About
Private PhotoVault is a leading photo and video security app, trusted by millions for its double-layer protection with app and album-level password features on iOS and Android. When I began working with them, they had around 300k ratings. Three years later, I continue to support their product, and we are now reaching over 900k 5-star ratings on the App Store.
Role & Collaboration
As the Sole Product Designer, I collaborated with the Founder, PM, and Engineering team to overhaul Private PhotoVault’s mobile app. The redesign included optimizing various app areas, introducing a new dark mode with accessibility features, and enhancing the paywall to reduce churn and increase conversions.

Role
Services
UI Design
UX Research and testing
Animation/Interactions
Design System
WCAG Accessibility
Dev Support & Collaboration
Status
Launched
Length
Platforms
Mobile Redesign
This UI/UX redesign aimed to make the app more modern, accessible, and user-friendly. I began by analyzing the existing experience and competitors to identify areas for improvement. I refined navigation, optimized key interactions, and ensured WCAG accessibility compliance in both light and dark modes. Additionally, I explored ways to enhance existing systems and worked with the Founder to shape new feature ideas.
Introducing Dark Mode
Going into the dark mode design, I focused heavily on WCAG accessibility standards. I developed a new color palette with slightly saturated values to enhance visual appeal and readability while reducing eye strain. Following Material Design guidelines, I used a dark base color with varying white values for elevation. I documented design decisions to ensure consistency and a smooth developer handoff.
Mobile Redesign Impact
22
200
15%
Variations for A/B Testing
I worked closely with the PM and Founder to create multiple iterations of the new paywall design for A/B testing. We tested various color schemes, adjusted copy from titles to descriptions, and explored both dark and light modes. My goal was to resolve at least 80% of the issues the client faced with their paywall.