The PIN Key hides your bank or smart phone PIN codes in Color Pattern PIN cards.
About The PIN Key
The PIN Key is a finance app developed by Prebhans.
Download Statistics
The PIN Key has been downloaded 10 thousand times. In the last 30 days, the app was downloaded 26 times.
User Ratings
The app has no ratings yet.
App Information
The PIN Key is FREE to download. The APK download size is 6.05 MB. The latest version available is 2.36.56. The last update was on September 11, 2025.
Technical Requirements
The PIN Key requires Android 4.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play April 2014.
Description
The PIN Key is a pin code reminder to help you remember your pin codes by using PIN cards. You probably have many PIN codes for your smart phones, bank and credit cards, maybe also for you family. The PIN Key exploits the fact that the brain recognizes patterns better than it remembers digits. The PIN Key uses a color pattern to hide pin codes. The output is a PIN card that hides you PIN codes. In Northern Europe some banks offers a paper solution to its customers using color pattern cards. The security is that only you know the selected pattern.
THE METHOD:
• 40 colored squares in 5 rows of 8 squares. • 4 color red, green, blue and yellow randomly distributed. • Select four squares that you can remember. • Enter your 4 pin code digits. • The PIN Key fills the remaining 36 digits randomly. • PIN card contains 4 digits of each from 0 to 9. • Then you have a PIN card in you smart phone. • Visit developer's website by the link below for more information.
ADVANTAGES:
• Each PIN card has a headline to name your PIN card. • Up to 18 PIN cards can be stored. • PIN card is saved in phone memory on SD card. • The PIN card is only a graphic file in your smart phone. • No PIN code is saved. • PIN cards are available from a folder in the SD card. • With a USB cable you PIN cards can be saved to your laptop/PC. • It allows you to protect your PIN cards. • PIN cards can then be print out in case something happens to you smart phone.
You can store printed PIN cards together with your bank and credit cards. If someone gets access to your PIN cards they will only see 40 digits, randomly placed. Only you know the hidden pattern.
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Excellent, just what I have been searching for, unfortunately I have been "slightly spoiled" by having used pin card app on a Windows phone ten or so years ago. (Windows might have had far fewer apps, but what they did have were, with exceptions, quality). This is virtually the same, & a brilliant way to display pins . Anyone sees your screen & they won't have a clue. Only snag is, if someone does know a specific pin code of yours, they can work out the rest. If they have access to your phone.
★★★★☆Sunny Saini· Sep 24, 2017
Why huge size of 5.4 MB? Why does it have its own numerical keyboard? Why not Android numerical keyboard used? Does it send entered PINs to the server? If not, then why does it need full network permission?
★★☆☆☆eric denekamp· Aug 29, 2025
Adding a new card has become impossible for the app top bar is blocking the entry of the card name.
Google Play Rankings for The PIN Key
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Technologies used by The PIN Key
The PIN Key is requesting 11 permissions and is using 12 libraries.
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