50+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

GUA – Graphical User Authentication

Secure. Visual. Modern.

GUA (Graphical User Authentication) is a powerful and innovative authentication app that redefines the way users log in to systems and applications. Moving away from traditional text-based passwords, GUA uses a sequence of images selected by the user as their authentication key. This visual method leverages the natural strength of human visual memory, making authentication more intuitive, user-friendly, and secure.

🔐 Why CAVE?
Text-based passwords have long been the default method for user authentication, but they come with well-known vulnerabilities: weak password choices, reuse across sites, brute force attacks, phishing, and shoulder surfing. GUA solves these issues by replacing passwords with a graphical login system. Rather than typing characters, users authenticate by choosing a specific sequence of images from a matrix/grid — a process that is both secure and easier to remember.

🧠 How It Works
Registration:

The user is shown a grid of images (e.g., 5x5 matrix).

They select a sequence of images as their password (e.g., 5 images).

The app securely stores this image pattern as the user's authentication key.

Login:

During login, the user is shown a randomized image grid.

They must select the images in the exact order they chose during registration.

If the sequence matches, access is granted.
Updated on
Oct 25, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data isn’t encrypted
You can request that data be deleted

What’s new

What's New

New Registration Method:
Users can now register using 4 images, where each image has its own direction (up, down, left, or right). This adds a powerful layer of personalization and security to the authentication process.

Enhanced Authentication System:
The GUA app continues to replace traditional passwords with a secure 5x5 image matrix–based login system.

Smarter & More Secure Experience:
Improved security, greater flexibility, and a smoother login experience for all users.

App support

About the developer
Muhammad Farhaj Khan
farhajkhan88@gmail.com
Pakistan