PIN vs Visible PIN

PIN-Master is a small tool that makes it easier to remember PIN numbers. PIN-Master does not save the PINs itself or the associated passwords. Instead, a letter card is generated that can be used to decrypt a PIN together with a password. PIN-Master can encrypt up to 8 PINs with one or more passwords and display them on a letter card. PIN-Master saves the letter card as a document; several of these documents can be kept so that more than 8 PINs can be encrypted. The letter card can be printed out, e.g. in the size of a credit card, and stuck onto a card that is no longer in use.

Visible PIN — your PIN code in plain sight… but not for everyone. Forget scribbled notes and hidden memos! Visible PIN is a smart and secure app for storing your bank card PINs by turning secrecy into visibility. At its core is a simple yet brilliant idea: you see a grid of digits, and any digit can be highlighted in color. You decide which cells are “active”—that’s where your PIN is hidden. To you, it’s an obvious sequence. To anyone else glancing at your phone, it’s just a colorful table with no meaning. How it works: — Create a new “card” and give it a name (e.g., “My Favorite Bank Card”). — Choose your PIN and highlight the corresponding digits in the grid using your chosen color. — The app never stores your actual PIN—only your unique coloring pattern. — At any time, you can recall your code just by looking at the highlighted cells. Security through obscurity Even if someone sees your screen, they won’t know: — In what order to read the digits, — Which colors are meaningful and which are just decoration. This isn’t encryption—it’s visual camouflage based entirely on your personal logic. Flexibility and control — Change highlight colors to match your mood or differentiate between cards. — Add decoy highlights to further confuse onlookers. Visible PIN doesn’t store your secrets. It makes them invisible in plain sight. Because the best password is the one nobody’s looking for.