trace

Trace

Record of change.

Trace is a photo journaling app for tracking slow visual change — diet, plant growth, room transformations, or anything worth remembering across weeks and months.

Support

Need help, found a bug, or have a feature request?

Email: slowforge.studio@gmail.com

We usually respond within 1–2 business days.

You can also open an issue on this repository.

Features

Reference overlay camera — see your previous photo as a translucent overlay through the live camera, so every shot matches the same composition
Two compare modes — stack (top/bottom split) or slider (drag-to-reveal)
Folders & projects — organize timelines by topic (Plants, Fitness, Travel)
Photo library import — bring in existing photos with original EXIF dates preserved
Export — save as a slideshow album or share a vertical collage
Two languages — English and 한국어
Privacy first — everything stays on your device. No accounts, no cloud, no analytics

FAQ

Where is my data stored? All photos and project information stay on your device. Trace does not use cloud sync, accounts, or analytics.

Can I back up my projects? Use the Export feature to save slideshows or collages to your Photos library. iCloud Photos backup applies to exported albums.

Will my photos sync across devices? Not in the current version. Each device keeps its own library.

How do I switch between English and Korean? Open Settings inside the app and toggle the language.

Why does the app ask for camera and photo library access? Camera access is required for the reference overlay camera. Photo library access is required for importing existing photos and saving exports. Trace does not upload or share photos without your action.

Privacy

See our Privacy Policy.

Short version: Trace stores all data locally on your device. We do not collect, transmit, or share any personal information.

Requirements

iPhone or iPad running iOS 15 / iPadOS 15 or later
Camera and photo library permissions

About

Trace is built and maintained by Slowforge Studio.

Contact: slowforge.studio@gmail.com