Compare matching angles
Records are organized by date and angle. Two matching records can sit side by side or alternate at a larger size while keeping their original proportions.
Personal records & privacy
Secret Body
Easy to compare.
Yours to keep.
A private photo journal for comparing changes from the same camera angle.
Product · UX/UI · Engineering · Operations
Photos and notes stay encrypted on the device, without an account or server.
The starting problem
Progress appears across many photos, but a camera roll makes matching dates and angles difficult. Personal images also call for a deliberate balance between useful comparison and private storage.
The experience
- Unlock the vault
- Record date and angle
- Compare matching views
- Lock when leaving
Inside the product
View original image ↗
Design decisions
Keep the vault on the device
Photos, dates, angles, and notes are encrypted. The scope is a personal vault without accounts, servers, advertising, or analytics SDKs.
Explain lock and recovery limits
The vault locks when the app becomes inactive. The first-use flow explains that forgotten passwords and lost devices cannot be recovered.
Implementation & scope
Record and session rules are separate from platform security. Swift and Kotlin modules handle native security alongside local storage.
React NativeExpoSwift / KotlinAES-GCM
A React Native mobile app project. Images are web-preview captures used for the in-app guide; comparison photos are test shapes.