Version history
The Master Key System - DONATE
24
ASO score
Text
49/100
Reviews
0/100
Graphic
4/100
Other
0/100
App Rating
Votes
App Age
9y 2m
Last Update
Aug 27, 2025
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Installs
|
143
|
21.4M
|
-100%
|
|
Rating
|
0
|
4.31
|
|
|
Number of Ratings (Voted)
|
0
|
26.2M
|
|
|
App Age
|
9y 2m
|
5y 10m
|
+57%
|
|
Price
|
$2
|
$0
|
|
|
In-app Purchases Price
|
$0
|
$105
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|
|
Update Frequency
|
134d
|
83d
|
+62%
|
|
Title Length
|
30
|
25
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+20%
|
|
Short Description Length
|
40
|
61
|
-34%
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Description Length
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2 250
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2 502
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-10%
|
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Number of Screenshots
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176
|
1079
|
-84
%
|
|
Has Video?
|
No
|
0% has videos
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|
|
Size
|
0MB
|
0MB
|
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
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No results were found!
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| Top | Jan 01, 2026 | Jan 08, 2026 |
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Downloads
Downloads Graph
Total
143
Last month
0
Text ASO
Title
(
Characters:
30
of 50
)
The Master Key System - DONATE
Short Description
(
Characters:
40
of 80
)
This is the DONATE version of the book .
Description
(
Characters:
2250
of 4000
)
This is the DONATE version of the book. Buy this version if you want to help me publish other classic self improvement books here on Google Play. On the DONATE version no ads are shown.
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.}
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Other
Additional Information
| Rating: | |
| Voted: | 0 |
| Google Play Link: | |
| Price: | 0.7 $ |
| Website: | - |
| Email: | |
| Privacy Policy: | |
| Categories: | Books & Reference |
| Size: | - |
| Installs: | 143 |
| App Age: | 9 years 2 months |
| Release Date: | Nov 12, 2016 |
| Last Update: | Aug 27, 2025 |
| Version: | 2.0 |
Version history
2.0
Aug 27, 2025
1.0
Nov 13, 2016
