App Lock: Fingerprint or Pin is a privacy-focused mobile app designed to help users lock sensitive apps and hide private content. With features like fingerprint unlocking, pattern/PIN protection, hidden photo/video vaults, and fake cover disguises, the app empowers users to take control of their personal data and maintain digital privacy across their devices.
Mobile Design
UI/UX Design
Visual Concept

Project Info
Android Application (10M+ installs)
Project Duration
2 Months
My Role
UI/UX Designer
Problem Statement
While smartphones offer device-level security, users often lack app-level privacy controls. Sensitive apps like social media, messaging, or photo galleries remain exposed once the phone is unlocked. Many users also want to hide personal photos, videos, or files, but built-in tools don’t offer this. Moreover, some privacy apps on the market lack flexibility, usability, or trusted features.
Solution
Hide apps, hide pictures you need. Take pictures of intruders.
Smart app lock - the perfect way to prevent unauthorized access and protect privacy. Lock apps, video and photo vaults, preview message notifications, personal notes, sounds, etc.
4 simple lock types: Fingerprint Lock or Pattern Lock or PIN Lock or Password Lock
Change Pattern Lock or Pin Code or Password Lock anytime and as many times as you like
Light Power
Key Features
Powerful app lock with fingerprint lock or pattern lock or pin code or password lock
App Lock supports easy fingerprint lock/unlock
Hide secret videos & photo vaults simply, quickly and conveniently
Intruder selfie to “catch” intruders
Multiple visual themes with dark mode, light mode for lock screen
Result
Over 10 million downloads on Google Play
Takeaway
Improved practical knowledge in designing security-related mobile applications
Enhanced teamwork and collaboration skills
Refined UI design skills


