Trace - Record of Change

Capture the small moments that change over time. Overlay past photos to keep the same composition. Compare and share your visual timeline.

Trace is a quiet photo journal for the things that change slowly. Take a photo today. See it as a translucent overlay tomorrow. Capture the same shot, the same angle, the same moment — across days, weeks, months. Then watch your timeline unfold. Perfect for tracking diet progress, plant growth, room transformations, or anything else worth remembering in slow motion. KEY FEATURES — Reference Overlay Camera See your previous photo through the live camera view. Adjust opacity with a smooth slider. Match the angle, framing, and moment perfectly every time. — Two Compare Modes Stack mode shows photos side by side, top and bottom. Slider mode lets you drag a divider to reveal change with a wave-style boundary. Pinch to zoom into any detail. — Folders & Projects Organize your timelines into folders. Create projects for plants, friends, fitness, or anything you want to track. Set custom cover photos for each. — Photo Library Import Bring in photos you already have. EXIF dates are automatically preserved so your timeline starts from the moment the original shot was taken. — Beautiful Export Save your timeline as a slideshow album in Photos for easy playback, or export as a single vertical collage to share. Send to anyone via the share sheet. — Editorial Dark Theme Lora serif headlines, Inter sans interface, and a coral accent on a deep charcoal background. Designed to feel like a quiet space for reflection. — Privacy First Every photo and project stays on your device. No accounts, no cloud sync, no analytics, no ads. Your moments are yours alone. — Two Languages English and Korean (한국어), with daily-reset onboarding. WHO IT'S FOR — People tracking diet, fitness, or personal change — Plant lovers documenting growth — Travelers recording the same view across seasons — Anyone who wants to remember how things slowly transform