key System requests 9 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
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) ebook.generico.master.system.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
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

The Master Key System APK: questions and answers

Is there a version of The Master Key System for older Android phones?

The current version needs Android 5.0 or later. Version 3.0 is the newest listed build that installs on Android 2.3.3 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 3.0 · 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 Master Key System 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 5a08331cc9421e2121bfa780a5466d20.